Description: large information systems are usually very complicated, it is difficult to directly analyze design, often using models to design and analysis system. The model is the real world of a certain abstract things said. Abstract is the meaning of taking the very nature of things, the neglect of other things secondary factor.
To Search:
- [yong] - securities investment model, data entry,
- [yufa000000001] - his side, put his own view, do not under
- [designpattern] - but a model for the design of the book,
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