ISSD Fall 2010 School of Information, UC Berkeley

The design of any service -- whether it will be performed by people or by information systems -- takes place in a context of: • Current and potential customers • Current and potential technologies • Current and potential competitors • Existing services or systems • Existing user or application interfaces • Legal, regulatory, cultural systems and constraints These factors or constraints can never be equally important; how they are weighted determines the appropriate design methodology and the key characteristics of the design.