Abstract:
A system and method are provided to examine a changeable monitored document and to provide alerts relating to changes of interest. The logical entities of a monitored document are compared, when changed, to the logical entities of an updatable reference of the monitored document which comprises material from the monitored document at a given time. The system distinguishes between logical entities which have moved within a document and logical entities which have been changed in a document. A user or users are alerted to any change in the monitored document according to the user&#39;s preferences. The system also allows the user to specify one or more search terms, thereby allowing a user to receive alerts only when a specified search term or terms appear in a newly changed portion of the monitored document. After examination, an extracted copy of the monitored document is retained as the editable reference.

Description:
COPYRIGHT AND LEGAL NOTICES 
     A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyrights whatsoever. 
     BACKGROUND OF THE INVENTION 
     Data or a document may be changed over time, or from one version to another, etc. The invention disclosed herein relates to computerized data examination, e.g., data within a document, for one or more changes, and to other action depending upon the results of the examination. 
     SUMMARY OF THE INVENTION 
     Embodiments of the invention provide for computerized data examination for one or more changes, and for other action depending upon the results of the examination. 
     For example, an embodiment of the invention comprises a computerized system and/or a method for examining data, which, in this embodiment, is represented by electronic documents, for one or more changes. Electronic documents are meant herein in a broad sense and may encompass many types of documents, including files and other structures for storage and presentation of various types of data in electronic form, including text documents and graphic documents, whether created electronically or converted into electronic form. Examining an electronic document is also meant herein in a broad sense and may encompass monitoring, analysis, comparison and other operations or processing. 
     Embodiments of the invention may examine a document which is subject to change for changes in any suitable way. According to one embodiment, two documents are electronically compared. One document may be considered a reference against which the other document which is subject to change is compared for changes. 
     In accordance with an embodiment of the invention, documents are examined for the occurrence of one or more differences, e.g., a change or changes such as modification, addition, deletion, moving, etc. 
     In accordance with an embodiment of the invention, documents are examined for the occurrence of such a difference or differences which include a given term or terms. A document may be examined for the occurrence of the particular term or terms, e.g., a search term or terms, anywhere in the document or only in part of the document, e.g., a changed part. 
     In accordance with an embodiment of the invention, a user selects a document subject to change for monitoring and defines at least one monitoring parameter, e.g., the duration of monitoring, an alert frequency or frequencies, formats, system output parameter(s), and, if desired, one or more search terms. 
     In accordance with an embodiment of the invention, a selected document subject to change (“monitored document”) is stored as an updatable or an editable reference of the monitored document (“updatable reference”) with which the monitored document will be compared for future differences. At this point, the updatable reference includes the material in the monitored document that is to be monitored. For example, the updatable reference may include additional data, e.g., meta data such as tags. At a later time, when the monitored document may have undergone change, the monitored document and the updatable reference are compared to determine whether any changes have occurred to the monitored document. Any changes or selected changes included in the monitored document are made to the updatable reference, i.e., the updatable reference is edited or changed to reflect any such changes so that the updatable reference again includes all of the material to be monitored in the monitored document. 
     The terms monitored document and updatable reference have been selected and are used for ease and clarity of description. While the monitored document is subject to change, e.g., independent of the updatable reference, and may be considered editable, the updatable reference is updated or edited based on the condition of the monitored document. 
     According to an embodiment of the invention, all prior material in the updatable reference is retained after changes have been made thereto, so that the updatable reference includes material representing all versions of the monitored document. This enables any version of the monitored document to be created from the latest updatable reference. 
     In accordance with an embodiment of the invention, the document examination system stores the latest updatable reference, which e.g., includes material representing all versions of the monitored document, in a database. 
     In accordance with another embodiment of the invention, as opposed to storing only the latest updatable reference, raw information is extracted from the monitored document and stored in an updatable reference that receives such raw information when examination indicates that the monitored document has changed. The extraction may comprise any method or combination of methods such as web crawling, flat file parsing, natural language processing, or screen scraping. 
     In accordance with an embodiment of the invention, the web crawling, flat file parsing, and natural language processing extraction methods, or other extraction methods, may detect relationships between data elements which can serve as syntactic and structural cues. 
     In accordance with an embodiment of the invention, the raw information extracted from the monitored document is converted into a desired format, for example, a unified XML format, and stored as the updatable reference. In accordance with an embodiment of the invention, logical entities of the monitored document are included in the stored updatable reference, and at a later time, logical entities of the monitored document and of the updatable reference thereof are compared for changes. 
     In accordance with an embodiment of the invention, within a monitoring duration and at preprogrammed intervals, logical entities of the monitored document, and logical entities of the updatable reference are compared. If the system identifies one or more differences between the logical entities of the two documents, the updatable reference is edited to include the identified differences. In accordance with an embodiment of the invention, each edit of the updatable reference is tagged with a revision identification tag. For example, an insertion may be represented with an “&lt;i&gt;” identification tag, while a deletion may be represented with a “&lt;d&gt;” identification tag. 
     In accordance with an embodiment of the invention, analysis determines if the edits applied to the updatable reference are actual changes to logical entities or are instead logical entities which have simply moved, or “drifted,” in position (“drift”) 
     In accordance with an embodiment of the invention, if the system does not identify drift, an alert operation commences to alert a user of the change. 
     In accordance with an alternative embodiment of the invention, if the system does not identify drift, the change in the logical entities is searched for the one or more search terms defined or selected by a user, allowing for the ability to alert users only when there is a change relating to the one or more search terms. 
     According to an embodiment of the invention, various output documents may be provided for display. An output document may be constructed from an updatable reference document and may include material representing one or more of: a complete reconstruction of the monitored document with all changes thereto after the given time; additions to the monitored document after the given time; deletions to the monitored document after the given time; and material representing modifications of the monitored document after the given time. Also, an output document may be provided representing an entire changed document without markup, the entire changed document with changes marked or highlighted, only the changed portions of the changed document, only additions, only deletions, only formatting changes, only certain types of modifications, or any combination of the above. 
     According to embodiments of the invention different output view options for display of an output document may be specified by a user, i.e., the particular form of the output document is user selectable. For example, output options may include selection of one or more of the output documents described herein. 
     According to embodiments of the invention, an automated data processing system is provided comprising a memory configured to store data, documents and/or references described herein, and at least one processor (or at least one computer) configured to carry out functionality described herein. 
     According to embodiments of the invention, a computer readable medium is provided which stored computer code that causes at least one processor (or at least one computer) to carry out the functionality described herein. The at least one processor or computer may comprise a server computer, a client computer or both. 
     According to one application of the invention, the monitored document, a court docket sheet, is examined. For example, a court docket sheet may be electronically stored in a data store as a monitored document that is accessible to a computerized system and method. The electronically stored docket sheet may be made available by court or a service. Computerized systems and methods according to embodiments of the invention access the docket sheet (the monitored document) at a given time and store logical entities of the docket sheet and/or data relating to the docket sheet as the updatable reference. Such systems and methods access the docket sheet (monitored document) after the given time and perform the process(es), described herein. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention is illustrated in the figures of the accompanying drawings, which are meant to be exemplary and not limiting, and in which like references are intended to refer to like or corresponding things. 
         FIG. 1  is a block diagram of a computer network such as may be used in an embodiment of the invention. 
         FIG. 2  is a block diagram of a computer system such as may be used in an embodiment of the invention. 
         FIG. 3  is a flowchart of defining document examination parameters, according to an embodiment of the invention. 
         FIG. 4  is a flowchart of extracting, converting, and archiving data from a monitored document, according to an embodiment of the invention. 
         FIG. 5  is a flowchart of a document examination system where a search term is not used, according to an embodiment of the invention. 
         FIG. 6  is a flowchart of a document examination system where a search term is used, according to an embodiment of the invention. 
         FIG. 7  depicts a graphical user interface such as may appear on an electronic display device to prompt a user to specify a document alert, according to an embodiment of the invention. 
         FIG. 8  depicts a graphical user interface such as may appear on an electronic display device to allow a user to adjust viewing options of a document, according to an embodiment of the invention. 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  illustrates a computer network such as may be used in an embodiment of the invention. The network includes a data source  100 , document examination system  104 , database management system (DBMS)  102 , communication network  106 , and one or more user stations  108 ,  110 , and  112 . The document examination system  104  interfaces with communication network  106  for communicating with the data source  100  and the user stations  108 ,  110 , and  112 . The document examination system  104  interfaces with DBMS  102 , allowing information to be supplied to and retrieved from DBMS  102 . Communication network  106  may be any suitable network for communicating and exchanging information between and/or among the elements represented in  FIG. 1 , including the Internet, local area network (LAN), wide area network (WAN), a wireless network, an intranet, a private network, a public network, a switched network, an enterprise network, a virtual private network, or other networks. 
     Data source  100  is a source of information that comprises one or more monitored documents. For example, it could be a DBMS, workflow management system, or content management system, e.g., a blog. According to an embodiment of the invention, data source  100  may be an electronic provider of court dockets. 
     At a first time, the document examination system  104 , through the communication network  106 , reads a monitored document from data source  100  and stores an extracted copy as an updatable reference in DBMS  102 . At a second time, the document examination system extracts the monitored document in data source  100 , which may or may not have been changed, through communication network  106  and compares it to the latest updatable reference stored in DBMS  102 . The document examination system  104  determines if there is a change between the monitored document, read at a second time, and the latest updatable reference previously stored in DBMS  102 . If there is a change between these documents, an alert may be launched by the document examination system  104 , through the communication network  106 , to a predefined user or user stations  108 ,  110 , and  112 , as described below. 
       FIG. 2  illustrates a computer system such as may be used in an embodiment of the invention. The computer system includes at least one processor  216  that communicates with one or more peripheral devices via bus  214 . These peripheral devices may include a storage subsystem  200  comprising a memory subsystem  202  and a file storage subsystem  208 , user interface input devices  222 , user interface output devices  212 , and computer media reader  210 . Network interface  218  provides an interface to communication network  224 , while network interface  220  provides an interface to DBMS  226 . Although  FIG. 2  illustrates two network interfaces,  218  and  220 , alternate implementations are possible. 
     User interface output devices  212  include suitable types of devices and ways to output information from the computer system. Likewise, user interface input devices  222  includes suitable types of devices and ways to input information the computer system. Computer media reader  210  includes suitable types of removable media devices. 
     Storage subsystem  200  provides the basic storage functionality of the computer system. For example, it may include the basic data and programs required for proper functionality of the computer system. Further, it may provide a way to temporarily store relevant data such as one or more search terms, document information, user information, and the like, or may serve as a repository for storing several versions of a document. 
     Memory subsystem  202  may include a number of memories including a main random access memory (RAM)  204  for storage of instructions and data during program execution and read only memory (ROM)  206  in which fixed instructions are stored. File storage subsystem  208  provides persistent storage for program and data files, and may include a hard disk drive, a floppy disk drive, a compact disc read only memory (CD-ROM) drive, an optical drive, removable media cartridges, or other types of storage media. One or more of the drives may be located at remote locations on other connected computers. 
     DBMS  226  stores and manages information. Part or all of the functions specified in the file storage subsystem  208  may be shared by DBMS  226 . It may accept requests for data through the network interface  226  and may instruct an operating system to transfer appropriate data. 
     One of ordinary skill in the art would recognize that the computer system depicted in  FIG. 2  may be continuously changing and improving. Thus, the computer system may have other configurations.  FIG. 2  is intended only as an example for the purposes of illustrating a preferred embodiment of the computer system. 
       FIG. 3  is a flowchart of defining parameters for document examination, according to an embodiment of the invention. The flow depicted in  FIG. 3  may be triggered by one or more events such as elapsed time or initiation by a user. 
     In block  300 , a user selects a document to be monitored. Documents may be selected from a multitude of different types such as documents that can be versioned or changed, including court docket sheets or compilations. 
     In block  302 , a user defines the duration of monitoring. This time period may be limited by several factors including a contract period, whether the monitored document is expected to change in the future, specification by a user, and the like. For example, a user may specify a particular document be monitored for a one year period starting on a specific date, thereby limiting the duration of the monitoring service to the specified time period. 
     In block  304 , a user specifies how often a document alert, described in detail below, should occur. In one embodiment, document alerts may be specified at user-determined intervals, such as hourly, daily, or weekly. In another embodiment, the user may choose from pre-determined intervals such as minimum, normal, or maximum. 
     In block  306 , a user specifies a plurality of parameters which relate to the system output. The parameters may comprise the features of the output produced by the system and the type of alert associated with the output. For example, output options may include viewing as an output document an entire monitored document as changed without markup, the entire monitored document with changes marked or highlighted, only the changed portions of the monitored document, only additions, only deletions, only formatting changes, only certain types of modifications, or any combination of the above. The user may choose such output options based on any change in the monitored document or only those changes related to a specific search term within the document. 
     Further in block  306 , the user may define formatting of the output document such as color coding or industry-specific coding. For example, if a section of the document or a search term appears as an addition to the document, the inserted section or term may be colored in green to indicate the insertion in an output document. Similarly, if a section of the document or a search term appears as a change to the document, the changed section or search term may be colored in blue to indicate the change. As another example, if a search term is deleted, the deleted text may be stricken, thereby indicating deleted text. 
     Also in block  306 , the user may define an alert type such as an electronic notification to the user comprising an alert message and/or an electronic link to the output document. 
     In block  308 , the user may enter, if desired, one or more search terms. In the preferred embodiment, the entering of one or more search terms provides the ability to alert users only when there is a change relating to the one or more search terms in the monitored document. 
     Start 
     In block  400  of  FIG. 4 , raw information is extracted from the monitored document, which is subject to change, previously selected in block  300  of  FIG. 3 . The extraction may comprise any method or combination of methods such as web crawling, flat file parsing, natural language processing, or screen scraping. 
     In an embodiment utilizing web crawling as an extraction method in block  400 , the structure of an input document, e.g., the monitored document, is analyzed to detect attributes of data elements that can be used for identification. Such attributes may include markup tags, the absolute or relative position of the data element, or the format in which the data element appears, e.g., a heading, table, or indented paragraph. As an example, the system may detect, in a court document to be monitored, that attorney and party data elements are encapsulated in metadata or markup tags such as “&lt;attorney&gt;” and “&lt;party&gt;”. Similarly, attorney and party data elements in a particular court document may appear in a known absolute or relative position. Alternatively, the data elements may appear in a table of a known particular size, e.g., five rows by three columns. Data elements can be reliably targeted and extracted based on these identifying attributes. 
     In an embodiment utilizing flat file parsing as an extraction method in block  400 , input documents are parsed based on file structure, e.g., a comma-separated format or fixed-width delimitation. For example, the system may identify that a data element including attorney information is positioned, in a file, as the third sequential element, where each element is delimited by a comma character. Alternatively, the system may identify that a data element including attorney information is positioned between bytes  20  and  30  in a file. 
     In an embodiment utilizing natural language processing as an extraction method in block  400 , the system may parse a document to identify data elements based on syntactic and structural cues. For example, the system may process a document to identify titles such as the name of a court, law firm, or honorific and then identify a data element routinely associated with the title, or cue. As another example, an address processor may identify a street address based on known addressing conventions and may further parse the data element into street number, street name, city, state, and zip code. Such processing may be rule-based, database-driven, where the database includes tables of known syntactic and structural cues, or may utilize artificial intelligence to properly identify data elements. Further, the processing logic may be optimized for a particular document format such as the unique address formatting of a particular country or a formatting style of a particular court. Likewise, processing may identify missing or improperly formatted data elements such as a missing zip code based on rules, database tables, or artificial intelligence. 
     In another embodiment, in block  400 , the web crawling, flat file parsing, and natural language processing extraction methods described above, or other extraction methods, may be combined. For example, flat file parsing may identify that an address block is positioned between bytes  100  and  200  in a particular document, with no ability to parse the address block into separate data elements. The extraction process may then process the address block with natural language processing to identify street number, street name, city, state, and zip code. As above, such processing may be rule-based, database-driven, or may utilize artificial intelligence. 
     In block  402 , the web crawling, flat file parsing, and natural language processing extraction methods described above, or other extraction methods, may detect relationships between data elements which can serve as syntactic and structural cues. For example, a data element representing an attorney name may relate to a particular data element representing a party name. In this example, the extraction process can identify that a particular party is associated with a particular attorney. 
     In block  404 , the raw information extracted from the monitored document in the above blocks is converted into a desired format, for example, a unified XML format. In block  406 , the raw information, now stored in a desired format, is stored as an updatable reference. 
     In an alternative embodiment, blocks  404  and  406  may be substituted with a procedure wherein the updatable reference is created as a copy of the monitored document, as opposed to the extraction procedure described in the preceding paragraph. 
     In block  408 , as shown in  FIG. 1 , the document examination system  104 , through the communication network  106 , stores the extracted copy of the updatable reference in DBMS  102 , editing or updating the previous updatable reference if a previous updatable reference already exists. 
       FIG. 5  is a flowchart of a document examination system where a search term is not used, according to an embodiment of the invention. In block  500 , the system checks the monitoring, alert, and output preferences previously defined by the user in blocks  300  through  306  of  FIG. 3  which are applied as described below. 
     Block  502  determines if the monitoring duration has elapsed. As described above in reference to block  302  of  FIG. 3 , a user may specify that a document be monitored for a particular time period, i.e., for a one year period starting on a specific date, thereby limiting the duration of the monitoring service to the specified time period. If the monitoring duration has elapsed, monitoring will stop in block  504 . In an embodiment, a final document alert or other electronic notification may be sent to the user indicating that the document will no longer be monitored. 
     If the monitoring duration has not elapsed, block  506  identifies whether the alert frequency, or pre-programmed time period, criteria are met. As described above in reference to block  304  of  FIG. 3 , document alerts may be specified at user-determined intervals such as hourly, daily, or weekly. If the criteria of block  506  are not met, the system will delay further processing until such criteria are met, e.g., until the time at which monitoring should commence. In an alternative embodiment, the process returns to block  502  to ensure that the next monitoring time is within the monitoring duration. 
     If the alert frequency criteria are met, block  508  compares the logical entities of the monitored document, to the logical entities of the latest updatable reference. In the preferred embodiment, the monitored document represents a current version of a document subject to change while the updatable reference represents a previously stored or archived and editable reference of the monitored document, e.g., with identification tags, as described below. More specifically, in the preferred embodiment, the monitored document represents a current document from data source  100  in  FIG. 1 , while the updatable reference represents an editable reference thereof from DBMS  102  in  FIG. 1 , which was extracted and archived through the process shown in blocks  400  through  408  of  FIG. 4 . 
     The logical entities of the monitored and updatable reference may comprise key information such as parties, attorneys, entries, and the like. If block  508  does not identify a change between the logical entities of the two documents, the process returns to block  502 . 
     If block  508  does identify one or more differences between the logical entities of the monitored document and the editable version, the updatable reference is edited in block  510  to reflect the changed logical elements. Further, each change to the updatable reference is tagged with a revision identification which may comprise a letter or letters, a number or numbers, symbols, a date-stamp, or any combination thereof. For example, an insertion may be represented with an “&lt;i&gt;” identification tag, while a deletion may be represented with a “&lt;d&gt;” identification tag. The identification tags may be date-stamped for archiving proposes or for the purpose of recreating a document as it appeared on a certain date. For example, the system can be set to ignore all logical entities associated with an “&lt;i&gt;” or “&lt;d&gt;” tag having a date-stamp after a certain date, thereby presenting the user with a document as it appeared on a certain date. In the preferred embodiment, such versioning and recreation can be accomplished based on a single editable version through the use of a unified format, as shown in block  404  of  FIG. 4  and as described above, together with the identification tags. 
     Block  512  is an analytic stage which determines if the edits applied to the updatable reference in block  510  are actual changes to logical entities or are instead logical entities which have simply moved, or drifted, in position. In an embodiment, the drifting of logical entities may not necessarily result in the issuance of a document alert. Block  512  determines if the updates applied to the updatable reference in block  510  represent drift by comparing the deleted logical entities in the updatable reference to the inserted logical entities in the monitored document. 
     Further, in an embodiment, unique keys embedded in each entity may be utilized in block  512  to improve the accuracy of the comparison of the monitored document and the editable version. 
     In block  512 , if the deleted logical entities in the updatable reference match inserted logical entities in the monitored document, the system assumes that drift has occurred and that a document alert is unnecessary for this particular change. At such time, the process returns to block  502 . 
     If block  512  does not identify drift in at least one of the changed logical entities, alert operation  514  commences according to the preferences specified in block  500 . The alert operation may comprise preparing an output document and notification to the appropriate user or users. The process then returns to block  502 . 
       FIG. 6  is a flowchart of a document examination system where a search term is not used, according to an embodiment of the invention. In block  600 , the system checks the monitoring, alert, and output preferences previously defined by the user in blocks  300  through  306  of  FIG. 3  which are applied as described below. 
     Block  602  determines if the monitoring duration has elapsed. As described above in reference to block  302  of  FIG. 3 , a user may specify that a document be monitored for a particular time period, i.e., for a one year period starting on a specific date, thereby limiting the duration of the monitoring service to the specified time period. If the monitoring duration has elapsed, monitoring will stop in block  604 . In an embodiment, a final document alert or other electronic notification may be sent to the user indicating that the document will no longer be monitored. 
     If the monitoring duration has not elapsed, block  606  identifies whether the alert frequency, or pre-programmed time period, criteria are met. As described above in reference to block  304  of  FIG. 3 , document alerts may be specified at user-determined intervals such as hourly, daily, or weekly. If the criteria of block  606  are not met, the system will delay further processing until such criteria are met, e.g., until the time at which monitoring should commence. In an alternative embodiment, the process returns to block  602  to ensure that the next monitoring time is within the monitoring duration. 
     If the alert frequency criteria are met, block  608  compares the logical entities of the monitored document version to the logical entities of the latest updatable reference. In the preferred embodiment, the monitored document represents a current version of a document subject to change while the updatable reference represents a previously archived and editable reference of the monitored document, e.g., with identification tags, as described below. More specifically, in the preferred embodiment, the monitored document represents a current document from data source  100  in  FIG. 1 , while the updatable reference represents an editable reference thereof from DBMS  102  in  FIG. 1 , which was extracted and archived through the process shown in blocks  400  through  408  of  FIG. 4 . 
     The logical entities of the monitored and updatable reference may comprise key information such as parties, attorneys, entries, and the like. If block  608  does not identify a change between the logical entities of the two documents, the process returns to block  602 . 
     If block  608  does identify one or more differences between the logical entities of the monitored document and the updatable reference, the updatable reference is edited in block  510  to reflect the changed logical elements. Further, each change to the updatable reference is tagged with a revision identification which may comprise a letter or letters, a number or numbers, symbols, a date-stamp, or any combination thereof. For example, an insertion may be represented with an “&lt;i&gt;” identification tag, while a deletion may be represented with a “&lt;d&gt;” identification tag. The identification tags may be date-stamped for archiving proposes or for the purpose of recreating a document as it appeared on a certain date. For example, the system can be set to ignore all logical entities associated with an “&lt;i&gt;” or “&lt;d&gt;” tag having a date-stamp after a certain date, thereby presenting the user with a document as it appeared on a certain date. In the preferred embodiment, such versioning and recreation can be accomplished based on a single updatable reference through the use of a unified format, as shown in block  404  of  FIG. 4  and as described above, together with the identification tags, as described immediately above. 
     Block  612  is an analytic stage which determines if the updates applied to the updatable reference in block  610  are actual changes to logical entities or are instead logical entities which have simply moved, or drifted, in position. In an embodiment, the drifting of logical entities may not necessarily result in the issuance of a document alert. Block  612  determines if the updates applied to the updatable reference in block  610  represent drift by comparing the deleted logical entities in the updatable reference to the inserted logical entities in the monitored document. 
     Further, in an embodiment, unique keys embedded in each entity may be utilized in block  612  to improve the accuracy of the comparison of the monitored document and the updatable reference. 
     In block  612 , if the deleted logical entities in the updatable reference match inserted logical entities in the monitored document, the system assumes that drift has occurred and that a document alert is unnecessary for this particular change. At such time, the process returns to block  502 . 
     If block  614  does not identify drift in at least one of the changed logical entities, the change in the logical entities is searched for the one or more search terms entered according to block  600 , allowing for the ability to alert users only when there is a change relating to the one or more search terms in the monitored document. If the one or more search terms are not found in the changed entities, the process returns to block  602 . If the one or more search terms are found in the changed entities, alert operation  616  commences according to the preferences specified in block  600 . The alert operation may comprise preparing an output document and notification to the appropriate user or users. The process then returns to block  602 . 
       FIGS. 5 and 6  are merely illustrative of embodiments incorporating the present invention and does not limit the scope of the invention as recited in the claims. One of ordinary skill in the art would recognize other variations, modifications, and alternatives. 
       FIG. 7  depicts a graphical user interface such as may appear on an electronic display device to prompt a user to specify a document alert, according to an embodiment of the invention.  FIG. 7  is merely illustrative of an embodiment incorporating the present invention and does not limit the scope of the invention as recited in the claims. One of ordinary skill in the art would recognize other variations, modifications, and alternatives. 
     The interface of  FIG. 7  includes field  700  into which a user may enter the name of the document or documents to be monitored. In field  702 , a user may define a description of this particular monitoring task for future reference, such as a description of the monitored document or an explanation of the reasons for monitoring the document. In field  704 , a user may specify one or more search terms, thereby narrowing future document alerts to changes related to the one or more search terms. Through drop-down menu  710 , a user may specify the alert frequency. In an embodiment of the invention, the alert frequency may be selected from a drop-down menu which offers a multiplicity of frequency choices, e.g. daily or monthly. In another embodiment, the alert frequency may be selected by an interface representing a dial. In yet another embodiment, the alert frequency may be entered in a text field which may specify an interval or a formula used to define the appropriate alert interval or alert dates. 
     Button  708  is an electronic symbolic button which allows a user to save or reset the information entered into the interface. According to an embodiment, several versions of the information entered may be saved. 
     Button  706  is an electronic symbolic button which allows a user to cancel the information entered into the interface. 
       FIG. 8  depicts a graphical user interface such as may appear on an electronic display device to allow a user to adjust viewing options of an output document, according to an embodiment of the invention.  FIG. 8  is merely illustrative of an embodiment incorporating the present invention and does not limit the scope of the invention as recited in the claims. One of ordinary skill in the art would recognize other variations, modifications, and alternatives. 
     In one embodiment of the present invention, output options may include viewing an entire changed document without markup, the entire output document with changes marked or highlighted, only the changed portions of the document, only additions, only deletions, only formatting changes, only certain types of modifications, or any combination of the above. Such options are illustrated in the view options section of  FIG. 8  as buttons  800 ,  802 , and  804 . 
     In an embodiment, the user may choose such output options based on any change in the document or based only on changes related to a specific search term within the document. 
     In another embodiment, output options may define coding, such as color coding or format coding, of the output document. For example, if a section of the document or a search term appears as an addition to the document, the inserted section or term may be colored in green to indicate the insertion. Similarly, if a section of the document or a search term appears as a change to the document, the changed section or search term may be colored in blue to indicate the change. As another example, if a search term is deleted, the deleted text may be stricken, thereby indicating deleted text. Such options are illustrated in the legend of  FIG. 8  as labels  800 ,  802 , and  804 . 
     While the invention has been described and illustrated in connection with preferred embodiments, many variations and modifications as will be evident to those skilled in this art may be made without departing from the spirit and scope of the invention, and the invention is thus not to be limited to the precise details of methodology or construction set forth above as such variations and modifications are intended to be included within the scope of the invention. Except to the extent necessary or inherent in the processes themselves, no particular order to steps or stages of methods or processes described in this disclosure, including the Figures, is implied. In many cases the order of process steps may be varied without changing the purpose, effect or import of the methods described.