Building and Managing the Meta Data Repository: A Full by David Marco

By David Marco

"This is the 1st ebook to take on the topic of meta information in info warehousing, and the consequences are awesome . . . David Marco has written in regards to the topic in a manner that's approachable, functional, and instantly worthy. development and handling the Meta facts Repository: a whole Lifecycle advisor is a wonderful source for any IT professional." -Steve Murchie crew Product supervisor, Microsoft Corporation

Meta facts repositories provides your organization with great worth in the event that they are used effectively and for those who comprehend what they could, and cannot, do. Written by means of David Marco, the industry's top authority on meta facts and recognized columnist for DM overview, this booklet bargains the entire tips you will have for constructing, deploying, and coping with a meta facts repository to realize a aggressive virtue. After illustrating the basic recommendations, Marco exhibits you ways to take advantage of meta information to extend your company's profit and reduce costs. you can find a accomplished examine the foremost traits affecting the meta info undefined, in addition to steps on find out how to construct a repository that's versatile adequate to evolve to destiny alterations. This vendor-neutral advisor alsoincludes whole assurance of meta info resources, criteria, and structure, and it explores the complete gamut of sensible implementation issues.Taking you step by step in the course of the technique of enforcing a meta information repository, Marco exhibits you ways to:
- assessment meta info instruments construct the meta info venture plan
- layout a customized meta facts architecture
- employees a repository team
- enforce information caliber via meta data
- Create a actual meta info model
- evaluation meta information supply requirements

The CD-ROM includes:
- A pattern implementation undertaking plan
- A functionality and have record of meta info instrument requirements
- a number of actual meta datamodels to help particular enterprise functions

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Extra resources for Building and Managing the Meta Data Repository: A Full Lifecycle Guide

Sample text

As meta data is extracted and stored over several years, snapshots of the data exist for each year. To accomplish this, though, the meta model tables need to be captured with a From and To date on each column. These allows users to easily trace back through the repository to past versions of the meta data. The concept and language of meta data originated in operational systems. However, since operational systems contain a single, correct definition of data, the need for meta data is not as relevant.

This type of functionality is critical for any company trying to ensure that its IT systems are sufficiently flexible and maintainable to support its ever-changing business information needs. Like DSS impact analysis reports, enterprise-wide impact analysis reports are generally quite technical. This isn't a problem because they are used primarily by the IT staff that supports the company's information systems. The IT staff should be able to limit the amount of information on the impact analysis reports by having record selection on the following report attributes: § System § System table § System field § Table type Enterprise-wide impact analysis reports provide a company with the system flexibility to meet its current and future businesses needs.

In addition, many business users are interested in receiving estimates of query and report execution times in order to decide if they want to run their query/report. Common examples of these users include: § Marketing analysts § Sales analysts § Financial decision makers Technical Users Technical users, like business users, fill many roles within an organization. They may be programmers, data acquisition developers, data access developers, data modelers, senior analysts, or members of the meta data repository team.

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