Abstract:
Systems and methods for parametrically searching databases. Database definitions may be provided by users. Interface definitions may be provided by users. Interfaces may be provided dynamically.

Description:
FIELD OF THE INVENTION 
   The present invention relates to systems and methods for performing parametric searches of electronic databases. More particularly, this invention relates to systems and methods for providing parametric search engines that search user-specified electronic databases and that have user interfaces that can be configured dynamically. 
   BACKGROUND OF THE INVENTION 
   A parametric search is a search technique that identifies a desired product by using attributes, commonly referred to as “parameters,” of that product. Parameters are supplied by end-users to define the searches. An end-user is a person who performs a parametric search to identify a desired product. Each parameter that is supplied by the end-user potentially narrows the number of products that satisfy the search. Generally, end-users provide search parameters, examine the search results for those parameters, and provide additional parameters to narrow the search. As a result, parametric searches are iterative searches in which an end-user progressively adds more and more parameters to the search until finding the desired product or products. 
   Because of this iterative process, parametric searches are well suited for computer applications. In fact, parametric search engines are currently being used for searching electronic catalogs on the Internet. An electronic catalog is a series of data records that have been logically grouped into various categories. A parametric search engine searches through the hierarchy and structure of the data records within the electronic databases to find products having the specified parameters. 
   One approach for designing parametric search engines is to tailor the parametric search engine for the structure and hierarchy of a specific electronic database (i.e. for a particular data record definition). This approach, however, is undesirable because a new parametric search engine must be created, or an existing parametric search engine must be modified, for different electronic databases. Furthermore, if the hierarchy or structure of the data records within the electronic database is modified, the parametric search engine must be modified as well. Such an approach is inefficient in terms of both time and resources. 
   Another approach for designing parametric search engines is to create a parametric search engine that searches a specific database format, such as Microsoft&#39;s SQL Server or Oracle&#39;s  8   i  database. This approach allows the parametric search engine to be used for multiple applications, as long as those applications use the specified database format. After the electronic database has been properly formatted, parametric search engines of this type import the electronic database. If the structure or hierarchy of the data within the electronic database is later changed or modified, parametric search engines of this type must then re-import the modified database before performing a parametric search on the modified database. 
   Thus, it would be desirable to have systems and methods for providing parametric search engines that dynamically search electronic databases without re-importing the database or converting the database to a standard format and that have interfaces that can be configured dynamically. 
   SUMMARY OF THE INVENTION 
   The present invention provides systems and methods for dynamically performing parametric searches of electronic databases. In some embodiments, searches of user-specified electronic databases may be dynamically performed for different or updated databases without re-importing the database or converting the database to a standard format. In some embodiments, user interfaces are provided to users dynamically to provide interface features appropriate to the current database. In some embodiments, a parametric search may be performed on a user-specified electronic database in which the user interfaces are provided to the users dynamically. 
   A computer application may be provided within a parametric search engine that prompts a user to describe the hierarchy of the data records within the electronic database. With this information, the computer application creates a mapping function between the data records within the electronic database and the parametric search engine. This mapping function describes the hierarchy of the data records to the parametric search engine which enables the parametric search engine to locate and process the data records as required. 
   By specifying in a file (“specification file”), for example, the structure or hierarchy of the data records within the electronic database instead of importing the entire database, parametric searches could then be performed on modified databases by simply updating the specification file. After a database has been modified, a parametric search engine could execute an application which prompts a user to specify the new structure or hierarchy of the database and then updates the specification file. A user is a person who maintains the electronic database and modifies the parametric search engine, when required. In this way, parametric search engines could dynamically search modified electronic databases without re-importing the database. 
   Furthermore, parametric search engines have user interfaces that also may need to be modified without having to re-import the entire database. The user interface is an integral part of any parametric search engine. The user interface allows the end-user to select the parameters for the search as well as view the results of that search. The format of the user interface is a function of the data and the hierarchy of that data within the electronic database. Although the data within an electronic database may not change, it is often advantageous to modify how that data is presented to the end-user. Existing parametric search engines, however, alter existing user interfaces by first modifying the electronic database and then re-importing the entire database into the parametric search engine. Consequently, this type of modification to the user interface could not occur dynamically. A better and more efficient approach would allow the parametric search engine to configure or tailor the user interface dynamically. 
   Some embodiments of the present invention may prompt the user to specify the format of each computer screen that is presented to the end-user during each iteration of the parametric search. For example, some embodiments of the present invention may provide a limited number of parameters to the end-user during each iteration of the parametric search. These parameters may be selected by the user. The user may be prompted to describe the format in which these parameters may be displayed to an end-user. For example, the user may be prompted to specify the display options for the parameters, such as the order in which the parameters are listed and how the parameters are presented. Users may select between various display elements, such as list boxes, check boxes, boolean fields (e.g., Yes/NO, On/Off), any other suitable display option, or any suitable combination of display options. 
   The display options may be stored in a data definition file that is used by the parametric search engine. If the user decides to alter the user interface at a later time, some embodiments of the present invention may re-execute the computer application to allow the user to make whatever changes are required. The computer application then updates the data definition file in view of the changes made by the user. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Further features of the present invention, its nature and various advantages will be more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout, and in which: 
       FIG. 1  is a diagram of an illustrative Internet-based system in accordance with one embodiment of the present invention. 
       FIG. 2  is a diagram of an illustrative non-Internet client/server-based system in accordance with one embodiment of the present invention. 
       FIG. 3  shows a generalized arrangement for the access device of  FIG. 1  in accordance with one embodiment of the present invention. 
       FIG. 4  shows a generalized arrangement for the Internet and application server of  FIG. 1  in accordance with one embodiment of the present invention. 
       FIG. 5  is an illustrative diagram in accordance with one embodiment of the present invention in which electronic databases are stored by the Internet and application server of  FIG. 1 . 
       FIG. 6  is an illustrative diagram in accordance with one embodiment of the present invention in which electronic databases are stored locally on each customer&#39;s computer system. 
       FIG. 7  is an illustrative diagram in accordance with one embodiment of the present invention in which electronic databases are stored by the Internet and application server of  FIG. 1 , are stored locally on some customers&#39; computer systems and are stored on a third party&#39;s computer system. 
       FIG. 8  is a generalized flowchart of illustrative steps involved in performing parametric searches in accordance with one embodiment of the present invention. 
       FIG. 9  is a more-detailed flowchart of illustrative steps involved in performing parametric searches in accordance with a web-based embodiment of the present invention. 
       FIG. 10  is a flowchart of illustrative steps involved in defining hierarchical structures of an electronic database in accordance with one embodiment of the present invention. 
       FIG. 11  is a generalized flowchart of illustrative steps for a parametric search that may be performed in accordance with one embodiment of the present invention. 
       FIGS. 12A and 12B  are more detailed flowcharts of illustrative steps for a parametric search that may be performed in accordance with one embodiment of the present invention. 
       FIGS. 13 and 14  are illustrative displays for allowing users to specify electronic databases in accordance with one embodiment of the present invention. 
       FIGS. 15 and 16  are illustrative displays for allowing users to view the hierarchical structure of an electronic database in accordance with one embodiment of the present invention. 
       FIGS. 17 and 18  are illustrative displays for allowing users to specify sub-groups within an electronic database in accordance with one embodiment of the present invention. 
       FIGS. 19 and 20  are illustrative displays for allowing users to view the hierarchical structure of sub-groups within an electronic database in accordance with one embodiment of the present invention. 
       FIG. 21  is an illustrative display for allowing users to edit the user interface of a parametric search engine in accordance with one embodiment of the present invention. 
       FIG. 22  is an illustrative display for allowing end-users to provide search parameters during a parametric search in accordance with one embodiment of the present invention. 
       FIG. 23  is an illustrative display for allowing users to edit the user interface of a parametric search engine in accordance with one embodiment of the present invention. 
       FIG. 24  is an illustrative display for allowing end-users to provide search parameters during a parametric search in accordance with one embodiment of the present invention. 
       FIG. 25  is an illustrative display for allowing users to edit the user interface of a parametric search engine in accordance with one embodiment of the present invention. 
       FIG. 26  is an illustrative display for allowing end-users to provide search parameters during a parametric search in accordance with one embodiment of the present invention. 
       FIG. 27  is an illustrative display for allowing users to edit the user interface of a parametric search engine in accordance with one embodiment of the present invention. 
       FIG. 28  is an illustrative display for allowing end-users to provide search parameters during a parametric search in accordance with one embodiment of the present invention. 
       FIG. 29  is an illustrative display for allowing end-users to initiate a parametric search in accordance with one embodiment of the present invention. 
       FIGS. 30 and 31  are illustrative displays for allowing end-users to select initial parameters for a parametric search in accordance with one embodiment of the present invention. 
       FIGS. 32A ,  32 B,  33 A and  33 B are illustrative displays for allowing end-users to select parameters for a second iteration of a parametric search in accordance with one embodiment of the present invention. 
       FIGS. 34A ,  34 B,  35 A and  35 B are illustrative displays for allowing end-users to select parameters for a third iteration of a parametric search in accordance with one embodiment of the present invention. 
       FIGS. 36A ,  36 B,  37 A and  37 B are illustrative displays for allowing end-users to select parameters for a fourth iteration of a parametric search in accordance with one embodiment of the present invention. 
       FIG. 38  is an illustrative display for allowing end-users to select parameters for a fifth iteration of a parametric search in accordance with one embodiment of the present invention. 
       FIG. 39  is an illustrative display for allowing end-users to view the results of a parametric search in accordance with one embodiment of the present invention. 
       FIG. 40  is an illustrative display for allowing end-users to view detailed information regarding a product manufacturer that was identified by a parametric search in accordance with one embodiment of the present invention. 
       FIG. 41  is an illustrative display for allowing end-users to compare the results of a parametric search in accordance with one embodiment of the present invention. 
   

   DETAILED DESCRIPTION 
   The parametric search systems and methods of some embodiment of the present invention may be implemented using any suitable communications network. For example, any suitable non-Internet-based client/server or peer-to-peer approach or, preferably, any suitable Internet-based approach, may be used. If desired, a combination of these approaches may be used. Illustrative Internet-based and non-Internet-based arrangements are shown in  FIGS. 1 and 2 , respectively. In the illustrative Internet-based arrangement of  FIG. 1 , access devices  115  may be connected via links  105  to Internet  100 . Access devices  115  may include any device or combination of devices suitable for providing Internet access to either a user or an end-user of the systems and methods of the present invention. Access devices may include, for example, any suitable personal computer (PC), portable computer (e.g., a notebook computer), palmtop computer, handheld personal computer (H/PC), automobile PC, personal digital assistant (PDA), Internet-enabled cellular phone, combined cellular phone and PDA, ebook, set-top box (e.g., a Web TV enabled set-top box), or other device suitable for providing Internet access. 
   Internet and application server  110  may be any server suitable for providing on-line access to a parametric search web site. Internet and application server  110  may, for example, provide one or more pages to access devices  115  using one or more suitable protocols (e.g., the HyperText Transfer Protocol (HTTP) and Transmission Control Protocol/Internet Protocol (TCP/IP)). The pages may be defined using, for example, any suitable markup language (e.g., HyperText Markup Language (HTML), Dynamic HyperText Markup Language (DHTML), etc.), and include pages defined using the Extensible Markup Language (XML), JavaServer Pages (JSP), Active Server Pages (ASP), or any other suitable approaches. The pages may include scripts, computer code, or subsets of computer code, that define mini-programs (e.g., Perl scripts, Java applets, Enterprise JavaBeans (EJB) or any other suitable approach). The system may be designed using suitable approaches, such as Java 2 Platform—Enterprise Edition (J2EE), Component Object Model (COM), Distributed Component Object Model (DCOM), or any other suitable approach. 
   Internet and application server  110  may run a database engine suitable for maintaining electronic databases such as, for example, Microsoft SQL Server, Oracle  8   i , or any other suitable database engine. Internet and application server  110  may maintain product catalogue databases, such as databases for integrated circuits, automobile parts, pharmaceutical products, construction materials, or any other suitable product or combination of products. 
   In practice, functionalities of Internet and application server  110  may be integrated into a single server, or may be distributed across multiple servers that are interconnected via Internet  100 . In addition, different product catalogue databases may be maintained on multiple servers that are interconnected via communications network  150 . For example, a user may maintain a product catalogue locally on a database engine that is connected to communications network  150 . Internet and application server  110  may then transmit the appropriate commands over communications network  150  to the user&#39;s database engine in order to perform the parametric search. 
   Links  105  may include any transmission medium suitable for providing Internet access to access devices  115 . Links  105  may include, for example, a dial-up telephone line, a computer network or Internet link, an infrared link, a radio frequency link, a satellite link, a digital subscriber line link (e.g., a DSL link), a cable TV link, a DOCSIS link, or any other suitable transmission link or suitable combination of such links. Different links  105  may be of different types depending on, for example, the particular type of access device  115 . 
   Any protocol or protocol stack suitable for supporting communications between access devices  115  and Internet and application server  110  over links  105  based on the particular access device  115  and link  105  may be used. For example, Ethernet, Token Ring, Fiber Distributed Data Interface (FDDI), Circuit-Switched Cellular (CSC), Cellular Digital Packet Data (CDPD), RAM mobile data, Global System for Mobile communications (GSM), time division multiple access (TDMA), code division multiple access (CDMA), wireless application protocol (WAP), serial line Internet protocol (SLIP), point to point protocol (PPP), Transmission Control Protocol/Internet Protocol (TCP/IP), Sequenced Packet Exchange and Internetwork Packet Exchange (SPX/FPX) protocols, or any other suitable protocol or combination of protocols may be used. 
     FIG. 2  shows another illustrative arrangement for a system in accordance with one embodiment of the present invention. In the non-Internet-based client/server arrangement of  FIG. 2 , personal computers  120  (sometimes also referred to herein as access devices) are interconnected via communications network  150  to application server  140 . Application server  140  may be any server suitable for allowing users to perform parametric searches. Application server  140  may run a suitable database engine such as, for example, Microsoft SQL Server, Oracle  8   i , or any other suitable database engine. Application server  140  may, for example, maintain product catalogue databases such as databases for integrated circuits, automobile parts, pharmaceutical products, construction materials, or any other suitable product or combination of products. In practice, the functionalities of application server  140  may be integrated into a single server, or may be distributed across multiple servers that are interconnected via communications network  150 . In addition, different product catalogue databases may be maintained on multiple servers that are interconnected via communications network  150 . For example, a user may maintain a product catalogue locally on personal computer  120 . Application server  140  may transmit the appropriate commands to the user&#39;s personal computer  120  in order to perform the parametric search. 
   Communications network  150  may be any suitable local area network (LAN), wide area network (WAN), or other suitable network. Personal computers, and their interconnection via networks, are well known. Personal computers  120  may run suitable e-mail, HTTP, or other clients and client applications for providing users with access to the features of the system. In still another suitable approach, personal computers  120  may run suitable Internet browsers to provide users with access to the Internet via an Internet server (not shown). If desired, one or more personal computers  120  may be accessed by remote access device  130  to provide remote access to users to the system and method of the present invention. Remote access device  130  may be any suitable device, such as a personal computer, personal digital assistant, cellular phone, or other device with remote access capabilities. 
     FIG. 3  shows an illustrative, generalized arrangement for access device  115  of  FIG. 1 . Access device  115  may have, for example, processing circuitry  310 , storage  330 , user interface  305 , and communications device  320 . Processing circuitry  310  may include any suitable processor, such as, for example, an Intel Pentium® microprocessor, and other circuitry (e.g., input/output circuitry, direct memory access (DMA) circuitry, etc.). Storage  330  may be any suitable memory, storage device, or combination thereof, such as CD-ROM, RAM, ROM, flash memory, a hard-disk drive, etc. User interface  305  may be any suitable input device, output device, or combination thereof, and may include, for example, a pointing device, keyboard, touch-pad, touch screen, pen stylus, voice recognition system, mouse, trackball, cathode ray tube (CRT) monitor, liquid crystal display (LCD), voice synthesis processor and speaker, tactile feedback device, remote scent dispenser or any other suitable user input or output device. 
   Communications device  320  may be any device suitable for supporting communications over links  105 . Communications device  320  may include, for example, a modem (e.g., any suitable analog or digital standard, cable, or cellular modem), network interface card (e.g., an Ethernet card, token ring card, etc.), wireless transceiver (e.g., an infrared, radio, or other suitable analog or digital transceiver), or other suitable communications device. 
     FIG. 4  shows an illustrative, generalized arrangement for Internet and application server  110  of  FIG. 1 . Internet and application server  110  may have, for example, customer  1  database  401 , customer  2  database  402 , customer N database  403 , database engine  404 , database engine  408 , data definition file  405 , search engine  406  and web tool  407 . Customer  1  database  401 , customer  2  database  402  and customer N database  403  may be any collection of data records that is organized such that the contents of the data records can easily be accessed, managed, and updated, such as, for example, IBM&#39;s DB2 database, Microsoft&#39;s Access database, databases from Oracle, Sybase or Computer Associates, or any other suitable database. Database engines  404  and  408  may be any computer program that allows one or more computer users to create and access data records in an electronic database, such as, for example, Microsoft SQL Server, Oracle  8   i  server, or any other suitable database engine. 
   As shown in  FIG. 4 , Internet and application server  110  may maintain multiple customer databases  401 ,  402  and  403  and multiple database engines  404  and  408 . Customer databases and database engines may also be maintained on systems and servers other than Internet and application server  110 . Customers may maintain their databases locally on their own systems, remotely on Internet and application server  110  or may have a third party maintain the customer&#39;s database on that party&#39;s system. When the customer&#39;s database is stored either locally on the customer&#39;s own system or stored remotely on a third party&#39;s system, the customer&#39;s database may be connected to Internet and application server  100  by either Internet  100  or by communications network  150 . Customers may also maintain a database server for their databases locally on their own systems, remotely on Internet and application server  110  or remotely on a third party&#39;s computer system  760 . When the customer&#39;s database engine is stored either locally on the customer&#39;s own system or stored remotely on a third party&#39;s computer system, the customer&#39;s database engine may be connected to Internet and application server  110  by Internet  100  or by communications network  150 . 
     FIGS. 5 ,  6  and  7  are illustrative system architectures for supporting multiple databases in accordance with three embodiments of the present invention.  FIG. 5  shows an illustrative system architecture for Internet and application server  110  in accordance with one embodiment of the present invention. In the example of  FIG. 5 , Internet and application server  110  maintains local copies of database engines  404  and  408  and a local copy of each customer&#39;s database  401  and  403 . Database engines  404  and  408  may allow end-users to access customer A&#39;s and customer B&#39;s databases, respectively, in accordance with one embodiment of the present invention. In another embodiment of the present invention, database engine  404 , for example, may allow end-users to access both customer A&#39;s and customer B&#39;s database. 
     FIG. 6  shows another illustrative system architecture for supporting multiple databases in accordance with one embodiment of the present invention. In  FIG. 6 , customers  1  through N maintain a local copy of both a database engine and their database on a personal computer. In this embodiment, the parametric search engine makes remote calls to the database engines that reside at each customer&#39;s site.  FIG. 7  shows another illustrative system architecture in which some databases (i.e. Customer A&#39;s and Customer B&#39;s databases) are stored on Internet and application server  110 , some databases (i.e. Customer  1 &#39;s through Customer N&#39;s databases) are stored on the customer&#39;s personal computer and some databases (i.e. Customer C&#39;s database) are stored on a third party computer system  760 . In this embodiment, database engine  414  may allow end users to access either customer A&#39;s or customer B&#39;s databases. Also, in this embodiment, when executing a parametric search, parametric search engine  406  may make remote calls to the database engines  601 ,  602 ,  603  and  704  that reside at each customer&#39;s site and that reside on the third party&#39;s computer system, respectively. 
     FIGS. 8–12B  are flowcharts of steps for performing dynamic parametric searches in accordance with one embodiment of the present invention. Some of the steps shown in  FIGS. 8 ,  9 ,  10 ,  11 ,  12 A and  12 B involve providing either a user or an end-user with opportunities to interact with the system, performing various processes, or providing various displays. These and other steps may be performed by, for example, a client application that is programmed to generate or download screens suitable to provide such opportunities, an Internet browser that downloads suitable “web” pages to provide such opportunities, or using any other suitable approach. Other steps may involve additional processing, such as searching or other types of processing. In non-on-line arrangements, such processing may be performed by the client, a server, or distributed among peer applications, depending on the chosen system implementation and the processing requirements of such operations. In on-line arrangements, such processing may be performed by access device  115  or Internet and application server  110 , depending on, for example, the processing and storage capabilities of access device  115 , the chosen implementation for the markup language documents used, the processing requirements of such operations, or other factors. For purpose of clarity, the following discussion will describe the steps shown in  FIGS. 8 ,  9 ,  10 ,  11 ,  12 A and  12 B as being performed by “the system,” which is intended to include any suitable parametric search system, such as, for example, any non-on-line or on-line arrangement suitable for performing the steps. 
   The steps shown in  FIGS. 8–12B  are illustrative and may be combined or performed in any suitable order. By way of illustration, and not for purposes of limitation, this embodiment of the present invention will be described as applied to an electronic database that contains an integrated circuits product catalogue. Also, by way of illustration, and not for purposes of limitation, embodiments of the present invention may be described at various points with respect to a web-based architecture, such as the architecture shown in  FIG. 1 . 
     FIG. 8  is a generalized flowchart of illustrative steps involved in performing parametric database searches in accordance with one embodiment of the present invention. An electronic database is created and maintained by a user at step  800 . For example, customer  1  may create a database of integrated circuits. The database (e.g. IBM&#39;s DB2 database, Microsoft&#39;s Access database or databases from Oracle, Sybase or Computer Associates, etc.) may be supported by database engine  404  (shown in  FIG. 4 ). As part of its processing, search engine  406  may construct database queries that are used by database engine  404  to search customer  1 &#39;s electronic database  401 . Any embodiment of the present invention, however, is not limited to any of the database formats listed above or to any specific database format. 
   At step  805 , the system may prompt the user to describe the hierarchy of the data records within the electronic database. The user may describe the hierarchy of the database using access device  115  over Internet  100  or communication network  150 . The user may describe the hierarchy by, for example, entering descriptive information for each logical grouping of data records with the database in a text field, clicking on an icon, or using any other suitable graphical interface element. At step  807 , the system may receive the hierarchy description of the data records within the electronic database from the user over Internet  100  or communication network  150 . 
   At step  810 , the system may generate a mapping function that describes the hierarchy of the electronic database. The mapping function may describe all the logical groupings of data records contained in the electronic database. The logical groupings may include all directories and sub-directories contained within the electronic database. 
   At step  815 , the system may prompt the user to define the user interface for the parametric search. The user may define the user interface by, for example, entering text in an input field, clicking on a button or icon associated with a feature of the user interface, marking a check box, or using any other suitable graphical interface element. At step  817 , the system may receive the user interface definitions for the parametric searches from the user over Internet  100  or communication network  150 . 
   At step  820 , the system may generate a data definition file that contains the user&#39;s selections for configuring the user-interface. At step  825 , the system may prompt the end-user to initiate a parametric search by using a user-interface that may be defined by the data definition file. The end-user may initiate a parametric search by, for example, entering a product parameter in a text field, clicking on a link, button or icon associated with a parametric search, marking a check box, or using any other suitable graphical interface element. 
   At step  830 , the system may perform a parametric search that was initiated by the end-user and may return the results of that parametric search to the end-user at step  840 . The results of the parametric search may be displayed to the end-user using any suitable method, such as, for example, text, graphics, video, audio, any other suitable method, or any suitable combination thereof. 
     FIG. 9  is a more detailed flowchart of illustrative steps involved in performing parametric database searches in accordance with one embodiment of the present invention. 
   At step  950 , the system (e.g., Internet and application server  110 ) executes a web tool (such as web tool  407 ). Web tool  407  is a computer application that generates a mapping function between the hierarchical arrangement of data records within an electronic database and search engine  406  of  FIG. 4 . At step  955 , to generate this mapping function, web tool  407  first generates one or more web pages which are transmitted to the end-user&#39;s access device, such as access device  115  using, for example, the HTTP protocol. These web pages may prompt the user to define the hierarchy of the data records within electronic database  401 . The user may use access tool  115  to transmit the requested information back to web tool  407 . At step  960 , after receiving the requested information regarding the hierarchy of the data records within the electronic database, web tool  407  then executes a validation program to insure that the data records, as described by the user, conform to a set of validation rules used by search engine  406 . If the data records conform to these validation rules, web tool  407  then generates the mapping function at step  965 . 
   At step  970 , the system may prompt the user to identify which parameters will be displayed to the end-user of the system at each successive iteration of the parametric search (e.g., by generating web pages that are provided by Internet and application server  110  to the user&#39;s access device). To make the parametric search both user-friendly and effective, this embodiment of the system only displays a limited number of parameters to the end-user during each iteration of the parametric search. The user may identify the parameters that are displayed during each iteration of the parametric search using, for example, access device  115 . 
   The system prompts the user to describe the format in which these parameters will be displayed to an end-user of the system. The system may prompt the user as to the order in which the parameters are listed and the method of presentation for each parameter. User may select between various display options, such as a list box, check box, boolean field (e.g., Yes/NO, On/Off), any other suitable display option or combination of suitable display options. 
   For example, integrated circuits are fabricated in a variety of different packages (e.g. DIP, QCC, PGA, QFP, DMA). At step  970 , the system may prompt the user to identify if product packaging will be a parameter that is displayed to the end-user of the system during the first iteration of the parametric search. If the user answers affirmatively, the system may then prompt the user to describe how the different types of packages are to be displayed to the user, such as using a list box, check box, pull down menu, etc. 
   At step  975 , after the user has selected the display formats, the system may then store the user&#39;s selections in data definition file  405 . This process may be repeated until the user has identified the parameters and their formats for each iteration of the parametric search. 
   At step  980 , after data definition file  405  has been created, the system may generate web pages to prompt the end-user to begin a parametric search by selecting a category of products within electronic database  401  to search. The end-user may select a category, such as microprocessors. 
   The system may perform the requested parametric search for the selected category at step  985 . For example, Internet and application server  110  may query database engine  404  for all records within that category of electronic database  401 . Internet and application server  110  may then instruct database engine  404  to retrieve the requested records. Database engine  404  may then transmit the records to Internet and application server  110 . Internet and application server  110  may then count the number of records retrieved. 
   The system may then access the data definition file to determine the parameters that the user selected for the first iteration of the parametric search and may display those parameters to the end-user on access device  115 . The end-user of the system may then select the parameters of interest to him. The end-user also may select a value for each selected parameter from a predefined list of values or the end-user may type a value or range of values for each selected parameter. The end-user may then transmit this information to Internet and application server  110  using access device  115 . Internet and application server  110  may then query database engine  404  for all records within the electronic database that satisfy the search criteria inputted by the end-user. Internet and application server  110  may then instruct database engine  404  to retrieve the requested records. Database engine  404  may then transmit the records to Internet and application server  110 . Internet and application server  110  may then count the number of records retrieved. 
   At step  990 , the system may display the results of the parametric search to the end-user. For example, Internet and application server  110  may transmit the number of records that satisfied the end-user&#39;s search request and access device  115  may display the parameters that the database administrator selected for the second iteration of the parametric search at step  815  of  FIG. 8 . 
   At step  995 , if the number of records that satisfied the end-user&#39;s search request is less than a first predefined value (e.g. 100), the system may provide the end-user with the option of viewing the results of that search. If the end-user elects to view the results, the system may provide a list of the products that satisfied the end-user&#39;s search criteria. These products may be displayed, for example, by the end-user&#39;s access device  115 . The end-user may then select a specific product from the list to obtain further information regarding that product. 
   At step  996 , if the number of records in the search results is less than a second predefined number (e.g. 10), the system may provide the end-user with the option of viewing a comparison of those products in a side-by-side format or any other suitable comparison format. If the end-user elects to view a side-by-side comparison of those products, the system may provide the comparison, for example, to the end-user&#39;s access device  115  at step  997 . 
   When the end-user elects not to view the results at step  995  and step  996 , the system may return the end-user to step  985  in order to refine the end-user&#39;s parametric search further. At step  985 , the end-user selects additional parameters of interest and selects or types a value or range of values for each selected parameter and the process repeats. 
     FIG. 10  is a more detailed flowchart of the steps in accordance with one embodiment of the present invention that are involved in step  805  of  FIG. 8 . The steps shown in  FIG. 10  are illustrative and may be combined or performed in any suitable order. 
   At step  1000 , the system may prompt the user to define a new electronic database. The user may define the new database using access device  115  over Internet  100  or communication network  150 . The user may define the electronic database by, for example, entering information in a text field, clicking on a button or an icon associated with a new database, marking a click box for a new directory, or using any other suitable graphical user element. 
   At step  1005 , the system may prompt the user to define any hierarchical groupings of data records within the database. For example, the user may describe the hierarchical grouping of data records to Internet and application server  110  using access device  115  over Internet  100  or communication network  150 . The hierarchical grouping may include all directories of data records within the electronic database. The user may define the groups by, for example, entering text in an input field, clicking on a button or icon associated with a new group, marking a check box for a new group, or using any other suitable graphical user interface. 
   At step  1010 , the system may prompt the user to determine if any groups within the electronic database have hierarchical sub-groups. If there are such sub-groupings, at step  1015 , the system may prompt the user to define the sub-groupings within the database. For example, the user may describe the sub-groupings within the database using access device  115  over Internet  100  or communication network  150 . The sub-groupings may include all sub-directories within the directories of the electronic database. This may be an iterative process if the electronic database has multiple layers of sub-groups. The user may define the sub-groups by, for example, entering text in an input field, clicking on a button or icon associated with a new sub-group, marking a check box for a new sub-group, or using any other suitable graphical user interface. 
   At step  1020 , the system may prompt the user to determine if all sub-groups within the electronic database have been defined. If there are still sub-groups to be defined the processing returns to step  1015 . If all the groups and sub-groups have been defined, at step  1025 , the system verifies or validates the hierarchical information provided by the database administrator. If the hierarchical information conforms to the database format being used by the user, then the hierarchical information is accepted by the system. 
     FIG. 11  is a generalized flowchart of illustrative steps involved in performing a parametric search (i.e. step  830  of  FIG. 8 ) on an electronic database in accordance with one embodiment of the present invention. 
   At step  1100 , the system may prompt the end-user to select an electronic database to search. The system prompts the end-user by providing an interactive display to the end-user. The interactive display may be a web page, an application display, a pop-up or any other suitable display, or combination of suitable displays. 
   At step  1101 , the system may prompt the user to select a category of products within the electronic database to search. The end-user may select a category of products by, for example, entering the name of a category in an input field, clicking on a link, button or icon associated with the category, marking a check box, or using any other suitable approach, or combination of suitable approaches. 
   At step  1102 , the system queries the electronic database for all records within the selected category. The system may construct a database query that is suitable for the database engine that maintains the electronic database that is to be searched. The electronic database and its database engine may reside on the same computer system as the system, may reside on a remote system or may be distributed on several systems. In embodiments in which the electronic database engine resides on a remote system, the system may query the remote database by making remote calls to the database engine on whatever remote system that it may reside. 
   At step  1103 , the system may provide to the end-user a selection of parameters that may be used in a parametric search. The system may display the parameters to the end-user using any suitable content. The parameters may be presented using, for example, text, graphics, video, audio, animations, tactile content, olfactory content, other suitable presentations, or any suitable combination thereof. 
   At step  1104 , the system may prompt the end-user to select the search parameters. The end-user may select parameters by, for example, entering the name of a parameter in an input field, clicking on a link, button or icon associated with a parameter, marking a check box, or using any other suitable approach, or combination of suitable approaches. 
   At step  1105 , the system may query the electronic database for all records within the selected category that contain the selected parameters. The system may construct a database query that is suitable for whatever type of database engine that is maintaining the electronic database. The electronic database and its database engine may reside on the same computer system as the system, may reside on a remote system or may be distributed on several computer systems. In embodiments in which the electronic database engine resides on a remote system, the system may query the remote database by making remote calls to the database engine on whatever remote system that the database engine may reside. 
   At step  1106 , the system may display to the end-user the results of the parametric search. The system may display using any suitable method the number of products or a listing of the products that satisfied the search parameters of the end-user. The results may be presented using, for example, text, graphics, video, audio, animations, tactile content, olfactory content, other suitable presentations, or any suitable combination thereof. 
   At step  1107 , the end-user may continue the parametric search by selecting additional parameters to refine the search further. The end-user may continue the parametric search by, for example, clicking on a link, button or icon, marking a check box, or using any other suitable approach. If the end-user elects to continue the parametric search, the processing returns to step  1103 . 
   If the user elects not to continue the parametric search, at step  1108 , the system may prompt the end-user to select a product from the results that were presented to the end-user in step  1106 . The system may prompt the user by presenting the products to the end-user using any suitable method. The results may be presented using, for example, text, graphics, video, audio, animations, tactile content, olfactory content, other suitable presentations, or any suitable combination thereof. The end-user may select the product or products by, for example, entering the name of the product or products in an input field, clicking on a link, button or icon associated with a product or products, marking a check box, or using any other suitable approach, or combination of suitable approaches. 
   At step  1109 , the system may display product information on any of the products that were selected by the end-user. The system may display the product information using any suitable method. The product information may be presented using, for example, text, graphics, video, audio, animations, tactile content, olfactory content, other suitable presentations, or any suitable combination thereof. 
     FIGS. 12A and 12B  are more detailed flowcharts of steps involved in step  830  of  FIG. 8 . At step  1210 , the system prompts an end-user to select a product database. An end-user may initiate client application  520  to retrieve a web page, an application display, a pop-up or any other suitable display from Internet and application server  110 . The retrieved web page, for example, may describe the contents of electronic database  401  to the end-user. For example, the web page may display on the end-user&#39;s access device  115  the different subcategories of electronic database  401 . Each displayed subcategory on the web page may be, for example, a HyperText link. The web page may prompt the user to select any one of the listed subcategories by clicking on the HyperText link, clicking on a button or icon associated with the subcategory or using any other suitable method for selecting the subcategory. The web page may also provide the end-user with the option of immediately selecting a specific product, instead of selecting a subcategory. If an end-user has already identified a product and only wishes to obtain detailed information about that product, the web page may prompt the user, for example, to type in some identifying information regarding that product, such as a part number. After the end-user inputs the identifying information, client application  520  may transmit the information to Internet and application server  110 , which then may query database engine  404  to retrieve the requested data record. Internet and application server  110  may then transmit the record to the user&#39;s access device  115 . 
   By way of illustration, and not for purposes of limitation, the following description will describe client application  520  using the option in which an end-user selects one of the displayed subcategories of electronic database  401  to initiate a parametric search. At step  1211 , the system may prompt the end-user  410  to select a subcategory within electronic database  401 . Client application  520  may transmit this selection to the system using, for example, HTTP. The system may then receive the category selection information from client application  520 . At step  1212 , the system may then query database engine  404  to retrieve all records within electronic database  401  that are contained in the selected subcategory. 
   At step  1215 , the system may count the number of records in the chosen subcategory by, for example, executing an ASP. At step  1220 , the system may query data definition file  405  to determine which parameters from those data records are to be displayed to the end-user and used as search parameters. At step  1225 , the system may transmit to the end-user&#39;s access device  115 , for example in HTML format, the number of records in the subcategory and the parameters that are searchable during this iteration of the parametric search. 
   At step  1230 , the end-user may select the parameters from the searchable parameters that are of interest to him. The end-user may then select values for those parameters that are appropriate to the parametric search. Parameter values may be predefined and selected by the end-user from pull-down menus, list boxes, check boxes, radio buttons, any other suitable display format or combination of display formats. Parameter values may also be selected by the end-user, for example, by typing in a value or a range of values for each parameter. Client application  520  may then transmit the parameters and parameter values selected by the end-user to the system. It may be useful to have the end-user select parameter values from a pull-down menu or a list box as opposed to typing in values. Some embodiments of the present invention may only display values of parameters in its pull-down menus or list boxes that are contained in the subcategory. A parameter value provided by the end-user may not correspond with any records in the subcategory. Accordingly, a “typed-in” parameter value may cause the parametric search to produce no records that match the requirements of the end-user. 
   The system receives the category selection information from client application  520 . At step  1235 , the system may then query database engine  404  to retrieve all records within electronic database  401  that contain the selected parameters and the selected parameter values. Database engine  404  may transmit the records to the system. At step  1240 , the system may execute an ASP to count the number of records in the chosen subcategory. At step  1245 , the system may query the data definition file  405  to determine which fields from those records are to be displayed to the end-user and used as search parameters. 
   At step  1250 , the web server may compare the count generated by the ASP with a first predefined number (e.g. 100). If the count is greater than the first predefined number, the system may transmit to the end-user&#39;s access device  115 , for example in HTML format, the number of records and the fields in those records that are searchable during the next iteration of the parametric search. At this point, the processing of the system may loop back to step  1230 . If the count is less than the first predefined number at step  1255 , the web server may transmit to the user&#39;s access device  115 , for example in HTML format, the number of records and the fields in those records that are searchable as well as an option to view the results of the search. At step  1265 , the system may prompt the end-user as to whether the end-user wishes to view the results. If the end-user selects no, then the processing of the system may loop back to step  1230 . If the end-user selects yes, at step  1270  the system may compare the count generated by the ASP with a second predefined number (e.g. 10). If the count is greater than the second predefined number, the web server at step  1290  may access data definition file  405  to determine which fields in the search results are to be displayed to the end-user. At step  1295 , the system transmits the results to the end-user&#39;s access device  115  in a format that may be dictated by the data definition file. If the count is less than the second predefined number, the system at step  1275  may prompt the end-user as to whether the end-user wishes to view the results in a comparison format, such as, for example, a side-by-side comparison. If the end-user selects no, then the processing continues at step  1290 . If the end-user selects yes, then the system at step  1280  may access data definition file  405  to determine which fields in the search results may be displayed to the end-user in a side-by-side comparison or in any other suitable display format. At step  1285 , the system may transmit the results to the end-user&#39;s access device  115  in the format that may be dictated by data definition file  405 . 
     FIGS. 13 through 41  show illustrative displays for providing various features of some embodiments of the present invention. The displays may include any suitable content such as text, graphics, audio, video, animation, other suitable content, or a suitable combination thereof. The displays of  FIGS. 13 through 41  may be web pages or any other display suitable to the chosen system implementation, such as application displays, pop-ups, or other suitable displays. 
   Displays, such as those shown in  FIGS. 13 through 41 , may provide users with access to features of the system using any interface construct suitable for the chosen system implementation. Suitable interface constructs may include, for example, graphical interface elements. Suitable graphical interface elements may include, for example, push buttons, check boxes, radio buttons, scroll bars, drop-down menus or lists, input fields or text boxes, links, or any other graphical interface element suitable to the chosen access device  115  or personal computer  120 . Audio interface constructs may also be used if desired. System features may include, for example, a library manager, a metrics manager, help information, or any other suitable information. 
   An illustrative embodiment of step  805  of  FIG. 8  in which a user may define the hierarchical relationship of the data records within an electronic database using web tool  407 , for example, is shown in  FIGS. 9 through 20 . 
     FIG. 13  is an embodiment of a display that may be retrieved from the system and displayed to the user.  FIG. 13  may prompt the user to provide the name of the user&#39;s company by entering information in text field  1301 , by voice input, or by any other suitable method. Web tool  407  may also prompt the user to provide a description and name for the electronic database by entering information in text fields  1302  and  1303 , respectively, by voice input, or by any other suitable method. In  FIG. 14 , the user has provided “Customer  1 ” in field  1401 ; “electronic components” in field  1402 ; and “electronic components” in field  1403 . At this point, the user may select the “Submit” field  1404 , may select the “enter” key or may use any other suitable method to transmit this information to web tool  407  using access device  115 . 
   In this example, in response to the “Submit” command of  FIG. 14 , web tool  407  may provide the user with a new display, which is shown in  FIG. 15 .  FIG. 15  may display the information just provided by the user in fields  1501  through  1503 .  FIG. 15  may also display icon  1504 , or any other graphical user interface, for customer  1 . Web tool  407  may allow a user to view all databases that have been defined for customer  1  by, for example, selecting icon  1505 . In this example, in response to the user&#39;s selection of icon  1505 , web tool  407  may retrieve a new display for the user. In this example, this new display, which is shown in  FIG. 16 , contains all the databases that have been defined for customer  1 . For example,  FIG. 16  displays that only the “electronic components” database, shown in field  1601 , has been defined. 
   At this point, a user may define any hierarchical structure within the “electronic components” database. In this example, selecting “New Group” field  1602  causes web tool  407  to display  FIG. 17 , or any other suitable display, to the user. In  FIG. 17 , web tool  407  may prompt the user to provide, for example, a name and description for the first group within the “electronics component” database by entering information in text fields  1701  and  1702 , respectively, or by entering information using any other suitable method. In  FIG. 18 , the user has provided “memory” in field  1801 ; and “memory devices” in field  1802 . At this point, the user may select the “Submit” field  1803 , the “enter” key or another suitable method to transmit this information to web tool  407  using access device  115 . 
   In this example, in response to the “Submit” command of  FIG. 18 , web tool  407  may provide a new display to the user as shown in  FIG. 19 .  FIG. 19  may display the information just provided by the user in fields  1901  and  1902 .  FIG. 19  may also display icons  1903  through  1905 , or any other suitable graphical interface elements, to show the hierarchical structure of the electronic components database. This process of defining sub-groups may continue until the user has completely defined the entire hierarchy of the data records within the electronic components database. In this example,  FIG. 20  shows an electronics components database that contains 5 subgroups: memory  2001 ; diode  2002 ; A/D  2003 ; D/A  2004 ; and microprocessor  2005 . 
   An illustrative embodiment of step  815  of  FIG. 8  in which a user may define the user interface for the parametric search is shown in  FIGS. 21 through 28 . 
     FIG. 21  is an example of an embodiment of a display that may be retrieved from Internet and application server  110  and displayed to the user on access device  115 . In  FIG. 21 , web tool  407  may prompt the user to provide the display characteristics for a parameter that may be used in a parametric search.  FIG. 21  may display a wide variety of options for formatting the user interface of the parametric search engine. For example, Visibility field  2101  may allow the user to specify which iterations of the search will contain this parameter as a searchable parameter. For example, the parameter may be “Hidden,” “Searchable on the initial screen”, “Searchable on subsequent screens” or “Displayed but not used in the parametric search.” In another example, Presentation field  2102  may allow the user to specify how the range of values for this parameter may be displayed to the end-user. For example, the values may be shown in a “List Box,” “Drop Down,” “Check Box” or any other suitable graphical interface element. In a further example, Boolean Display field  2103  may allow the user to specify how boolean values, if applicable, are displayed to the end-user. For example, the boolean values may be expressed as “Yes/NO,” “True/False,” “On/Off” or any other suitable boolean expression. 
   In this example,  FIG. 21  displays the settings that a user selected for a “Temperature Range” parameter. This Temperature Range parameter may be used, for example, in a parametric search for a microprocessor. In  FIG. 21 , Presentation field  2102  has been selected as a “Check Box.”  FIG. 22  displays the initial display of a parametric search for a microprocessor that used the setting for Temperature Range that were shown in  FIG. 21 . The values for the Temperature Range field  2201  are displayed in check box format. 
   In this embodiment of the present invention, the user may change the user interface at any time by executing web tool  407  and then executing the “Edit” parameters function  1703  (shown in  FIG. 17 ) within web tool  407 . As shown in the example of  FIG. 23 , the user has changed the Presentation field  2301  value from a “Check Box” to a “List Box.” After making this alteration, the user may select, for example, the “Submit” field  2302  to execute the changes. In response to the submit command, web tool  407  may update database definition file  405 , which causes the initial display for a microprocessor parametric search to be provided as shown in  FIG. 24 .  FIG. 24  shows the Temperature Range field  2401  as a list box instead of a check box. 
   This process of altering the user interface for the parametric search engine may be performed on any parameter.  FIG. 25  shows the settings for a Ext. Data Bus (Bits) parameter that is used in a parametric search for a microprocessor in accordance with this embodiment of the present invention. Visibility field  2501  of  FIG. 25  may be selected to be “Searchable on initial screen.”  FIG. 26  shows the initial display (i.e. screen) for this parametric search and Ext. Data Bus (Bits) field  2602  is visible and searchable on this screen. Again, in this example, the user may alter the user interface show in  FIG. 26  by invoking web tool  407  and executing Edit parameter function  1703 . In this example,  FIG. 27  shows the display for editing the display characteristics of the Ext. data Bus (Bits) parameter. As shown in  FIG. 27 , Visibility field  2701  may be selected to be “Hidden.” The user may select “Submit” field  2702 , the enter key or any other suitable command, to execute this change. The results of this change is shown in  FIG. 28 , which shows that the Ext. Data Bus (Bits) has been removed from the initial display of a parametric search for a microprocessor. 
   An illustrative embodiment of the present invention that performs a parametric search of an integrated circuits product catalogue is shown in  FIGS. 29 through 41 . 
     FIG. 29  is an example of an embodiment of a display that may be retrieved from Internet and application server  110  and provided to end-user on the end-user&#39;s access device  115 .  FIG. 29  describes the contents of the integrated circuits product catalogue that may be searched in accordance with one embodiment of the present invention. In this example, each underlined term in  FIG. 29  may be a HyperText link that represents a sub-category of the integrated circuits database. For example, “Chip Sets”  2901 , “Gate Array”  2902  and “Microprocessors/Microcontrollers”  2903  are subcategories of the integrated circuits product catalogue. If desired, sub-categories may also be selected using push buttons, check boxes, pull-down menus or any other suitable graphical interface element. 
     FIG. 29  also has a “Find It”  2904  feature which may allow the end-user to type in, for example, a specific part number to immediately retrieve information relating to that part number. This feature does not perform a parametric search but rather performs a table look-up search for the specified part number. By way of illustration, and not for purposes of limitation,  FIGS. 29 through 41  will describe an embodiment of the present invention using the option in which an end-user selects one of the displayed subcategories of integrated circuits to initiate the parametric search. 
   In  FIG. 29 , the end-user may initiate the parametric search by selecting the “Microprocessors/Microcontrollers”  2903  HyperText link, or any other suitable graphical interface element. In response to the user&#39;s selection of “Microprocessors/Microcontrollers”  2903 , Internet and application server  110  may provide the end-user with a new display, which is shown in  FIG. 30 .  FIG. 30  displays, in the “Number Found”  3001  field, the total number of microprocessors and microcontrollers that are contained in the integrated circuits database. In this example, the parametric search resulted in 5,610 microprocessors and microcontrollers. Fields  3002 – 3010  may represent the parameters that the user selected as the parameters that are searchable during the first iteration of the parametric search. There are additional parameters that may be searched, but the user selected these as the most useful to begin the parametric search. In this example, each of the fields  3002 – 3010  may be divided into two columns. In the first column, the name of the parameter may appear. In the second column, searchable values for those parameters may be shown. 
   To continue the parametric search, the end-user may select any number of parameters and any number of parameter values as shown in  FIG. 31 . In  FIG. 31 , the end-user has selected “Temperature Range”  3101  to be “Mil” and “Category”  3102  to be “Microprocessors.” These selections may be indicated with a check mark as shown in  FIG. 31  or may be indicated by any other suitable display method. At this point, the end-user may select the “Search” field  3103  which causes client application  520  to transmits these selections to Internet and application server  110 . In response to the end-user&#39;s selections of “Temperature Range”  3101  and “Category”  3102 , the system may provide the end-user with a new display, which is shown in  FIGS. 32A and 32B .  FIGS. 32A and 32B  display the total number of microprocessors in the integrated circuits database that satisfied the selected search criteria. This number is shown in the “Number Found”  3201  field. In this example, the parametric search resulted in  78  microprocessors. Fields  3202 – 3224  may represent the parameters that the user selected as the parameters that are searchable during the second iteration of the parametric search.  FIGS. 32A and 32B  may also indicate to the end-user all the parameters and corresponding values that the end-user has selected during this search. In  FIGS. 32A and 32B , this is shown in fields  3204  and  3207  with check marks, but may be shown using any other suitable display format. In  FIGS. 32A and 32B , a “View List of Devices”  3225  field is also shown. This indicates to the end-user that 78 microprocessors is less than the first predefined number chosen by the user. As a result, the end-user may view all 78 records at this point in the search. By way of illustration, and not for purposes of limitation, in  FIGS. 33 through 41 , the end-user will continue to refine the parametric search. 
   To continue with the second iteration of the parametric search, the end-user may select any number of parameters and any number of parameter values as shown in  FIGS. 33A and 33B . In  FIGS. 33A and 33B , the end-user has selected “Ext. Data Bus (Bits)”  3301  to be “32”, “Int. Data Bus (Bits)”  3302  to be “32” and “Process Technology”  3303  to be “CMOS.” These selections are indicated with check marks in  FIGS. 33A and 33B . At this point, the end-user may select the “Search”  3304  field which causes client application  520  to transmits these selections to the system. In response to the end-user&#39;s selections of “Ext. Data Bus (Bits)”  3301 , “Int. Data Bus (Bits)”  3302  and “Process Technology”  3303 , the system may provide the end-user with a new display which is shown in  FIGS. 34A and 34B .  FIGS. 34A and 34B  display the total number of microprocessors in the integrated circuits database that satisfied the selected search criteria. This number is shown in the “Number Found”  3401  field. In this embodiment, the parametric search resulted in 21 microprocessors. Fields  3402 – 3422  may represent the parameters that the user selected as the parameters that are searchable during the third iteration of the parametric search.  FIGS. 34A and 34B  also may indicate to the end-user all the parameters and corresponding values that the end-user has selected during this parametric search. In  FIGS. 34A and 34B , this is shown in fields  3404 ,  3407 ,  3408 ,  3409 , and  3412  with check marks, but may be shown using any other suitable display format. 
   To continue with the third iteration of the parametric search, the end-user may select any number of parameters and any number of parameter values as shown in  FIGS. 35A and 35B . In  FIGS. 35A and 35B , the end-user has selected the “Instruction Length”  3501  to be  32 . This selection may be indicated with any suitable display format. At this point, the end-user may select the “Search”  3502  field which causes client application  520  to transmits these selection to the system. In response to the end-user&#39;s selection of “Instruction Length”  3501 , the system may provide the end-user with a new display, which is shown in  FIGS. 36A and 36B .  FIGS. 36A and 36B  display the total number of microprocessors in the integrated circuits database that satisfy the selected search criteria. This number is shown in the “Number Found”  3601  field. In this example, the parametric search resulted in 6 microprocessors. Fields  3602 – 3620  may represent the parameters that the user selected as the parameters that are searchable during the fourth iteration of the parametric search.  FIGS. 36A and 36B  also indicate to the end-user all the parameters and corresponding values that the end-user has selected during this search. In  FIGS. 36A and 36B , this is shown in fields  3604 ,  3606 ,  3607 ,  3608  and  3611  with check marks. In  FIG. 36 , a “Compare Results”  3622  field is also shown. This indicates to the end-user that 6 microprocessors is less than the second predefined number chosen by the user. As a result, the end-user may view in a side-by-side comparison, or any other type of comparison format, the 6 records at this point in the search. 
     FIGS. 37A ,  37 B and  38  show the displays involved in the fourth iteration of the parametric search.  FIG. 38  displays the total number of microprocessors in the integrated circuits database that satisfy the selected search criteria. This number is shown in the “Number Found”  3801  field. In this embodiment, the parametric search resulted in 2 microprocessors. At this point, the end-user may wish to view the results of the search by selecting the “View List Of Devices”  3802  field, or executing any other appropriate command. In response to this selection, the system may provide a display that lists the devices as shown in  FIG. 39 .  FIG. 39  lists both the manufacturer  3901  and the part number  3902  associated with each device that satisfied the end-user&#39;s parametric search. The end-user may then select any listed manufacturer or part number for even further details. For example, if the user selects “Advanced Micro” in  FIG. 39 , the system may provide  FIG. 40  which lists contact information regarding Advanced Micro Devices, Inc. Instead of viewing the results of the parametric search in this format, the end-user may wish to view a side by side comparison of the search results by selecting “Compare Results” field  3803  in  FIG. 38 . In response to this selection, the system may provide a web page displaying a side-by-side comparison of the parts as shown in  FIG. 41 . If the end-user wants further information on any of the listed parts, the end-user may select field  4101 , field  4102  or any other suitable field for more details about the listed parts. 
   While many of the features of the system have been described in connection with a parametric search of an integrated circuits product catalogue, the features may be provided in connection with a parametric search of other types of products (e.g., automobile parts, pharmaceutical products, construction materials, or any other suitable products or combination of products). One skilled in the art will appreciate that the present invention can be practiced by other than the described embodiments, which are presented for purposes of illustration and not of limitation, and the present invention is limited only by the claims which follow.