Software inspections and pair programming
By: DEEP RAJ

Inspection in simple words means examine and when we speak of Software inspections it means an extra-ordinary technique which is used to identify errors in a program. The concept of software inspection can be dated back to 1970 and it has proven to be a time tested technique which has yielded unparallel results. Computer program(s) can have numerous types of errors ranging from very simple to complex. Errors like redundant logic, unused variables, unlatching comments, incorrect Boolean tests, and much more can be detected before the product is marketed only through software inspections.

Using software inspections has its own advantages and I would say that the famous saying “A stitch in time saves nine” goes perfectly with software inspection. There have been surveys which proven that the cost of correcting errors is much less when detected early as compared to the cost when the errors are detected at a later stage. The basic idea of using software inspection is to deliver superior quality products. Software inspections have now become a vital part of software development. But then the crux of the success lies in the proper application of the techniques of software inspection. The inspection team members may it be a Moderator, an Author, a Reader, a Recorder or an Inspector needs to work in coordination and perform the special task assigned to give the top results. It is imperative that the all software inspections are planned and performed in an orderly manner. The guiding principle should be to let us find the defect and not the customer. In a nut shell Software inspection provide value in improving software consistency, accessibility and maintainability.

Pair Programming

Pair programming truly implies the literal meaning of “Pair”. It’s simple! Isn’t it. Yes! it means two programmers, one known as driver and the other as the navigator work side by side to develop a software. Pair programming has its own pros and cons. The advantages tagged with Pair programming is that it increases design quality, dwindles the error chances, increases discipline, helps in knowledge sharing, helps creating better solutions and above all it creates and atmosphere of healthy competition amongst the workers each want to excel. It is true to say that two programmers are bound to give more than twice as productive as one for a given task.

Pair programming has its own disadvantages, personality conflicts being the most common one. It becomes very difficult to compare the performance of individuals. It is a “Herculean” task to rope in an experienced developer with a less experienced one, the senior one could impose “Do it my way or get out”. Another major drawback is to synchronize the two different programming styles of the two programmers put to work under pair programming.

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