An MVC + three-tier structure, a database-based web business system, a common architecture, see figure,

The goal is to conceive an abstract, conceptual, universal, usable in most Web database commercial systems, while the specific schemas are designed on this architecture,

Not familiar with the UML, so use WPS painting, put up the diagram, interested in the ape friends, if you can read, please give some pointers, thank you, there are good suggestions, I will revise and put up again.

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An MVC + three-tier structure, a database-based web business system, a common architecture, see figure,