Abstract:
Methods, systems, and apparatus, including computer program products, implementing techniques for receiving a first information related to a first transaction associated with a first user session with a multi-tier enterprise application, the first information including performance data that is representative of how well components in at least two tiers of the enterprise application perform in executing the first transaction; and determining based on the first information whether the first transaction is associated with a prioritized aspect of the enterprise application, and if so, taking an action based on the determining.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is related to U.S. application Ser. No. 10/938,412, filed on Sep. 10, 2004. 
     
    
     BACKGROUND 
       [0002]    This description relates to enterprise application performance monitors. 
         [0003]    Applications of an enterprise (“enterprise applications”) are typically implemented as multi-tier applications distributed over numerous computing systems. An example of a multi-tier application is a three-tier application having a data tier, a middle tier, and a client tier. The data tier can be comprised of one or more databases, which together contain the data relevant to the application. The middle tier acts as an intermediary between data in the data tier and the application&#39;s clients, managing interactions between application clients and application data. The middle tier controls and processes business logic, including how clients access data, how the application processes data, and how content is presented to clients. The client tier provides the application&#39;s user interface (e.g., a browser-based graphical user interface for a thin client application program or a thick client application program). Users communicate with the enterprise application through the user interface. The client tier interacts with the middle tier to make requests and to retrieve data from the data tier. The client tier then displays to the user the data retrieved from the middle tier. Conventionally, performance of an enterprise application is measured on an end-to-end round-trip basis from the start of a request by a user (e.g., as indicated by a depressing of a key or a button) to the time when the user can use the data supplied in response to the request. 
       SUMMARY 
       [0004]    In general, in one aspect, the invention provides methods and apparatus, including computer program products, implementing techniques for receiving a first information related to a first transaction associated with a first user session with a multi-tier enterprise application, the first information including performance data that is representative of how well components in at least two tiers of the enterprise application perform in executing the first transaction; and determining based on the first information whether the first transaction is associated with a prioritized aspect of the enterprise application, and if so, taking an action based on the determining. 
         [0005]    Implementations of the invention may include one or more of the following features. 
         [0006]    The techniques for receiving a first information include techniques for receiving information related to a plurality of transactions, the received information including the first information. The plurality of transactions may be associated with the first user session. The received information may include performance data that is representative of how well components in at least two tiers of the enterprise application perform in executing respective ones of the plurality of transactions. The first transaction may correspond to an instance of a user request for data stored on one or more components in a data tier of the enterprise application. The first information may include performance data that is defined using a time-based metric. 
         [0007]    The techniques for determining whether the first transaction is associated with a prioritized aspect of the enterprise application may include examining the first information to determine whether the first information includes an indicator that the first transaction corresponds to an instance of a user request for an aspect of the enterprise application that is associated with one of the following: a business critical function, a secondary function, or a tertiary function. The first transaction may correspond to an instance of a user request for an aspect of the enterprise application, and the techniques for determining whether the first transaction is associated with a prioritized aspect of the enterprise application may include examining the first information to identify a prioritization level that is associated with the user requested aspect. The prioritization level may include at least two discrete prioritization levels. 
         [0008]    The enterprise application may be a web-based enterprise application and the first transaction may correspond to an instance of a user request for a web page that includes one or more objects formed by data stored on one or more components in a data tier of the enterprise application. 
         [0009]    The techniques for determining whether the first transaction is associated with a prioritized aspect of the web-based enterprise application may include techniques for determining whether the first transaction is associated with a user request for a business critical function web page, a secondary function web page, or a tertiary function web page. The techniques for taking an action may include identifying a target performance value for the first transaction; and comparing the performance value included in the first information with the identified target performance value to determine whether the components in the at least two tiers of the enterprise application performed satisfactorily in executing the first transaction. The techniques for taking an action may include identifying a target performance value for each monitored element of the enterprise application that is involved in the first transaction; and for each monitored element, comparing its performance value included in the first information with its target performance value to determine whether the monitored element performed satisfactorily during the first transaction. 
         [0010]    The techniques may further include providing in a graphical user interface, a visual indicator of a performance of the enterprise application in executing a plurality of transactions associated with one or more user sessions with the enterprise application, each of the plurality of transactions being associated with a prioritized aspect of the enterprise application, the first transaction being one of the plurality of transactions. The visual indicator may include one or more of the following: a pie chart, a bar version of a histogram, and a histogram. The visual indicator may provide a visual representation of a degree at which the performance of the enterprise application satisfies a customer experience while interacting with the enterprise application. The visual indicator may provide a visual cue to an enterprise application provider of a presence of a performance-related issue in the enterprise application that has a negative effect on the performance of the enterprise application. The visual indicator may further provide a visual cue to the enterprise application provider of an extent to which the performance-related issue in the enterprise application has a negative effect on the performance. 
         [0011]    The techniques may further include providing in a graphical user interface, a visual indicator of a performance of one or more monitored elements of the enterprise application during an execution of a transaction associated with a user session with the enterprise application. The one or more monitored elements may include one or more of the following: a web page of the enterprise application, and a data service producer of the enterprise application. Each of the one or more monitored elements may be associated with a customer impact identifier. The customer impact identifier may include one of the following: a business critical function identifier, a secondary function identifier, and a tertiary function identifier. 
         [0012]    In general, in another aspect, the invention features a system that includes an application performance monitoring tool operable to receive a first information related to a first transaction associated with a first user session with a multi-tier enterprise application, the first information including performance data that is representative of how well components in at least two tiers of the enterprise application perform in executing the first transaction; and determine based on the first information whether the first transaction is associated with a prioritized aspect of the enterprise application, and if so, take an action based on the determination. 
         [0013]    Implementations of the invention may include one or more of the following features. 
         [0014]    The application performance monitoring tool may receive the first information from a monitoring database that stores information related to transactions associated with user sessions with the enterprise application, the user sessions including the first user session. The monitoring database may store performance data that is representative of how well components in at least two tiers of the enterprise application perform in executing respective ones of the plurality of transactions. The first transaction may correspond to an instance of a user request for data stored on one or more components in a data tier of the enterprise application. The first information may include performance data that is defined using a time-based metric. 
         [0015]    The application performance monitoring tool may be operable to determine whether the first transaction is associated with a prioritized aspect of the enterprise application by examining the first information to determine whether the first information includes an indicator that the first transaction corresponds to an instance of a user request for an aspect of the enterprise application that is associated with one of the following: a business critical function, a secondary function, or a tertiary function. The first transaction may correspond to an instance of a user request for an aspect of the enterprise application. The application performance monitoring tool may be operable to determine whether the first transaction is associated with a prioritized aspect of the enterprise application by examining the first information to identify a prioritization level that is associated with the user requested aspect. The prioritization level may include at least two discrete prioritization levels. 
         [0016]    The application performance monitoring tool may be further operable to identify a target performance value for the first transaction; and compare the performance value included in the first information with the identified target performance value to determine whether the components in the at least two tiers of the enterprise application performed satisfactorily in executing the first transaction. The application performance monitoring tool may be further operable to identify a target performance value for each monitored element of the enterprise application that is involved in the first transaction; and for each monitored element, compare its performance value included in the first information with its target performance value to determine whether the monitored element performed satisfactorily during the first transaction. 
         [0017]    The application performance monitoring tool may be further operable to provide in a graphical user interface, a visual indicator of a performance of the enterprise application in executing a plurality of transactions associated with one or more user sessions with the enterprise application, each of the plurality of transactions being associated with a prioritized aspect of the enterprise application, the first transaction being one of the plurality of transactions. 
         [0018]    The application performance monitoring tool may be further operable to provide in a graphical user interface, a visual indicator of a performance of one or more monitored elements of the enterprise application during an execution of a transaction associated with a user session with the enterprise application. 
         [0019]    The system may further include a correlation engine operable to capture, measure, and analyze error data and informational logs generated by the application performance monitoring tool. 
         [0020]    The system may further include a customer service level monitor operable to communicate summary real-time application performance information for one or more enterprise applications for different time periods. 
         [0021]    The system may further include a systems infrastructure dashboard that enables an end-to-end systems health view for each of the tiers of the enterprise application. 
         [0022]    The system may further include a customer experience dashboard that summarizes metrics across one or more of the following data sources: real-time and historical; actual and synthetic traffic; page, producer and operational performance data; internally and externally sourced performance data; internal tools to support internal customers and external products to support external customers. 
         [0023]    The system may further include an administrative console operable to enable a user to administer additions, modifications and deletions of monitoring tool supporting data, and corresponding associations and mappings information, the monitoring tool supporting data including URI data, producer data, node data, and realm data, and the mappings information including functions, page to function mappings, page to group mappings, page to producer mappings, and producer to group mappings. 
         [0024]    The system may further include an alert notification engine configured with a set of robust configurable rules, and operable to apply the set of rules against data collected by an application performance monitoring tool, to detect abnormalities, trends, and/or short and long term performance issues, and generate an alert based on the application of the set of rules. 
         [0025]    The system may further include an outlier data analysis tool operable to examine outlier data against a plurality of variables to determine whether there is a common cause or a number of common causes of the outlier data, and take an action based on the determination. 
         [0026]    The system may further include a third party application monitoring tool operable to measure and monitor the performance of third party applications that are incorporated into the various product suites and used by customers; and measure and monitor key product pages and transactions from outside of an enterprise network so as to gather information on complete web page performance and total roundtrip performance time between a customer client computer and the enterprise network. 
         [0027]    In general, in another aspect, the invention features a method that includes providing a structure that imposes checkpoints during design, development, testing and transition, and live production stages of an enterprise application lifecycle, such that performance of the enterprise application is based on metrics associated with customer impact. 
         [0028]    Implementations of the invention may include one or more of the following features. 
         [0029]    The method may further include identifying one or more elements of the enterprise application as elements to be monitored from a customer impact perspective; and for each identified element, associating the element with a customer impact identifier. Each identified element may be associated with one of the following customer impact identifiers: a business critical function identifier, a secondary function identifier, and a tertiary function identifier. The method may further include performing a benchmark process to determine a target performance value for each element of the enterprise application to be monitored from a customer impact perspective. The benchmark process may be performed at periodic intervals, and the target performance value for each element of the enterprise application to be monitored may be updated at the periodic intervals. The method of performing the benchmark process for each element to be monitored includes determining a first value representative of a predefined percentile of measured performance values for each of the plurality of days of the periodic interval; identifying a median of the first values; and setting the target performance value for the element based on the identified median of the first values. The predefined percentile may be a 92 nd  percentile. 
         [0030]    The details of one or more examples are set forth in the accompanying drawings and the description below. Further features, aspects, and advantages of the invention will become apparent from the description, the drawings, and the claims. 
     
    
     
       DESCRIPTION OF DRAWINGS 
         [0031]      FIGS. 1 and 2  each show a data access system. 
           [0032]      FIG. 3  shows a flowchart of a process for determining a customer service level of an enterprise application. 
           [0033]      FIGS. 4-25  each show a screenshot generated by an application performance monitoring tool. 
           [0034]      FIG. 26  shows components of a performance methodology. 
           [0035]      FIG. 27  shows a performance matrix. 
       
    
    
     DETAILED DESCRIPTION 
       [0036]    This description provides an example of a suite of tools that may be developed and deployed by an enterprise to monitor the performance of one or more enterprise applications. This suite of tools can be implemented by leveraging new technologies, such as rich Internet applications, to provide a robust and high-quality user experience. Although the example enterprise applications provided in this description relate to web-based products, the techniques are also applicable to non-web-based products, such as thin/thick client enterprise applications business critical function elements. Of the 24 business critical function elements of the NetBenefits product, in the most-recent 5 minute interval, 22 (i.e., the dark green portion of the pie chart) have response times that meet or exceed the target performance value, 1 (i.e., the gray portion of the pie chart) business critical function element has not been requested, and 1 (i.e., the yellow portion of the pie chart) business critical function element has a measured performance that is acceptable (the threshold for what is “acceptable” may be configured by the enterprise as a percentage of the target performance value, e.g., within 85% of the target performance value). In some examples, a portion of the pie chart may be colored red indicative of a measured performance value of the business critical function element that is unacceptable (e.g., fails to be within 85% of the target performance value). Although the color convention of the illustrated pie chart is green/gray/yellow/red, other color conventions or visual indices can be used. Further, the number of wedges of the pie chart can vary based on the product&#39;s current performance, e.g., the eWorkplace product pie chart  410  has two wedges totaling 35 business critical function elements. 
         [0037]    When a user (e.g., an employee of the enterprise) clicks on a “Products” link  404  provided on a navigation bar  402  of the Business Unit Homepage  400 , a menu of products is provided. The user may select a “NetBenefits” link from the menu of products to obtain more detailed information about the performance of the monitored elements of the NetBenefits product that are web pages. In the example screenshot of  FIG. 5 , one portion of a NetBenefits dashboard  500  is provided in a “Business Critical Functions (BCFs)” window  502  and another portion of the NetBenefits dashboard  500  is provided in a “Secondary Function Pages” window  504 . A slider located on the right-hand portion of each window  502 ,  504  enables the user to view different portions of the NetBenefits dashboard  500 . In the displayed portion, detailed information about seven (e.g., “Homepage,” “Your Pension Summary,” “-Estimate a Payment,” “-Benefit Estimate #1,” “-Exchanges Landing Page,” “-Exchanges Confirmation,” and “Summary: Investments Tab”) BCF web pages of the NetBenefits product are provided. The information for the “Homepage” includes the number of views of the Homepage (e.g., 599,981), its current CSL (e.g., 96%), the average CSL for the past 24-hours (e.g., 96%), the average CSL over an 8-day period (e.g., 96%), a bar version of a histogram that visually depicts today&#39;s health of the NetBenefits Homepage based on predefined bins, and performance values (e.g., current average, current minimum, current maximum, today&#39;s average, and 8-day average). In some implementations, the percentage value in the “Current” CSL column is color coded to visually depict changes from interval to interval. Suppose, for example, that the 5-minute interval of the NetBenefits Homepage preceding the current 5-minute interval had a CSL of 94%. The current CSL of 96% may be color coded in green to show an improvement in performance. Suppose, in another example, that the 5-minute interval of the NetBenefits Your Pension Summary page preceding the current 5-minute interval had a CSL of 992%. The current CSL of 87% may be color coded in yellow or red to show a decline in performance. 
         [0038]    For an even more detailed breakdown of the performance of the NetBenefits Homepage, the user may click on a page name, e.g., the “Homepage” link  506  to navigate to a Page Summary page  600  depicted in  FIG. 6 . The Page Summary page  600  provides a number of graphs (e.g., CSL/Volume  602 , CSL/Performance  604 , Average Performance  606 , and Performance Histogram  608 ) that visually depict performance data associated with the Homepage, for example, for each 5-minute interval during a 60-minute period. If desired, the user can click on the magnifying glass icon displayed in the upper-right hand corner of each of the windows containing the graphs  602 ,  604 ,  606 , and  608  to obtain a larger display of the graph information. The Page Summary page  600  provides for high user interaction with the information by enabling the user to modify parameters (e.g., range: 60 min, 24 hr, 8 day, site: ALL, MMK, MRO, DAL, data time by date and time) and to update the graph that is presented in the Page Summary page  600 . The Detailed Performance Histogram  608  shows the CSL values for an individual page or producer that is a monitored element using five color coded buckets as follows: 
         [0000]    
       
         
               
               
               
               
             
               
               
               
               
             
           
               
                   
                   
               
               
                   
                 Description 
                 Calculation 
                 Color 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Bucket 1 
                 Less than or equal 
                 x &lt;= CSL 
                 Green 
               
               
                   
                 to the CSL 
               
               
                 Bucket 2 
                 Exceeding the CSL 
                 CSL &lt; x &lt;= 
                 Light 
               
               
                   
                 but less than or 
                 (CSL + T1) 
                 Green 
               
               
                   
                 equal to CSL + First 
               
               
                   
                 Threshold 
               
               
                 Bucket 3 
                 Exceeding the First 
                 (CSL + T1) &lt; x &lt;= 
                 Yellow 
               
               
                   
                 Threshold but less 
                 (CSL + T2) 
               
               
                   
                 than CSL + Second 
               
               
                   
                 Threshold 
               
               
                 Bucket 4 
                 Exceeding the 
                 (CSL + T2) &lt; x &lt;= 
                 Orange 
               
               
                   
                 Second Threshold 
                 (CSL + T3) 
               
               
                   
                 but less than CSL + Third 
               
               
                   
                 Threshold 
               
               
                 Bucket 5 
                 Exceeding CSL + Third 
                 x &gt; (CSL + T3) 
                 Red 
               
               
                   
                 Threshold 
               
               
                   
               
             
          
         
       
     
         [0039]    The threshold values T1, T2, and T3 can vary from product-to-product and/or element-to-element. The Performance histogram  608  allows users to view detailed histogram stack bar graphs, which display the percentage of requests that meet, and the percentage that exceed, the Customer Service Level (CSL). 
         [0040]    The Page Summary page  600  also provides selectable buttons: “By Site,”  610  “Producers,”  612  and “Detailed Histogram,”  614  that enable the user to drill down to pages which show the performance data using different metrics. For example, clicking on the “By Site” button  610  navigates the user to the example Page by Site page  700  shown in  FIG. 7 , in which the performance data (e.g., CSL, Average Performance, Volume, and Page Load Histogram) is broken down by physical site (e.g., ALL, MMK, MRO, and DAL). Likewise, clicking on the “Producers” button  612  navigates the user to the example Page by Producer page  800  shown in  FIG. 8 , in which the performance data (e.g., Today&#39;s volume, CSL, Performance, Current Errors, and Clones) is shown for all of the data service producer (e.g., OSCAR switches, Plan Cache Aging Check, and Plan Switches) for the NetBenefits Homepage. Clicking on the “Detailed Histogram” button  614  navigates the user to the example Detailed Performance Histogram page  900  shown in  FIG. 9 , which allows a user to change the variables based on time, site, customer or product mix to help pinpoint performance issues or events based selected parameters. The example Detailed Performance Histogram page  900  also include Performance Details measured in different/additional performance metrics including standard deviation (e.g. 1 sigma, 2 sigma) and percentiles (e.g. 92 nd  percentile, 95 th  percentile, and 99 th  percentile). 
         [0041]    When a user (e.g., an employee of the enterprise) clicks on a “Producers” link  406  provided on a navigation bar  402  of the Business Unit Homepage  400 , a menu of data service producers is provided. The user may select a “NB Common” link from the menu of data service producers to obtain more detailed information about the performance of the monitored elements of the NetBenefits product that are data service producers. In the example screenshot of  FIG. 10 , a NB Common dashboard  1000  is provided in which a list of data service producers associated with the NetBenefits product is shown. This page displays volume, target, CSL, performance, error and close information for each producer. Suppose, for example, that the user clicks on producer name, e.g., OSCAR switches. This action causes the user to navigate to a OSCAR switches Producer Summary page  1100  depicted in  FIG. 11 . The Producer Summary page  1100  provides a number of graphs (e.g., CSL/Volume  1102 , Average Performance  1104 , Total Errors  1106 , and Performance Histogram  1108 ) that visually depict performance data associated with the OSCAR switches data service producer, for example, for each 5-minute interval during a 60-minute period. The Producer Summary page  1100  also provides selectable buttons: “By Site,”  1110  and “By Slice,”  1112  that enable the user to drill down to pages which show the performance data using different metrics. For example, clicking on the “By Site” button  1110  navigates the user to the example Producer by Site page  1200  shown in  FIG. 12 , in which the performance data (e.g., CSL, Average Performance, Volume, and Total Errors) is broken down by physical site (e.g., ALL, MMK, MRO, and DAL). Likewise, clicking on the “By Slice” button  1112  navigates the user to the example Producer by Slice page  1300  shown in  FIG. 13 , in which the average performance of the OSCAR switch over a 60-minute interval is shown. The display of this graph can be changed to a number of other metrics (e.g., Volume, CSL, Minimum Performance, Maximum Performance) by selecting one of the options displayed in the menu  1302 . 
         [0042]    By measuring and monitoring the performance of an enterprise application at varying levels of granularity (e.g., at a data provider level, at a data service producer level, at a web server level, and/or at an end-to-end user level), sufficient information may be provided to the monitoring tool  142  for use in generating detailed breakdowns of the performance of the enterprise application as it relates to producers, sites, clones, etc. Such breakdowns may aid the enterprise in more clearly identifying and/or investigating a problem area (e.g., CSL for MRO is significantly lower than CSL for DAL and MMK) so that troubleshooting of that problem area may be performed efficiently and effectively, as well as to diagnose customer impact. 
         [0043]    Although the visual indicators of performance are described and depicted in terms of pie charts, bar versions of histograms, and histograms, any appropriate visual indicator and combination of visual indicators can be used. In addition, these visual indicators can be assembled in a way to create customizable screens for different users and/or for user role types. 
       Additional Data Processing Components 
       [0044]    In some implementations, the enterprise network includes a server computer  120  that runs a correlation engine  144  that captures, measures, and analyzes error data and informational logs generated by the application performance monitoring tool  142 . In one example, the correlation engine  112  receives as input (e.g., from Adlex Inc.) statistics related to traffic patterns on the Internet and uses these statistics to provide a historical context to the real-time reports generated by the application performance monitoring tool  142 . In this manner, the enterprise can differentiate between a CSL that is negatively impacted by an enterprise-related event (e.g., the failure of a data service producer) as opposed to a non-enterprise-related event (e.g., the crippling effects of a virus spread on the Internet). The correlation engine  144  may also receive as input statistics related to traffic patterns within the enterprise network (e.g., across different web applications) to identify trends over various periods of time. In this manner, the enterprise may be able to identify periods of high volume corresponding to a particular time of the month (e.g., high volume bimonthly during pay periods, high volume every April during tax season) and adjust the distribution of server computer clones to avoid overloading or reduced CSLs. 
         [0045]    In some implementations, the enterprise network  110  includes a server computer  120  that runs a Dazzling Display CSL Monitor  146 . Referring to the screenshot of  FIG. 14 , in one example, the Dazzling Display CSL Monitor  1400  is used to communicate summary real-time application performance information on large display monitors. Key information about the BCF are displayed including current volume, CSL and performance in data and graphical format including histogram, line graph, and pie chart format. In addition, an odometer visual tool  1402  is used to show the application&#39;s CSL for current, today and 8-day results. 
         [0046]    In some implementations, the enterprise network  110  includes a server computer  120  that runs a Systems Infrastructure Dashboard  148 . The Systems Infrastructure Dashboard may be used to support the daily operations of the systems operations and support groups particularly for large seasonal events. For example,  FIGS. 15 and 16  show exemplary Systems Infrastructure Dashboards  1500 ,  1600  for year end events;  FIGS. 17 and 18  show exemplary Systems Infrastructure Dashboards  1700 ,  1800  for annual enrollments. These Systems Infrastructure Dashboards  1500 ,  1600 ,  1700 ,  1800  allow for the end-to-end systems health view for the web layer, middle-tier layer and back-end layer by use of key metrics that are calculated, accumulated and display for each of these layers. 
         [0047]    In some implementations, the enterprise network  110  includes a server computer  120  that runs a Customer Experience Dashboard  150 . This may be used to support the operations of the business operations support function and to better attain the health of the customer (both external and internal) facing applications and systems. This Customer Experience Dashboard summarizes metrics across different kinds of data sources: real-time and historical; actual and synthetic traffic; page, producer and operational performance data; internally and externally sourced performance data; internal tools (to support internal customers, e.g., call center and back office) and external products (to support external customers). Internally sourced performance data refers to data collected with the infrastructure whereas externally sourced performance data refers to data collected outside the infrastructure and is sometimes provided by a third party source. Together these data sources provide a holistic view of customer experience to enable a decision maker affiliated with the enterprise to make necessary business-related decisions, prepare related quality analysis reports and understand customer impact and experience. Measurements may include incident information, crisis data, utilization patterns, cross-channel usage, service level metrics and customer impact assessment. In addition, the Customer Experience Dashboard serves as a central communication tool as it is a single portal to key operational data such as incident information (see  FIGS. 19 ,  20 ,  21 , and  22 ). 
         [0048]    In some implementations, the enterprise network  110  includes a server computer  120  that runs an Admin Console  152 . Referring to  FIGS. 23 ,  24 , and  25 , the Admin Console is used to streamline the administration of the underlying APM data. It helps in the administering additions, modifications and deletions of APM supporting data (e.g., URIs, Producers, Nodes, Realms) and their corresponding associations and mappings information (e.g., functions, page to function mappings, page to group mappings, page to producer mappings, and producer to group mappings). It also includes functionality to make batch updates to page Customer Service Levels (CSLs). In effect, this tool allows for the reduction in the administration workload of APM developers, improvement in response time for customers on application administration, and reduction of errors in administration. 
         [0049]    In some implementations, the enterprise network  110  includes a server computer  120  that runs an alert notification engine  154 . The alert notification engine  154  may be configured with a set of robust configurable rules, which are applied (in some cases, continually) against the data collected by the application performance monitoring tool  142 , to detect abnormalities, trends, and/or short and long term performance issues. The set of rules may include various trigger thresholds and alarming levels, and may identify one or more groups that are to be notified of a performance issue that may require attention. In one example, when a current CSL for homepage of NetBenefits product falls below 83%, the alert notification engine  146  automatically sends a notification message to an application-level monitoring team (e.g., a monitoring team specific to the NetBenefits product) as well as an enterprise-level monitoring team (e.g., a monitoring team that oversees the health of all or a large subset of the enterprise&#39;s deployed web applications). These notification messages are sent as soon as the alert notification engine detects a satisfaction of a rule within the set. In this manner, the application-level and/or enterprise-level monitoring teams are notified of the performance issue in real-time and may take steps to address the issue before it escalates any further. 
         [0050]    In some implementations, the enterprise network  110  includes a server computer  120  that runs an outlier data analysis tool  156  that analyzes data samples (captured by the application performance monitoring tool  142 ) that fall significantly outside the norm. These data samples, also referred to as “outlier data,” represent customers that have received very poor performance. Generally, the outlier data analysis tool  156  examines outlier data against a number of different variables to determine whether there is a common cause (e.g., location of user, time of day, system site, system identifier, customer identifier, etc.) or a number of common causes of the outlier data, which may then be corrected or otherwise attended to. 
         [0051]    In some implementations, the enterprise network  110  includes a server computer  120  that runs one or more third party application performance monitoring tools  158 . These tools  158  incorporate data from external data sources to measure and monitor for two key purposes. First, to measure and monitor the performance of third party applications that are incorporated into the various product suites and used by customers particularly for those key pages considered as BCF and Secondary pages. These third party applications are often not able to be measured once the user&#39;s transaction is outside of the infrastructure. Secondly, to measure and monitor key product pages and transactions from outside of the infrastructure so as to gather information on complete web page performance (as opposed to only the longest item on the page) as well as the total roundtrip performance time outside of the infrastructure through the network and to the customer computer. Generally, these tools  158  monitor the availability, performance, and activity on the third party web applications, developed by third party web vendors, that run outside of the enterprise network  110 . Although described as being separate and distinct from the application performance monitoring tool  142 , there are instances in which the functionality of a third party application performance monitoring tool  158  is integrated into the application performance monitoring tool  142 . 
       Performance Methodology 
       [0052]    The application performance monitoring tool  142  is strongly rooted in a rich performance methodology that was developed to support the tools and provides the underlying related processes and metrics. This performance methodology, known as FPM (Fidelity eBusiness Performance Methodology), provides a repeatable model for triaging each supported product or system and identifying its core monitored elements, e.g., BCF, Secondary and tertiary as well as its related data service producers. These prioritized monitored elements (e.g., BCFs) are used not only for performance monitoring by the monitoring tool  142 , but are also the common identifiers in many related operational processes such as service and support and availability reporting. 
         [0053]    To be effective, a product&#39;s performance needs to not only be actively monitored but also has to be considered during the entire web page and related data producer lifecycle including design, development, testing and transition to its live production state (see  FIG. 26 ). FPM provides the structure for that consideration by imposing checkpoints as well as the important focus on end customer targets as categorized in the Performance Matrix ( FIG. 27 ), as opposed to previously used internal system operating standards and definitions. This Performance Matrix contains several categories of customer targets based on customer page type expectations and was developed by a comprehensive comparative external benchmark analysis. 
         [0054]    One of the integral processes of FPM that the monitoring tool  142  leverages is the Quarterly 92nd Percentile Benchmark analysis. At the end of each 90-day calendar quarter, a query is completed for each web page where the 92nd percentile of each day&#39;s data is obtained. The 92nd percentile was originally selected based on analysis that it provided a sufficient amount of the performance data set in comparison with alternative 95th or 90th percentiles. Next, the values are sorted in data order and the median value is extracted from the data set. This value is then set in the monitoring tool  142  during the first week following the end of a quarter as the new historical benchmark to which new page performance is measured against for the monitors. Benchmarks are updated so that fluctuations in monitoring tool  142  are based on changes on known and recent performance and account for changes in new code, infrastructure, etc. Separately, as part of the quarterly benchmark process, a comparison of the new quarter&#39;s data is made to previous quarters. Changes in the data is noted and flagged particularly for more material changes of +/−15%. If there was a change between the current quarter and the previous quarter such that the current quarter decreased by less than or equal to 15%, it represents an improvement (marked as green). Conversely, if there was a change between the current quarter and the previous quarter such that the current quarter increased by 15% or more percent, then it represents a performance degradation (marked as red). Generally, pages that degraded will require follow-up system analysis to investigate the cause and results may sometimes trigger a development work item. Additional detailed rules also exist that help business and system owners manage and decipher anomalies and changes in the performance of these elements (similar rules exist for producer thresholds as well as external sourced data), as well as impact to customer experience. 
         [0055]    The described techniques can be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or in combinations of them. The techniques can be implemented as a computer program product, i.e., a computer program tangibly embodied in an information carrier, e.g., in a machine-readable storage device or in a propagated signal, for execution by, or to control the operation of, data processing apparatus, e.g., a programmable processor, a computer, or multiple computers. A computer program can be written in any form of programming language, including compiled or interpreted languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program can be deployed to be executed on one computer or on multiple computers at one site or distributed across multiple sites and interconnected by a communication network. 
         [0056]    Method steps of the techniques described herein can be performed by one or more programmable processors executing a computer program to perform functions of the invention by operating on input data and generating output. Method steps can also be performed by, and apparatus of the invention can be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Modules can refer to portions of the computer program and/or the processor/special circuitry that implements that functionality. 
         [0057]    Processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read-only memory or a random access memory or both. The essential elements of a computer are a processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks. Information carriers suitable for embodying computer program instructions and data include all forms of non-volatile memory, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in special purpose logic circuitry. 
         [0058]    To provide for interaction with a customer or application provider operator (generically referred to as a user), the techniques described herein can be implemented on a computer having a display device, e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor, for displaying information to the user and a keyboard and a pointing device, e.g., a mouse or a trackball, by which the user can provide input to the computer (e.g., interact with a user interface element, for example, by clicking a button on such a pointing device). Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback, e.g., visual feedback, auditory feedback, or tactile feedback; and input from the user can be received in any form, including acoustic, speech, or tactile input. 
         [0059]    The techniques described herein can be implemented in a distributed computing system that includes a back-end component, e.g., as a data server, and/or a middleware component, e.g., an application server, and/or a front-end component, e.g., a client computer having a graphical user interface and/or a web browser through which a user can interact with an implementation of the invention, or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (“LAN”) and a wide area network (“WAN”), e.g., the Internet, and include both wired and wireless networks. 
         [0060]    The computing system can include clients and servers. A client and server are generally remote from each other and typically interact over a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. 
         [0061]    Other embodiments are within the scope of the following claims. For example, the described techniques can be performed in a different order and still achieve desirable results. Although the description discusses the context of web pages of a web application, other systems which enable user interaction through a communication network may also benefit from the features discussed.