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Event heap: a coordination infrastructure for dynamic heterogeneous application interactions in ubiquitous computing environments

Patent ·
OSTI ID:1176248
; ; ;
An efficient and adaptive middleware infrastructure called the Event Heap system dynamically coordinates application interactions and communications in a ubiquitous computing environment, e.g., an interactive workspace, having heterogeneous software applications running on various machines and devices across different platforms. Applications exchange events via the Event Heap. Each event is characterized by a set of unordered, named fields. Events are routed by matching certain attributes in the fields. The source and target versions of each field are automatically set when an event is posted or used as a template. The Event Heap system implements a unique combination of features, both intrinsic to tuplespaces and specific to the Event Heap, including content based addressing, support for routing patterns, standard routing fields, limited data persistence, query persistence/registration, transparent communication, self-description, flexible typing, logical/physical centralization, portable client API, at most once per source first-in-first-out ordering, and modular restartability.
Research Organization:
U.S. Dept. of Energy, Washington, D.C. (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
Assignee:
Johanson, Bradley E., Palo Alto, CA (United States)
Patent Number(s):
7,702,729
Application Number:
10/821,756
OSTI ID:
1176248
Country of Publication:
United States
Language:
English

References (4)

Software Infrastructure for Ubiquitous Computing Environments: Supporting Synchronous Collaboration with Heterogeneous Devices book October 2001
Multibrowsing: Moving Web Content across Multiple Displays book October 2001
The Interactive Workspaces project: experiences with ubiquitous computing rooms journal April 2002
The Event Heap: a coordination infrastructure for interactive workspaces conference January 2002

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Related Subjects

97 MATHEMATICS AND COMPUTING