Add to ORKGToday, the perspective of business is shifting from a focus on physical products to service production delivered as functional products, often referred to as total care products. This thesis is concerned with the provision of functional products, that is, products that include both hardware and services. The 'seller' of the function must consider the long- term implications of the function provided, including the effects of failure of any part of the functional product. In a functional product, it is necessary to consider the reliability of services as well as that of hardware in order to provide a reliable product. Hardware reliability is an established research area; however, little attention has been focused to date on the reliability of...