Table 1 Research questions

RQ1: What are the key quality characteristics possessed by the OSS quality assessment models?

To identify the most significant attributes possessed by the existing OSS quality assessment models in order to guide future proposals

RQ2: What are the methods used by these OSS quality assessment models for selection decisions

To identify the techniques used when applying the models to a selection scenario

RQ3: What is the domain of application of OSS quality assessment models?

To identify the software domains covered by the existing OSS quality assessment models, in addition to the targets of future studies