M. Ayman  Al-Ahmar, 
    An Object-Oriented Expert System for Diagnosis of Fungal Diseases of Date Palm,
    International Journal of Soft Computing,
    Volume 4,Issue 5,
    2009,
    Pages 201-207,
    ISSN 1816-9503,
    ijscomp.2009.201.207,
    (https://makhillpublications.co/view-article.php?doi=ijscomp.2009.201.207)
    Abstract: In this study, an Object-Oriented (O-O) prototype Expert System (ES) for diagnosis of fungal diseases of date palm is presented. The objectives are to investigate, the potential of a proposed O-O model for expert systems and to provide intelligent computer-based support for farmers or agricultural specialists. The modeling of the system is based on O-O database and O-O rule base. An overview of the system's model and a description of its implementation are presented. The architecture of the ES resulted in a successful and flexible system that enhances soft computing and can also be used to develop expert systems for other domains.
    Keywords: Expert system;object-oriented modeling;object-oriented database;object-oriented rule base;date palm;fungal disease