O'Reilly logo

IT Architectures and Middleware: Strategies for Building Large, Integrated Systems, Second Edition by Peter Bye, Chris Britton

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

14. Information Access and Information Accuracy

In Chapter 11 we indicate that in our concept of levels of design the task level is the point at which database design should occur. In this chapter, we start by making a few comments on how database design fits in the levels of design scheme and then pick up on two major issues—information access requirements and information accuracy. Especially when it comes to information, almost all organizations are not starting from scratch; databases already exist, often in profusion. A large part of this chapter is devoted to the thorny issue of what to do with existing databases.

During the business process level of design, you identify key data object classes because most IT-intensive business processes ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required