Abstract:
First of all I should thank Almighty Allah for giving me strength, patience and help to complete this research.
I want to acknowledge people who contributed to completion the study and preparation of the research.
Actually, I’m indebted to my supervisor Dr. Mohsen Hassan Abd Allah Hashim to his valuable advice and keen guidance in preparing this project.
A gratefully acknowledgment must be extended to the participation of the staff in the department of computer science and information technology at Sudan University of Science and Technology for all technical help I had received.
Particular acknowledgement must be made to Miss Intesar for her contribution.
I would like to express my grateful thanks to my lovely family for their continuous encouragement and sentiments to complete this work.
