Examining the Usability of Islamic Thesaurus-based Offline Databases Based on ISO 9241 and ISO 16982

The aim of this study was to find out the usability of Islamic thesaurus-based offline databases based on ISO 9241 and ISO 16982. The research was applied through an analytical survey method. The Statistical population contains 30 researchers of Islamic sciences. To gather information and collect data, the questionnaire technique were used. The researchers were answered the questions about Figh principles databaseswith the following rating: to those related to criterion “navigation”, 52/2% responded "yes", 33/1% responded "approximately" and 19/5% answered "no" and about questions relating to the criterion "search", 40/7% responded yes, 35/2% responded approximately, and 28/9% answered “no”. About Quranic science database the answers related to criterion “navigation”, have this rating: 53/7% responded "yes", 29/5% responded "approximately" and 21/2% answered "no", and about the criterion "search", 46/8% responded "yes", 26/6% responded "approximately", 27/9% answered "no". From the viewpoint of the researchers, the databases examined support almost half of the features of the search and navigation criteria and the other half should be considered for improving the usability.