Amany Sarhan, received the B. Sc degree in Electronics engineering, and M.Sc. in Computer Science and Automatic Control from the Faculty of Engineering, Mansoura University, in 1990, and 1997, respectively. She awarded the PhD degree as a joint research between Tanta univ., Egypt and Univ. of Connecticut, USA. She is working now as an Assistant Prof. at Computers and Automatic Control Dept., Tanta Univ., Egypt. Her interests are in the area of: Network Security, Software restructuring, Object-oriented Database, Fragmentation and allocation of databases and distributed systems and Computations.