To achieve alignment between business and IT has become a daunting task for organizations due to rapid changes in business environment and lack of IT support. Organizations usually strive to bridge the gap by implementing business and IT strategies (i.e. top-down planning) and tend to ignore other aspects of the co-evolution. The co-evolution between business and IT is not restricted to a level but it occurs at all levels and therefore, it is necessary to understand and study co-evolution at all levels within organizations. This book presents a co-evolutionary framework that helps to study and understand the co-evolution at three levels i.e. strategic level, operational level and individual level in an integrated fashion. The three levels need to co-evolve so that all components at each level co-evolve. This framework will speed up the alignment in organizations. A K-mediator (i.e. knowledge mediator) has been used in the proposed co-evolutionary framework that facilitates the co-evolution at each level. Finally the book presents a case study in financial domain in order to evaluate and validated the framework.