Integration Testing

[rjames]

Even if a software component is successfully unit tested, in an enterprise n-tier distributed application it is of little or no value if the component cannot be successfully integrated with the rest of the application.

Once unit tested components are delivered we then integrate them together.
These “integrated” components are tested to weed out errors and bugs caused due to the integration. This is a very important step in the Software Development Life Cycle.

It is possible that different programmers developed different components.

A lot of bugs emerge during the integration step.

In most cases a dedicated testing team focuses on Integration Testing.

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