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Program Design Language
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<p>Program Design Language (or PDL, for short) is a method for designing and documenting methods and procedures in software. It is related to <a href="/facts/Pseudocode/XgN19duK">pseudocode</a>, but unlike pseudocode, it is written in plain language without any terms that could suggest the use of any programming language or library. </p><p>PDL was originally developed by the company Caine, Farber & Gordon and has been modified substantially since they published their initial paper on it in 1975. It has been described in some detail by <a href="/facts/Steve_McConnell/CaKllK0J">Steve McConnell</a> in his book <i><a href="/facts/Code_Complete/zIJoXy2n">Code Complete</a></i>. </p>