The intangible nature of the tourism product where it is impossible for consumers to physically evaluate the services on offer prior to practical experience makes the availability of credible tourism recommendations very compelling. Also, the advent of new technologies like mobile computing and the semantic web has led to increased sophistication and dynamism of tourism consumer behavior. Hence, literature must find means of addressing these challenges. This book provides a new approach that leverages concepts from Software Product Line Engineering and Ontology Engineering as a way of...