This tag is associated with 2 posts

When Reconnect the Interrupted Courses for Information Systems

Have a look at the Domain Driven Design Quickly online and found the interesting words by Eric Evans: The long-term trend is toward applying software to more and more complex problems deeper and deeper into the heart of these businesses. It seems to me this trend was interrupted for a few years, as the web … Continue reading

Relational Models and OO

Object-oriented theory and relational algebra Original: Zhang3, 2011-04-19 1. Relational algebra is a subset of first-order logic and what it represented is, the logical relationship between things. 2. E-R model has deviated from the real  intention of  relational logic. The ‘E’ should not be an entity but just a name. Relational modeling should not by … Continue reading



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