How to Use Software Metaphors
A software metaphor is more like a searchlight than a road map. It doesn't tell you where to find the answer; it tells you how to look for it. A metaphor serves more as a heuristic than it does as an algorithm.
An algorithm is a set of well-defined instructions for carrying out a particular task. An algorithm is predictable, deterministic, and not subject to chance. An algorithm tells you how to go from point A to point B with no detours, no side trips to points D, E, and F, and no stopping to smell the roses or have a cup of joe.
A heuristic is a technique that helps you look for an answer. Its results are subject to ...
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