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[21] B. Khaled, R. Mahmoud, El. Salwa, and T. Khaled. (2004), Knowledge Representation and Reasoning Using XML, 2nd international Artificial Intelligent, Cairo Mofreh A. **Hogo** is a lecturer at Benha University, Egypt. He is a lecturer of Computer Science and Engineering. Dr. Hogo holds a PhD in Informatics Technology from Czech Technical University in Prague, Computer Science and Engineering Dept. 2004. He is the author of over 40 papers that have been published in refereed international Journals (Information Sciences, Elsiver, UBICC, IJICIS, IJCSIS, IJPRAI, ESWA, IJEL, 
Web Intelligence and Agent Systems, Intelligent Systems, international journal of NNW, IJAIT Journal of Artificial Intelligence Tools, IJCI) and Book chapters (Neural Networks Applications in Information Technology and Web Engineering Book, Encyclopedia of Data Warehousing and Mining, and Lecture Notes in Artificial Intelligence Series), and international conferences (Systemics, Cybernetics and Informatics Information Systems Management, IEEE/WIC, IEEE/WIC/ACM, ICEIS). His areas of interest include Digital Image Processing, Multimedia Networks, Intrusion detection, Data Mining, Data Clustering and classification, pattern Recognition, character recognition, fuzzy clustering, artificial Neural Networks, Expert systems, Software Engineering. 

Khaled **Fouad** is an assistant lecturer at Central 

![0_image_0.png](0_image_0.png) Lab. for Agricultural Expert Systems (CLAES), as he working in his Ph.D program. He interested in Programming, Web design, Internet and its applications Development, and Expert Systems applications Development. 

Fouad **Mousa** is associate professor at Business management Dept,Faculty of commerce, Assuit university. 