A Mobile Information System for Improved Navigation in Public Transport - User Centered Design, Development, Evaluation and e-Business Scenarios of a Mobile Roadmap Application

End-user friendly interface design is of tremendous importance for the success of mobile applications which are of increasing interest in the e-Business area. In this paper, we present an empirical evaluation of a mobile information system for improving navigation of public transport. High air pollution and respiratory dust, along with other threats to environmental conditions in urban areas, make the use of public transport system less and less a matter of choice. The central hypothesis of this study is that useful, useable and accessible navigation contributes towards making public transport systems more attractive.