Preventative Programming Techniques: Avoid and Correct by Brian M. Hawkins

By Brian M. Hawkins

Preventative Programming strategies offers programmers with a transparent and clever method of detecting, combating, and correcting the most typical error. It comprises sensible how you can decrease difficulties that take place each day, and gives equipment for correcting difficulties that exist already. utilizing a clinical metaphor, all the universal difficulties is gifted as an ailment. each one sickness is then provided in a dependent procedure that features a easy description, universal signs, prevention tools, therapies, and similar health problems to seem for.The majority of the foundations and practices espoused are language self sustaining and concentrate on teaching programmers easy methods to discover and steer clear of difficulties. it's also guidance on picking out while and the way to refactor or rewrite code. the various significant and minor health problems came across all through programming, contain untimely optimization, CAP (cut and paste) epidemic, NIH (not invented right here) syndrome, complexification, oversimplification, docuphobia, and extra. in case you are a programmer, you could have made those errors or you have needed to take care of code that has them in it.To methods to hinder and connect those difficulties, try out the entire illnessesyou're certain to locate insightful counsel on your personal initiatives. amateur programmers will profit significantly from analyzing via every one class of disease from begin to end, and skilled programmers will enjoy the insightful advice and anecdotes.

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It is necessary to profile after every change to compare the performance with and without the change. If the change impairs performance, then reversion to the old code should be made. Even if there is no effect on performance, the reversion should be made, because any change presents a risk to the stability of the application. It would be unwise to take such a risk unless the gain is sufficient. Creating profiling tests is easy for non-interactive applications, but a little bit more work is required to create repeatable tests for interactive applications.

Profile (profiler) 4. Test (test framework) 5. Keep or revert (source control) Each of these steps is important, and therefore the tools that are associated with them are a necessary part of the development process. 2007 12:28:38] Summary < Day Day Up > Summary Premature Optimization symptoms are: ● Most optimizations performed before the final stages of development. ● Poor readability and maintainability caused by optimized code. ● Unnecessary constraints imposed early in development. ● Poor optimizations performed early without the necessary knowledge of the complete application.

Sometimes this optimization is not even performed when it is necessary, leading to missed deadlines, extra expense, and in some cases project cancellation. Therefore, you will rarely see this type as a premature optimization, and instead should look for the opposite case of resistance to change or remove features when approaching the end of development. Why Past Mistakes One common occurrence that leads to our assumption that we know what is slow and how to take care of it early is our attempt to learn from past mistakes.

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