UML Question

[008325]

halo~ i have some question on UML ( Use case )

1. Manager use staff card to login the system
2. The user use username and password to login the system ...

how can i explain these two different login use case in one system ?

[bicchi]

I am going to assume that both user and manager are both going to login into some kind of web portal since "system" is a general word and not descriptive enough. Take a look also at this use case explanation (http://en.wikipedia.org/wiki/Use_case#UML_Use_Case_diagram).
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