  New, emerging domains such as the engineering of wireless Internet services
are characterized by a lack of experience based on quantitative data.
Systematic tracking and observation of representative pilot projects can be
seen as one means to capture experience, get valuable insight into a new
domain, and build initial baselines. This helps to improve the planning of real
development projects in business units. This article describes an approach to
capture software development experience for the wireless Internet services
domain by conducting and observing a series of case studies in the field.
Initial baselines concerning effort distribution from the development of two
wireless Internet pilot services are presented. Furthermore, major
domain-specific risk factors are discussed based on the results of project
retrospectives conducted with the developers of the services.
