Design and Code Reliability Metrics

The quality factors that exists in design and coding plan are complexity , size and modularity.

 If  there exists more complex modules, then it is difficult to understand and there is a high probability of occurring errors. So complexity of the modules should be less.

Next coming to size, it depends upon the factors such as total lines, comments, executable statements etc. According to  SATC , the most effective evaluation is the combination of size and complexity.

The reliability will decrease if modules have a combination of high complexity and large size or high complexity and small size. In the later combination also the reliability decreases because , the smaller size results in a short code which is difficult to alter.

These metrics are also applicable to object oriented code , but in this , additional metrics are required to evaluate the quality.