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Showing an external system in Sequence Diagram

Krzysztof Koziol
Ranch Hand

Joined: Nov 19, 2006
Posts: 133

Hi,

In Cade & Sheil example in the 3rd SD "Email Server" has been added and "sendMessage" is called on the "Email Server". Should it there be EmailDAO instead of external system?

Regards,
Krzysztof


SCJP 5.0, SCWCD 5.0, SCBCD 5.0, SCEA/OCMJEA 5.0
Krzysztof Koziol
Ranch Hand

Joined: Nov 19, 2006
Posts: 133

Hello,

Guys, in yours sequence diagrams, did you depict an external system as an actor or a just regular box?
Ranganathan Kaliyur Mannar
Bartender

Joined: Oct 16, 2003
Posts: 1083
    
  10

I used a regular box...


Ranga.
SCJP 1.4, OCMJEA/SCEA 5.0.
Gurukant Desai
Ranch Hand

Joined: Apr 07, 2008
Posts: 56
Hi,

Even I have same doubt "Cade & Sheil example in the 3rd SD "Email Server" has been added and "sendMessage" is called on the "Email Server". Should it there be EmailDAO instead of external system? "

Because we are referencing webservice into session bean by @WebServiceRef annotation, hence I dont think there is any scope of introducing DAO, but then any external datasource should be accessed using DAO. I am stuck in this point.

Can someone please clarify?
 
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