eCASA: an easy context-aware system architecture
ABSTRACT In this paper, we present the eCASA system architecture, which allows a service provider to develop and to furnish context-aware mobile services by integrating different service components. These components may be implemented by means of the "off-the-shelf" technologies.
Conference Proceeding: Towards a Location- and Context Aware Middleware.01/2001
Conference Proceeding: People, places, things: Web presence for the real world[show abstract] [hide abstract]
ABSTRACT: The convergence of Web technology, wireless networks, and portable client devices provides new design opportunities for computer/communications systems. In the HP Labs' Cooltown project we have been exploring these opportunities through an infrastructure to support Web presence for people, places and things. We put Web servers into things like printers and put information into Web servers about things like artwork; we group physically related things into places embodied in Web servers. Using URLs for addressing, physical URL beaconing and sensing of URLs for discovery, and localized Web servers for directories, we can create a location-aware but ubiquitous system to support nomadic users. On top of this infrastructure we can leverage Internet connectivity to support communications services. Web presence bridges the World Wide Web and the physical world we inhabit, providing a model for supporting nomadic users without a central control pointMobile Computing Systems and Applications, 2000 Third IEEE Workshop on.; 02/2000
- [show abstract] [hide abstract]
ABSTRACT: Current hardware developments are making mobile computing increasingly attractive. An important class of mobile applications are context-aware applications: applications that change their behaviour according to the user's present context-their location, who they are with, what the time of day is, and so on. This article is about software design for context-aware applications. Currently most such applications have been crafted by experts in research laboratories. Our aim is to factor out a simple class of context-aware applications and make the creation of these as easy as, say, creating Web pagesIEEE Personal Communications 11/1997;