Designing claims for reuse in interactive systems design

Claims are proposed as a means of expressing HCI knowledge that is associated with a specific artifact and usage context. Claims describe design trade-offs and record HCI knowledge related to a specific design, or artifact, as psychological design rational. Claims are created in the task-artifact cycle of interactive design and evaluation. Usability evaluation establishes a claim for a specific usage context, but this can be restrict subsequent reuse of claims-related knowledge. To widen the scope of reuse the knowledge contained within claims and their associated artifacts has to be classified and generalized. To address this problem, a schema and method for classifying claims is introduced.