Research problem: This study explores how established patterns, means, and services influence the users' first experience when encountering a novel self-service application. The application (DB Cairo) is a passenger information system for public transportation running on mobile phones. Research questions: Is the users' first experience with the application influenced by established communicative patterns, means, and services? Are they used as reference objects? Which attributes of the application are relevant? Is there a leading reference object (prototype)? Do reference objects vary depending on the personal factors age and gender? Literature review: Little is known about user experience in first contact situations regarding passenger information systems. For our investigations, we used a theoretical framework combining Linguistic Evaluation Theory, Prototype Theory, and Linguistic Genre Theory: Evaluations are regarded as an integral part of user experience. Evaluation is conceptualized as an act where a subject evaluates an object with a certain purpose at a certain time by comparing it with other objects. Every object has various attributes-some are relevant for the evaluation, and others are not. Communication quality is seen as a crucial complex attribute for the evaluation of communicative applications. Methodology: We conducted a qualitative study: Data from two user test series with thinking-aloud protocols and retrospective interviews were analyzed with qualitative content analysis procedures. The participants were male and female, age 25-35 or 55-65, mobile-phone users, and multimodal travellers. The tests were conducted in a laboratory with a computer-based mobile-phone emulator. Results and conclusions: Results show that the participants explore the application by comparing its attributes with attributes of reference objects. Reference objects vary depending on attributes of the application. Regarding topic-related attributes, participants rely on established artifacts, which form a topic-related multimedia network. Within this network, the website of German Railways functions as prototype. Age-and gender-specific differences were not detected. The findings indicate that research into user experience and development practice could benefit from reconstructing and analyzing topic-related artifacts. Limitations of the study were a small sample size, the test location, and environment. Future challenges are the investigation of influencing factors and the development of new methods/tools for data collection in field studies.

In the study we explore how users evaluate new selfservice applications for mobile phones. The application under examination is a passenger information system for public transport. The study is part of an interdisciplinary project (Cairo, context aware intermodal routing) and investigates two questions: How do users evaluate the communicative usability of novel applications? Which characteristics are relevant and how does the knowledge about already established communicative patterns, means and services influence their judgements?To explore the users' expectations and mental models user tests were conducted with two groups: younger and older participants. The results show that new applications have to be analysed against the background of established multi-media networks. Within this networks, different media and communicative formats get the status of key solutions and reference objects. Thus, self-service applications as part of media networks require a terminological, structural and visual harmonization.