SD & D Evaluation
-
Upload
forrester-high-school -
Category
Education
-
view
170 -
download
1
Transcript of SD & D Evaluation
Evaluation
The evaluation stage of the software development process requires the client and developer to review the software.
Broadly speaking, they evaluate against the following questions:
1.Does this software meet the user requirements?
2.Is it fit for purpose?
Evaluation
To answer these questions, the original aims of the software must be evaluated against the following criteria.
1.Correct2.Robust3.Reliable4.Efficient5.Readable6.Maintainable7.Portable
Evaluation - criteria
CorrectDoes the program meet the software specification?
RobustThe program responds to unexpected input and does not crash
Which is robust…?
ReliableThe program does not have any logic errors and produces output which can be relied upon to be correct
This program is correct and robust. But is it reliable?
EfficientThe program makes efficient use of resources
eg processor, memory, external devices
Size and speed should be proportionate to the problem being solved
ReadableA program should be readable to another programmer. This means using:meaningful variable namesmeaningful subprogram nameswhitespaceinternal commentary
MaintainableIt should be possible to easily carry out future changes to the program:Readable codeFull documentationVersion controlDesign process with maintenance in mind
PortableThe program can be adapted to run on a different Operating System
The software should be evaluated by client and developer at all stages in the process, not just when the software is complete.
e.g. How well the client’s problem has been understood
should be evaluated at the analysis stageThe HCI should be evaluated at the design stage
Evaluation - when