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user interface classes during analysis phase

Posted on 2010-11-14
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Last Modified: 2012-05-10
Hello,

Could I use user interface classes during analysis phase or is it too early to use them.
For example:

 sequence diagram
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Question by:vileda
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4 Comments
 
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Expert Comment

by:phoffric
ID: 34131629
Your sequence diagram shows a particular scenario of your system. It is not representative of all the class interactions (unless this happens to be the one and only scenario). In the analysis phase you want to show relationship between classes in object model diagrams, as well as all high level interactions with external entities (e.g., people, other processors, peripheral devices).
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Author Comment

by:vileda
ID: 34131777
I'm doing use case analysis. For each use case in the use case model, I draw a use case realization and create a interaction diagram to show dynamic behaviour.
The sequence diagram above for this use case.

Basic Flow:

FR-01; User selects a list box which he/she wants to enter the item.

FR-02; User declares that he/she wants to add a new item.

FR-03; "New Item Form" appears to user.

FR-04; User fills description field.

FR-05; User clics "Add" buton.

FR-06; "New Item" is added to the selected virtual box.

FR-07; "New Item" is saved to database.

Is it wrong to add form classes to sequnce diagram according to above use case?
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Accepted Solution

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phoffric earned 2000 total points
ID: 34131837
If there were many forms, then actually showing a consistent HMI amongst the forms, would be useful. In industry, it is common during early requirements/analysis phase to actually show mockups of GUI forms as part of getting customer feedback. (No callbacks for buttons, etc.; in fact, sometimes the mockups are done in Visio, rather than code.)

But your description is fairly straightforward. So, adding form classes in this case does not appear to add much value to the analysis. My vote is "No".
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LVL 32

Expert Comment

by:phoffric
ID: 34131842
i.e., My vote is: No, you do not have to add form classes to complete your analysis since from your description, a GUI designer would have no problems coming up with a GUI layout and functionality for customer review.
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