White box (software engineering)
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A white box (or glass box, clear box, or open box) is a subsystem whose internals can be viewed but usually not altered.[1] The term is used in systems engineering, software engineering, and in intelligent user interface design,[2][3] where it is closely related to recent interest in explainable artificial intelligence.[4][5]
Having access to the subsystem internals in general makes the subsystem easier to understand, but also easier to hack; for example, if a programmer can examine source code, weaknesses in an algorithm are much easier to discover.Template:Fact That makes white-box testing much more effective than black-box testing but considerably more difficult from the sophistication needed on the part of the tester to understand the subsystem.
The notion of a "Black Box in a Glass Box" was originally used as a metaphor for teaching complex topics to computing novices.[6]
See also
References
- ↑ Patrick J. Driscoll, "Systems Thinking," in Gregory S. Parnell, Patrick J. Driscoll, and Dale L. Henderson (eds.), Decision Making in Systems Engineering and Management, 2nd. ed., Hoboken, NJ: Wiley, 2011, 40.
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