By Marshall C. Yovits
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Extra info for Advances in Computers, Vol. 31
Nobody knows whether the old software was really improved — probably in many cases no changes had been required but nobody knows the truth. The Costs of Software Errors It is difficult to make precise estimations of costs caused by software errors. 4 billions annually. The study says that although not all errors could be removed it is estimated that a third of them could be removed by improved testing infrastructure. The interesting but sad conclusion from reading that study is that the authors believe that only better testing can improve software quality.
A programmer must still convert very complex requirements into a working application using primitive instruction sets. The resulting code is extremely hard to read, let alone analyze to study its behavior in all situations. The development environments of programming languages offer large and sophisticated libraries to support programmers’ work: MFC libraries in Microsoft Visual Studio or STL library are good examples of them. Without such libraries, today’s programming tasks would not be realizable.
Before we look more closely at the reasons for constantly increasing software development costs we should like to define what we really mean when speaking about software. Many misunderstandings start with the lack of agreement: where the topic “software development” actually begins. To expose better the problem we define three groups of software: hobby, small, and large projects. Once I read a nice book written by a famous physicist. A group of physicists had tried to understand some physical phenomena and they needed software to calculate some formulas.