Firms are using information systems to build sustainable competitive advantage and these systems are subject to change when the organization is responding to change from external forces. This book focuses on the three dimensions of information systems i.e. technology, strategic leadership and organization characteristics including business processes, structure and culture and how these are managed during strategic change of information systems to build competitive advantage. With Porter's five-force model and the value chain model the book acts as a guide for change managers and corporate leaders as it gives an insight to airlines on forces driving change, effect of technology on competitive advantage, extent to which organization characteristics impact on competitive advantage and the role of strategic leadership on sustainable competitive advantage during strategic change. With constant change being the norm in modern organizations, and sustainable competitive advantage being the answer, this should be a pocket manual for every team leader, fast-track manager and academic referencing.