Inside AdSense: The story must go on...

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Inside AdSense: The story must go on...: "L"

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Cyclomatic complexity

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Cyclomatic complexity is a software metric (measurement). It was developed by Thomas McCabe and is used to measure the complexity of a program. It directly measures the number of linearly independent paths through a program's source code. It is computed using a graph that describes the control flow of the program. The nodes of the graph correspond to the commands of a program. A directed edge connects two nodes if the second command might be executed immediately after the first command. Definition M = E − N + 2P where M = cyclomatic complexity E = the number of edges of the graph N = the number of nodes of the graph P = the number of connected components. "M" is alternatively defined to be one larger than the number of decision points (if/case-statements, while-statements, etc) in a module (function, procedure, chart node, etc.), or more generally a system. Separate subroutines are treated as being independent, disconnected components of the program's control flo...
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v model to w model

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V-Model: The V-model promotes the idea that the dynamic test stages (on the right hand side of the model) use the documentation identified on the left hand side as baselines for testing. The V-Model further promotes the notion of early test preparation. The V-Model of testing Early test preparation finds faults in baselines and is an effective way of detecting faults early. This approach is fine in principle and the early test preparation approach is always effective. However, there are two problems with the V-Model as normally presented. The V-Model with early test preparation There is rarely a perfect, one-to-one relationship between the documents on the left hand side and the test activities on the right. For example, functional specifications don’t usually provide enough information for a system test. System tests must often take account of some aspects of the business requirements as well as physical design issues for example. System testing usually draws on several sources of re...
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