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Is This use case is correct/proper according to UML? if not please give some input to improve it..
The ways we can look on it as the boundary value “Use Cases” can be described something as “Release Phase 1”?
Writer Module/Reader Module should be proper Ator?
alt text http://img190.imageshack.us/img190/6708/usecaseh.jpg
This diagram is telling me that there is something external to the system you are developing called a “Writer Module”. The Writer needs three Use Cases, for example Initialization.
Similarly another actor needs Check Status and StackUp.
If that is what you intended to say, then this diagram works. Do you really mean it? Does only the Writer module Initialise the system? Or does the system initialise itself? Can the Reader check whether the system has been initialised, before it has been initialised? Is there another Use Case?
Small improvement: make the Use Case names match in their parts of speech. Initialisation is a “Thing”, Check Status is an “Action”. Perhaps Initialize System might be better? “Stack Up” not “StackUp”, be consistent.