Date: Wed, 27 Jan 93 17:39:01 PST Reply-To: Return-Path: Message-ID: Mime-Version: 1.0 Content-Type: text/plain From: surfpunk@osc.versant.com (pbyynobengvir zbqnyvgl genafvgvbaf) To: surfpunk@osc.versant.com (SURFPUNK Technical Journal) Subject: [surfpunk-0037] THESIS: meta-information sharing in collaboration support environments Keywords: surfpunk, computer-supported cooperative work, meta-information + + a. Hydrogen cracking will be performed by + trailing a large recepticle for containment + of water behind the AUtopia, where the solar + units will generate the electricity for + separate the hydogen from the water by + process of electrolosis. + -- AUtopia manifesto + wixer!autopia@cs.utexas.edu +++++++++++++++++++++++++++++++++++++++++++++++ The body of this proposal passed "fmt" without the slightest change. The proposer obviously uses "vi"! -- strick ________________________________________________________________________ ________________________________________________________________________ META-INFORMATION SHARING IN COLLABORATION SUPPORT ENVIRONMENTS Ph.D. Thesis Proposal W. Keith Edwards College of Computing Graphics, Visualization & Usability Center [ Georgia Tech, Atlanta, Georgia, USA ] Committee: John Stasko (Advisor) James Foley David Gedye (Sun Microsystems Laboratories, Inc.) Scott Hudson Daryl Lawton Tuesday, February 2, 1993 5:00 PM College of Computing, Room 155 ABSTRACT Computer-supported cooperative work, or CSCW, is an emerging area of both research and commercial interest which is concerned with the use of computers to support and enhance the work activities of groups. Collaborative applications are notoriously hard to build however. As Grudin says, "the design process fails because [developers'] intuitions are poor for multi-user applications." A number of characteristics of collaborative applications contribute to their intractability. These include the multi-user nature of such systems (requiring application developers to maintain serialization and synchronization among multiple event streams), the requirement for fine-grained access control, the need for flexible session management, and the potentially distributed nature of collaborative applications. The goal of this proposed research is create a framework to enable the easier creation of robust, flexible, multi-user collaborative applications. I believe that it is possible to draw a distinction between two classes of information sharing in collaborative applications, and that by drawing such a distinction it is possible to gain insight into ways to support collaborative systems both at development time and run-time. These two sharing classes are application information sharing and meta-information sharing. Application information sharing is the "classical" form of sharing and involves sharing application-internal data in a collaborative session. Meta-information sharing is the sharing of information used to facilitate the process of collaboration itself; it is the sharing of information used by the underlying collaboration support environment. I hypothesize that by drawing this distinction and focusing on various aspects of meta-information sharing, it will be possible to significantly enhance the development process and run-time flexibility of collaborative applications. In this talk I shall discuss the distinction in types of sharing and explain why I have focused on this one type of information sharing. I will specifically examine four specific objectives of this research which involve the sharing of meta-information: session management, user representations in a collaborative system, policy expression, and modality transitions between synchronous and asynchronous collaboration. --- keith edwards keith.edwards@gvu.gatech.edu multimedia computing group / georgia tech 404.894.6266 graphics, visualization, & usability center atlanta, ga 30332-0280 ________________________________________________________________________ ________________________________________________________________________ The SURFPUNK Technical Journal is a dangerous multinational hacker zine originating near BARRNET in the fashionable western arm of the northern California matrix. Quantum Californians appear in one of two states, spin surf or spin punk. Undetected, we are both, or might be neither. ________________________________________________________________________ Send postings to , subscription requests to . MIME encouraged. Xanalogical archive access soon. Fatal IO errors to our enemies. ________________________________________________________________________ ________________________________________________________________________ XIO: fatal IO error 32 (Broken pipe) on X server "unix:0.0" after 38 requests (33 known processed) with 0 events remaining. The connection was probably broken by a server shutdown or KillClient.