Is this class diagram correct according to this use case diagram?

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Jatinder Singh picture Jatinder Singh · Nov 3, 2011 · Viewed 13k times · Source

I am trying to create a class diagram which shows generalisation and maybe some form of aggregation or composition from this use case diagram. The intended system is to be a site/application similar to facebook social networking.

USE CASE DIAGRAM:

enter image description here

CLASS DIAGRAM:

enter image description here

I am pretty sure something is wrong with the class diagram please could someone help me out, thanks.

Answer

vainolo picture vainolo · Nov 23, 2011

There is no direct relation between a class diagram and a use case diagram. One is used to understand requirements and the other to model the system's static structure.

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