|In the design of desktop applications, developers successfully deploy structured software life cycle mod-els to simplify the development process. Applying these models in m-business often does not result in usable software. M-business applications differ from desktop applications mainly in their limited user interface as well as the new mobile and dynamic application con-text. Traditional software life cycle models do not con-sider these characteristics. Although, current mobile literature describes how m-business applications must be developed, they do not give structured guidelines for the development process of mobile user interfaces.|
In this paper we propose an m-business procedure model for the development of mobile user interfaces. The model is based on established software engineer-ing and Human Computer Interaction design princi-ples. It is concretized with detailed development rec-ommendations regarding mobile issues and usability goals. An in-depth case study at a US software devel-opment company builds the basis for validation of the model’s practicability.