Table 5: Quality assessment questions.
| General Quality Assessment Questions (GQ) | Score | |||
| Yes 1 | Partly 0.5 | No 0 | ||
| GQ1 | (Motivation and Problem) Do the authors explain the aims and objectives of the primary study? Is there a strong and clear rationale for why the studyis undertaken? | |||
| GQ2 | (Research Environment) Is the context in which the research was carried out adequately described? | |||
| GQ3 | Are the contributions of the study well-presented and in line with the result? | |||
| GQ4 | Are the research methodology and design clearly stated? | |||
| Specific Quality Assessment Questions (SQ) | Score | |||
| Yes 1 | Partly 0.5 | No 0 | ||
| SQ1 | Is the study clearly focused on Web service discovery or Web service recommendation? | |||
| SQ2 | Are the techniques, methods, and algorithms in the study clearly described and linked to their usefulness? (RQ1) | |||
| SQ3 | Does it identify the dataset information (name, location, etc.) for validation? (RQ2) | |||
| SQ4 | Is there more than one evaluation metric used in the study for validation? (RQ2) | |||
| SQ5 | Are the limitations and future directions clearly stated in the study? (RQ3) | |||