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

Patent · Tue Apr 20 00:00:00 EDT 2010

OSTI ID:1176248

Johanson, Bradley E.; Fox, Armando; Winograd, Terry A.; Hanrahan, Patrick M.

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: US Department of Energy (USDOE), Washington, DC (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
• Resource Relation: Patent File Date: 2004 Apr 08
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING