This chapter argues that user centred design and evaluation of home care technologies is fundamental for their success. Designing technologies that work and that are acceptable to users is a significant challenge. Including users in the process of design and development increases the likelihood for products that result in good usability and positive user experiences. This in turn should lead to increased uptake and success of assisted living technologies in the homes of users. This chapter provides a brief overview of user centred design methods and presents several examples of how these have been used in the MATCH project in the design of technologies to support care at home. We also present some emerging guidelines for the design of home care technologies.