Table 2.

Previous works on AHOP.

Previous works	Key characteristics
[18, 20]	It describes the definition, calculation procedures, and application areas of AHP method
[21]	It provides a decision making model for selection of automobile using AHP
[22]	It provides the decision criteria and decision model, which are based on AHP, for introduction of expert system which could be used in education environments
[23]	It shows a decision model which supports an introduction of multimedia authoring tool for multiple decision makers