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Auflistung nach Autor:in "Maass, Wolfgang"

1 - 4 von 4
  • Konferenzbeitrag
    Designing ubiquitous information systems based on conceptual models
    (INFORMATIK 2011 – Informatik schafft Communities, 2011) Janzen, Sabine; Filler, Andreas; Maass, Wolfgang
    Ubiquitous Information Systems (UIS) support single actors and groups by services over ubiquitous computing technologies anywhere and anytime. These systems require design approaches that keep a holistic view of situations in which single users and groups interact with one another and with accessible services. We introduce and exemplify the Situational Design Methodology for Information Systems (SiDIS) that uses three types of Conceptual Models (CMs) and corresponding translation procedures. This contribution focus on the specification and translation of the CMs as well as their processing by the resulting UIS.
  • Konferenzbeitrag
    Integration of Standardized and Non-Standardized Product Data
    (Informatik 2007 – Informatik trifft Logistik – Band 1, 2007) Maass, Wolfgang; Lampe, Matthias
    Smart products adapt to environments, process contexts, users and other products. Standardized product data such as BMECat, eCl@ss, and EPC global formats are designed to support the exploitation of product data and therefore contribute to more efficient supply chains. Non-standardized product data mainly target soft benefits which targets the exploration of product data [Su04]. We present an extended product data model (SPDO) that integrates standardized and non-standardized product data. The SPDO model consists of five product information types that receive product data and, if available, associated explicit semantics. Explicit semantics are used for advanced services, such as compatibility testing or product bundling. Exemplified by the GS1 approach, we present how standardized product data is retrieved via RFID-based Electronic Product Codes (EPC) and stored in SPDO instantiations.
  • Konferenzbeitrag
    Towards an infrastructure for semantically annotated physical products
    (INFORMATIK 2006 – Informatik für Menschen – Band 2, Beiträge der 36. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2006) Maass, Wolfgang; Filler, Andreas
    Small-scale wireless communication technologies allow for situated consumer-product communication during buying decision making. We present the status of a generic model and implementation of semantically annotated physical products and an associated mobile and web-based infrastructure. Cornerstones are a RDF-based container model for semantic product descriptions (SPDO), an appropriate web-based product query language (PQL) and a web-service middleware infrastructure (Tip 'n Tell).
  • Konferenzbeitrag
    Trading semantically enhanced digital products in electronic markets
    (Pragmatic web – Proceedings of the first international conference on the pragmatic web, 2006, 2006) Maass, Wolfgang; Behrendt, Wernher
    Digital products constitute a growing class of economic goods that are increasingly traded via digital networks. In distributed digital networks, it is required that digital products adapt to heterogeneous requirements of electronic markets and subsequent usage environments. Adaptation depends on various kinds of information types that characterise a digital product. In this article we will present a self-describing container model for digital products, called KCO, that integrates characteristic semantic information types (facets) derived from an analysis of electronic market structures. Semantic information supports usage of digital products throughout the whole product life-cycle. During purchase decision phases, facets offer semantically annotated data on the quality and applicability of a digital product while in usage contexts, facets provide data that can be used by content management systems for content processing tasks, such as access control, routing, syndication and aggregration. KCOs allow exchanges between existing heterogeneous application environments on the basis of an open Knowledge Content Transfer Protocol (KCTP) that is part of a general architecture (Knowledge Content Carrier Architecture, KCCA). All architectural elements have been used in three application environments.1