[Year 12 SofDev] PSM part 2

[Kevork Krozian]

Hi Mark and friends,

 Quoting from one of my favourite series " UML 2 for Dummies" p 151;
 " Most developers use use cases as artifacts of analysis. Use cases should be used to specify the required behaviours of your system not capture design of your system. Design decisions change often; implementations change even oftener (sic)"
..............
" Separating analysis from design also frees your test team to start developing their test plans directly from the use cases - knowing that the use case will be (relatively) stable, knowing that they will be able to test the functionality of the system directly from the use case.

Logical design is in the analysis phase and Physical design in the design phase. Use cases describe what , not how . How is worked out later in the design phase.

So, the statement Use cases as being a useful tool to use during physical design can only make sense if it is used to inform how your design should proceed based on the what you want to get done from the completed analysis .


My 2c worth.

Kind Regards

Kevork Krozian
Digital Learning Manager
Forest Hill College
www.fhc.vic.edu.au
tel: 0419 356 034

From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces at edulists.com.au] On Behalf Of Mark KELLY
Sent: Monday, 22 November 2010 11:18 AM
To: Year 12 Software Development Teachers' Mailing List
Subject: [Year 12 SofDev] PSM part 2

Hi all.  The study design's PSM discussion lists Use Cases as being a useful tool to use during physical design.

I would have thought they would be a logical design tool since they are so abstract and emphasise functionality requirements rather than implementation methods.

--
Mark Kelly
Manager Information Systems
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IT Learning Area Manager

McKinnon Secondary College
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Victoria, Australia
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