Software design and embedded system tools.

V-model

V-model is software development model.It is improve from the waterfall model. V-model is normally used for manage the software development project in the large company (Japaneses company).

V-model is also called verification and validation model (V&V). It has a very intensive testing in order to eliminate the bug/error that may be occur during each stage of development project using V-model.

You can see the picture of V-model as below…

V-model

V-model_2

*The picture above is come from here http://tensai-lab.engr.tu.ac.th/wp-content/uploads/2009/06/slide03a-sw-eng.swf

For the detail what is each stage in the V-model do, I suggest you find the information on these sites.

1.www.bucanac.com/documents/The_V-Model.pdf

2.http://en.wikipedia.org/wiki/V-Model

3.www.v-modell.iabg.de/kurzb/vm/k_vm_e.doc

4.http://en.wikipedia.org/wiki/V-Model_%28software_development%29

Advantage of V-model.

- The defect or bug can be found in the early stage.

- It is trustworthy software development model that used widely in the big company.

- V-model can be done parallel in each side of “V” (Left and right side),
that mean the testing (Right side) is acting like planning (Left side). The tester must design the test case and the testing team is joined early in the project development life cycle ,so they will receive a good
understanding of the project at the very beginning .

Disadvantage of V-model.

- Use a lot of money and resource to implement the complete V-model

- Suitable for the large project which have to do for long term (not suitable of short term project because it need to review at each stage).

- Test is important , by ignore any one of test phase may affect the quality of product.

- No prototype software can be made because the software is developed in
the implementation phase.

- It is rigid and least flexible (if something happen or change in during the middle stage of V model,
the requirement document and the test document is also need to update)

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Related posts:

1. Software Process and Software Development model.
2. Agile software development model II.
3. Agile software development model I.
4. Software testing part I.