Managing the Production Data Warehouse in Visual Studio .NET

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Managing the Production Data Warehouse
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on Regular communication helps ensures that the source system application development team continues to consider the impact of their own enhancements and modi cations on the data warehouse While they do not need to limit what they do because of potential impact on the data warehouse, they do need to ensure that the data warehouse team is prepared to properly process any new data when it begins to ow from the source system This can be accomplished by having a representative from the data warehouse attend change review meetings for the source systems or review the change/enhancement requests that have been approved This provides insight into what the source system support team will be working on and enables the data warehouse team to begin exploring the potential impact on the data warehouse itself
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Maintaining the BI Application
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The BI application provides a starting point for business users As these initial reports and analyses are used, new ideas will be generated Often these enhancement requests are formally submitted, but usually new reports are created directly by business users The beauty of a BI environment is that experienced users can indeed create their own reports and analyses This can be done from scratch or through a series of modi cations to existing reports, enabling them to morph into a completely new report It does not require anyone else to step in and do the work for them However, such reports may not follow the standards developed for BI development and they may not run ef ciently They may meet the business need, however, and if a report is useful enough, it may be shared with colleagues for their use too Nonetheless, rather than have a poorly performing report distributed throughout the business community, it is better for the author of the report to submit it to a central BI support team for a formal release The BI support team may be a group of highly experienced business analysts within the business community This support team can ensure that proper formatting and other standards are applied Quality checks can be done to ensure the accuracy of calculations Finally, the ef ciency of the report can also be reviewed Usually, in a short time frame the new report can be released into the BI environment as a new analysis in the library of reports If the new analysis is valuable enough, it may even be included on a dashboard or other BI portal for general access As more people gain experience, they can be taught how to prepare these reports or analyses for distribution The important thing is to provide a mechanism for new reports and analyses to be distributed to the rest of the business community In addition, keep in mind that not every report or analysis must go through this process, just those that are to be included as part of the of cial BI application Many reports will be created for personal use that do not need to be shared
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Part V
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Tracking Questions and Problems
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When the data warehouse and BI solution is released for use, there must be a mechanism in place to collect and track questions, issues, and problems This same mechanism may also be used to submit and track enhancement requests More information about handling enhancement requests can be found in 13 The organization may already have a system in place to track problems This is often used by the help desk This application may be able to log and help track data warehouse and BI issues too The data warehouse support staff needs access to and training for using the problem-tracking application While a full- edged problem-tracking system can provide many features, a simple spreadsheet can also be used to log and track issues The most important point is that these be documented in a single location so that all issues relating to the data warehouse environment are identi ed and monitored All feedback should be logged This helps to understand how the support team is spending their time Feedback could be a question regarding how to use the data warehouse or what the data means Problems that are reported could include the data warehouse not working at all, reporting an error in the data, or a malfunction in getting the BI application to run Sometimes feedback is a request for something, such as a new business measure, another report, or a new data element The actions resulting from these requests will vary, but a common set of information should be tracked for all feedback, including the following: A unique tracking number Name and contact information for the person reporting the problem or requesting the enhancement The group for which this person works (sales, marketing, IT) Date the problem is identi ed The request type (bug, enhancement request) A brief description of the problem Severity of the problem (eg, the system is down, important but can get by in the meantime, nice to have, critical enhancement) Part of the data warehouse/BI environment is involved (data, BI calculation, report, query performance, ETL system rules) This may not be known at rst, but when it is gured out, note it The status of this issue (eg, open, resolved, solution scheduled for release in the second quarter of next year) Date the problem is resolved
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