Database Design Process and database Process

Database Design Process and database Process

Get started with user requirements

Main functions of the software:

Because users are divided into average users, operators, and administrators. The first column is the administrator's function, the second column is the operator's function, and the third column is the general user's function.

Design of E-R Diagram

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Conversion from a E-R graph to a link pattern

E-R diagram design is not static, because no one can ensure that their design of the E-R diagram and the actual need to use the table, data completely consistent, so E-R diagram is constantly changing.

E-R-diagram is just a mediation of design relationship patterns, it appears just for us to design a relational table more easily.