He currently works as a senior principal software engineer and can. Murphys law is a wellknown statement of the need for defensive design, and also of its ultimate limitations. Making the software behave in a predictable manner despite unexpected inputs or user actions. Is the ability of software to function even in abnormal conditions. He currently works as a senior principal software engineer and can be contacted at email protected. Defensive programming entails many different things, even though they all revolve around handling the unexpected. Some of the main concepts strictly copied from the book, with my words so, it may be better to. Defensive programming is an approach to improve software and source code, in terms of. Defensive programming is yet another concept in software development or in life, for that matter. Defensive programming is when a programmer anticipates problems.
John robbins, cofounder, wintellect solid code isnt just about code. Defensive design in software engineering is called defensive programming. Is the ability of software to exactly perform their tasks, as defined by the requirements and specifications. For me it was the best source for this kind of technique so far. Defensive programming is a practice where you anticipate failures in your.
I talked a bit about defensive programming in my february post. Defensive programming is a form of defensive design intended to ensure the continuing function of a piece of software under unforeseen circumstances. Defensive programming techniques software engineering stack. Nasa coding standards, defensive programming and reliability. Defensive programming defensive programming secure programming. Defensive programming techniques software engineering. Defensive programming techniques are used especially when a piece of software could be misused. Is the ease with which software may be adapted to changes of specifications.
Defensive programming practices are often used where high availability, safety, or security is needed. Lets look at alexs three rule of defensive programming. An important aspect that we agreed upon very quickly was this. Defensive programming is a practice where developers anticipate failures in their code, then add supporting code to detect, isolate, and in some cases, recover from the anticipated failure. Range of similar vulnerabilities exploited over time cert injection attacks ex 12. Software engineering techniques 2 software quality correctness.
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