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An Engineering Information Service Infrastructure for Ubiquitous Computing

TitleAn Engineering Information Service Infrastructure for Ubiquitous Computing
Publication TypeTechnical Report
Year of Publication2002
AuthorsLiu, D, Cheng, J, Law, KH, Wiederhold, G
Date Published10/2002
Publication Languageeng
KeywordsActive Mediation, Center for Integrated Facility Engineering, CIFE, FICAS, PSL, Service Integration, Stanford University, Ubiquitous Computing
AbstractThis paper describes a software framework for the development of a ubiquitous computing environment for distributed engineering information services. Two fundamental issues are addressed: (1) universal accessibility from devices to information services, and (2) collaboration among the parties accessing the information services. The first issue calls for the development of device independent information services that have flexibility to support wide range of client devices. We introduce a mediation-based framework that enables the information clients to calibrate the source information services to the clients' characteristics. The second issue requires effective integration of information services. We address the issue from two aspects. First, information models are required so that heterogeneous information services can communicate with each other. We define an ontology standard and describe how such standard can be effectively applied for exchanging scheduling information. Secondly, service integration requires an environment so that information services can be managed and directed to perform tasks in collaboration. We illustrate an infrastructure that is particularly suitable for the integration of engineering services. A prototype for the ubiquitous computing environment has been developed that incorporates a variety of project management software as well as different devices ranging from PDA, web browsers, desktop computers, and servers.
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