2 Qualitative Methods to diagramming techniques used in software development (e.g. control flow diagrams, statecharts,
process models, class diagrams. These are especially appealing for software engineering studies because they are already familiar to our community.
While maps can be used fora variety of analysis tasks, one specific use is particularly handy when the qualitative
work is exploratory, and intended to lay the groundwork for further empirical work. A good map of concepts and relationships can serve as a research plan for followup studies by defining the concepts (i.e. shapes) that need to be developed in further exploratory studies,
and the hypotheses (i.e. relationships represented as lines) upon which further confirmatory work can be based. One version of this type of map is the causal network (Miles and
Huberman, 1994), a simple example of which is shown in Fig. 5, which identifies factors affecting the efficiency of a software inspection. Such a map can be annotated to show the hypothesized (or tested) strength of the relationships and references to supporting evidence (e.g. identifiers for informants or coded segments).
Creating visual models of qualitative data, and the findings
resulting from that data, is a very useful tool for qualitative researchers. Modelling is useful in two ways during analysis to sort out ideas and relationships and during presentation as away to convey findings to the reader. Modelling can be seen as a form of data reduction because diagrams simply take up less space, and are more
quickly scanned and digested, than text. They also depict insights arising from the data that are difficult to express succinctly in words.
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