V – Model


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The V-Shaped Model


V-Model evolved from waterfall Model.

Each phase must be completed before the next phase begins.

Instead of moving down in a linear way, the process steps are bent upwards after the coding phase, to form the typical V shape.

Testing is emphasized in this model more than in the waterfall model.

It is a structured approach to testing.

Brings high quality into the development of our products


Stage Containment


This term is used to identify problems existing in the product being developed before proceeding to the following stage.

More errors than defects.
Cost and effort for fixing problems is minimized.

Entry and Exit Criteria


Entry Criteria
The Term Entry Criteria refers tot the input conditions required from the previous processes to support a specific stage.

Exit Criteria
The term Exit Criteria refers to the output conditions required by a specific process to determine its thoroughness and correct completion.
The Exit Criteria for one stage can constitute part of the Entry Criteria for the following stage.