A Guide to selecting software measures and metrics by Capers Jones

By Capers Jones

Going the place no booklet on software program size and metrics has formerly long gone, this critique completely examines a couple of undesirable dimension practices, damaging metrics, and enormous gaps and omissions within the software program literature that forget very important themes in size. The ebook covers the main gaps and omissions that must be crammed if facts approximately software program improvement is to be important for comparisons or estimating destiny projects.

Among the worse gaps are leaks in reporting approximately software program improvement efforts that, if now not corrected, can distort facts and make benchmarks virtually lifeless and doubtless even damaging. probably the most universal leaks is that of unpaid additional time. software program is a truly labor-intensive career, and plenty of practitioners paintings very lengthy hours. even if, few businesses truly list unpaid additional time. which means software program attempt is underreported by way of round 15%, that is too huge a price to disregard. different resources of leaks contain the paintings of part-time experts who come and move as wanted. There are dozens of those experts, and their mixed attempt can best forty five% of overall software program attempt on huge projects.

The ebook is helping software program venture managers and builders discover mistakes in measurements to allow them to improve significant benchmarks to estimate software program improvement efforts. It examines adaptations in a few parts that come with:

  • Programming languages
  • Development methodology
  • Software reuse
  • Functional and nonfunctional requirements
  • Industry type
  • Team measurement and experience

Filled with tables and charts, this ebook is a place to begin for making measurements that mirror present software program improvement practices and realities to reach at significant benchmarks to steer profitable software program tasks.

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Extra resources for A Guide to selecting software measures and metrics

Example text

In addition, of course, for testing itself it is beneficial to use formal mathematical methods for test case design such as cause–effect graphs and design of experiments. Also, formal testing should use more certified test personnel instead of informal testing by untrained developers. It would be technically possible to improve software development by more than 50% reduction in software wastage by more than 90% within 10 years if there were a rapid and effective method of technology transfer that could reach hundreds of companies and thousands of software personnel.

1 shows the comparative accuracy of measured information for 15 technical and scientific fields. 87 50 ◾ A Guide to Selecting Software Measures and Metrics Wastage, poor quality, poor metrics, poor measurements, and poor technology transfer are all endemic problems of the software industry. This is not a good situation in a world driven by software that also has accelerating numbers of cyber attacks and looming cyber warfare. All of these endemic software problems of bad metrics and poor measures are treatable problems that could be eliminated if software adopts some of the methods used by medicine as discussed in Paul Starr’s book The Social Transformation of American Medicine (1982).

Web masters One of the most common management reactions when projects start to run late is to add more people. Of course this sometimes slows things down, but it is still a common phenomenon as noted years ago by Dr. Fred Brooks in his classic book The Mythical Man-Month (1975). Here too the software literature and software benchmarks are strangely silent. If the average complement of software engineers for 1,000 function points is six people, what would happen if it were increased to 10 people?

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