Javascript-should the website management meta system and common member system adopt a set of membership systems?

For example, I found that some website system management systems (with timed multi-management yuan) and ordinary member systems use a set of systems, and some do not, what are the advantages and disadvantages of this? Please describe it in many ways! For example, I found that some website system management systems (with timed multi-management yuan) and ordinary member systems use a set of systems, and some do not, what are the advantages and disadvantages of this?
Please describe it in many ways!

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For example, I found that some website system management systems (with timed multi-management yuan) and ordinary member systems use a set of systems, and some do not, what are the advantages and disadvantages of this?
Please describe it in many ways!

A system, you canCommon website usersChangeWebsite member usersChangeWebsite administrator, These users are basically a user table, most common in forums and so on.
Not a set of systems, soManage UsersAndWebsite usersThey belong to different tables and cannot modify the relationship. They are mostly found in malls.

The specific choice depends on your business scenario.