Workflow on Mobile Phones

Mobile devices and services are rapidly becoming a common property. In this paper, we describe what this development implies in terms of usability of complex services. Management of workflow in the context of interactive services is focussed on. It is shown how to implement workflow on mobile phones, and how to increase the usability of complex services by application of two main categories of design guidelines are presented: Navigation and work flow, and Input and error handling. Ditto user interface design is demonstrated through a concrete case, the 'mobile tax demonstrator', which provides functionality for up- dating information required for tax calculations and consequently for ordering a new tax deduction card.