This paper explores the role of prototyping in Service Design. It questions different ways of prototyping such as a walk through, the use of external representations and it looks at how a prototype helps the design process in the future. The paper also looks at what prototypes really are.
What I found most interesting is the explanation that there must be made a difference when talking about designing for services or designing of services. He looks at whether the question is to make a new service or if you design for an existing service. Blomkvist connects this information with using services as a design material, which I would love to see happening. The reason why I think this is an interesting way to position service design is because you get more playground with the company or institution you work for. If you can show how the material takes shape it means you can influence it, thus influence the users.