Subject: Returned mail: User unknown Resent-Date: Thu, 29 Apr 1999 13:15:47 -0400 Resent-From: Geoffrey Fox Resent-To: p_gcf@boss.npac.syr.edu Date: Wed, 28 Apr 1999 16:37:29 -0400 From: Mail Delivery Subsystem To: gcf@boss.npac.syr.edu The original message was received at Wed, 28 Apr 1999 16:36:22 -0400 from gcf@localhost ----- The following addresses had delivery problems ----- outbox/april99@npac.syr.edu (unrecoverable error) (expanded from: ) ----- Transcript of session follows ----- ... while talking to postoffice.npac.syr.edu: >>> RCPT To: <<< 550 ... User unknown 550 outbox/april99@npac.syr.edu... User unknown ----- Original message follows ----- --------------------------------------------------------------------- Subject: Some Access Grid Bullets as requested Date: Wed, 28 Apr 1999 16:36:22 -0400 From: Geoffrey Fox Reply-To: gcf@npac.syr.edu To: Rick Stevens CC: "Scott Lathrop" , "Raquell Holmes" , "Dennis Gannon" , "Roscoe C. Giles" , "Dan Reed" , Fcc:; 1) Current roadmap built around distributed objects. Collaborative technology enables sharing of distributed objects synchronously or asynchronously 2) EOT has some special roles as "learning" environments are based on collaborative technology 3) Universal Access (part of EOT) is a National initiative and should be part of all portals. There are interesting technical overlaps between making material accessible to all and supporting users with perhaps no sensory or phtsical disabilities but with network bandwidth and client machine differences. The "shared event" model of collaboration and systematic use of stylesheets supports this for instance. This way sharing Immersadesk and workstation visualization can be related to sharing HTML text and its sonification for blind users. 4) Access of Alliance portals for education community implies support for Macintosh and lower end clients 5) TangoInteractive has useful feature that has API to Java, C++ and JavaScript (ECMSScript). As such it enables elegant support of two important distributed objects -- The W3C document object model (DOM with initial Netscape and Microsoft dynamic HTML implementation) and Javabeans. 6) One generic useful capability of TangoInteractive is its ability to share more or less any HTML Forms and as forms are used as interface to many sophisticated backend systems, this means it can use shared W3C DOM to support rather general collaborative objects. EOT developed an experimental version of the Biology Workbench which is made collaborative in this fashion This can be considered as a "portal service" A note on "process" 7) Producing collaborative systems is perhaps engineering (i.e. infrastructure) 8) However it is a research issue as to what type of collaborative systems are needed and how they are used. The Alliance provides an excellent testbed for this research. So I believe you can say you are producing computational infrastructure but put uncertainity into deliverables associated with 8) above. Geoffrey Fox gcf@npac.syr.edu, http://www.npac.syr.edu Director of NPAC and Professor of Physics and Computer Science Phone 3154432163 (Npac central 3154431723) Fax 3154434741