Which Design Levels?
Classical data modeling failed in a number of ways. We have to do better than that. What did not work well was conceptual modeling, which has faded away in favor of what one could call “The Great Pragmatic and Quick, Unified Data Modeling Practice”.
Today many development organizations have a one-step approach to modeling, which is performed when necessary in the development process. Logical and physical models have come together. The driving force is time to delivery, and what the unified process is trying to answer are two aspects of developing a good solution: ...
