Customer-developer links in software development
Communications of the ACM
Field methods casebook for software design
Field methods casebook for software design
User-centered requirements: the scenario-based engineering process
User-centered requirements: the scenario-based engineering process
User and task analysis for interface design
User and task analysis for interface design
Contextual design: defining customer-centered systems
Contextual design: defining customer-centered systems
Social Analysis in the Requirements Engineering Process: From Ethnography to Method
RE '99 Proceedings of the 4th IEEE International Symposium on Requirements Engineering
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Not much empirical evidence has been presented to evaluate the usefulness of user studies or the optimal amount of resources to allocate to them. This study is an initial step to understand the costs and benefits of user studies in the early stages of product development. In a case study a psychologist, who was not a designer, performed a user study and developed design propositions. The results were compared to a baseline design process with usability tests. The results show that the user study was useful although the investment of 46 person hours was modest. The design propositions based on the user study results made the product more usable and desirable to the users.