Software Systems Architectures Mobile Computing Proposed Research Topics

Software & Systems Architectures - Mobile Computing Proposed Research Topics Cooperation between Siemens and UCB March 27, 2001 Visit of Prof. Katz and Prof. Joseph at CT SE 2 © Siemens AG 2001

Software & Systems Architectures - Mobile Computing Service Composition < Def. : Service composition/aggregation = combine low-level basic services to high-level composite services in a dynamic fashion < Subtopics: =Description format/language for service interfaces and properties =Description format/language for service interrelations/interactions =Loose vs. tight coupling of basic services =Preservation of consistency within higher-level services =Matching of services based on service capabilities and user preferences < Cross-section topics: =Security issues =Physical distribution of service space (server vs. client / download) =Technical foundations for new business models < Time frame: 6 – 12 months (depends on level of detail and experience of student) Contact: Jochen. Sauter@mchp. siemens. de 2 © Siemens AG 2001

Software & Systems Architectures - Mobile Computing Security & Acceptance of Context-aware Systems < Area of Interest = Context-aware Applications in the Mobile Internet = Example: Weather Information for tomorrow < Open Issues = Users have reservations against context being collected about them and used by untrusted applications < Proposed Concepts = Access Control to Context has to be introduced = Context should be stored „near“ the user = Engines to personalize Applications without revealing Context < Suggested Task = Identification of current situation (use of context, parties involved) = Consideration of cultural aspects (e. g. privacy, security) = Derivation of typical scenarios, requirements for future architectures = Design and implementation of software component Contact: Lars. Mehrmann@mchp. siemens. de 3 © Siemens AG 2001

Software & Systems Architectures - Mobile Computing Value based Pricing for Mobile Multimedia Services < Future Mobile Networks: =Different services =Current billing schemes do not work < => Pricing based on content needed < Sample Problems: =How to differentiate content? =How to handle interrupted downloads =How to handle prepaid accounts? < Proposed work: =Determine requirements of users/ operators/ service providers and suggest/ prototype solutions Contact: Konstantin. Keutner@mchp. siemens. de 4 © Siemens AG 2001