The Folk Model – What We Really Build Software From

The anthropological notion of a “folk model” can be a useful paradigm to consider when analyzing the implementation of software applications. Folk models are the proto-scientific conceptualizations of a group of people which they use to describe, understand and interact some aspect of their collective experience.

When writing software, especially but not only within the Agile approach, it is the through the elicitation and joint “discovery” of the user’s folk model that a common set of requirements for the software is defined. Ultimately, it is the closeness of fit between the folk model and the operation and symbology of the software that will determine its success or failure.

Different groups of people faced with the same or similar problems may develop largely similar folk models, and from these, different software development teams may create largely similar software applications. This is one reason why the software development process works best as a hand-crafted enterprise.

But what at first appears to be minor discrepancies between what the software model presents and what the folk model expects can grow so large that it can cause the failure of the software for those users. Especially if the folk model was flawed or in a state of flux at the time the software tried to codify it (and really, when is a folk model not in flux?).

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