The second volume of 'Advances in Computers and Software Engineering: Reviews' Book Series contains five chapters written by 10 authors from 4 countries: Canada, China, Italy and UK.This book ensures that our readers will stay at the cutting edge of the field and get the right and effective start point and road map for the further researches and developments. By this way, they will be able to save more time for productive research activity and eliminate routine work. With this unique combination of information in each volume, the 'Advances in Computers and Software Engineering: Reviews' will be of value for scientists and engineers in appropriate industry and at universities.