Acknowledgements

I am honestly grateful to my advisor, Dr. Prasad Wimalarathne, for the support and supervision. My special thanks goes to him too for his help given to me in doing the project and for writing the dissertation 

Above all I would like to thank for our supervisor in Middlesex University, Dr. Chris Sadler; for his kind support. 

My thank goes to ICBT campus MSc course coordinator, Mr. Shalika Chaldera, for the arranging classes and computer labs, for our work. I appreciate with thanks for granting me the support throughout the MSc Programme. 

Finally I would like thank to Manager in Amsafe, Mr. Manula Illangasekara, for granting me leave when required and other equipment supplied throughout the project.