Subject: Minutes Date: Wed, 12 May 1999 14:50:23 +0200 From: Alessandro RISSO Organization: CERN To: Marc Vanden Eynden Minutes Middleware Meeting 12 May 1999 ====================================== Present: K. Kostro, A. Risso, V. Baggiolini F. Di Maio, M. Vanden Eynden Agenda ====== - Review of the requirements document (continuation) - AOB. ================================================ We start the meeting by discussing first the AOB ================================================ ObjectTeam =========== Marc is using this tool for registering SPS 2001 Uses Cases in UML format. The first impression he had on ObjectTeam is positive. Bridge DCOM-CORBA ================= The product in evaluation, VisualEdge, satisfies the initial tests. Bridge OPC-CORBA ================ Some problem arises with a Microsoft specific data type with a variable length, that is not supported in Java. Kris & Dominique investigate the problem. OmniORB2 ======== Nikolai Trofimov is trying to port OmniORB2 on LynxOS platforms. A technical problem arises when trying to link a the CORBA server compiled code with a huge number of libraries. Two alternative solutions to the problem are currently investigated. The first one is to use a different cross-dev. environment provided by Nicolas De-Metz Noblat; the latter is to use the standard CERN cross-dev. environment, maintained by J. Blake. Nikolai has also written a document with the summary of the problems he encountered during the port of OmniORB2 on LynxOS platforms. The beginning of the evaluation of HardPACK, a commercial CORBA solution for LynxOS platforms, is planned for this month. LynxOS ====== Franck pointed out that alternatives to porting CORBA on LynxOS should also be investigated. One can be to use the Chai Java Virtual Machine, from HP, that will be released next month on LynxOS platforms (see http://www.hp.com/emso/action). A JVM can allows to run platform independent MW solutions on LynxOS. Others solutions can be SmartSockets from Talarian or Sun-RPC. Nikolai will investigate & furnish data about the CORBA servers memory footprint and possible solutions for reducing the memory size when running on LynxOS computers. Milestone Plan ============== A new technical milestone will be added between T1 & T2 by Marc. It will address the OPC-CORBA inter operability tests (Dominique/Kris) and the current MW solutions/products evaluation done for LynxOS computers (Nikolai/Alessandro). ================= USER REQUIREMENTS ================= Alarms ====== Vito & Marc met Marc Tyrrel last week: new requirements for the subscription mechanism has been provided. To briefly summarize the discussion, the concept of "subject" or "hierarchy of subjects" to subscribe on should be provided by the MW. Reliability & information flow control are also important topics to address. Marc & Vito will update the User Requirement document with the full list of requirements; they will be later validated by whom asked for them. Review of User Requirements already registered ============================================== Minor changes has been done on some U.R. It has been decided that a Glossary will be added to the document. First candidate will be the words "reference values", "delta", "death band", "settings", "min/max engineering values". Vito is in charge of it. Requirements Gathering ====================== Kris and Vito have discussed maintenance and administration requirements with SL/CO/FE. They will be commented by MW team members and submitted again to SL/CO/FE people for the final agreement. Alessandro has contacted U.Raich and N.Chohan from PS/BD group; a user requirement gathering is planned for next week. --------------------------------------------------------------------- Alessandro RISSO CERN PS DIVISION Alessandro RISSO CERN PS DIVISION HTML Mail MEYRIN Fax: +41 22 767 9145 GENEVA 23 Work: +41 22 767 7924 1211 Netscape Conference Address SWITZERLAND If you continue to do what you've always done, You'll continue to get what you've always got. ........Is that Enough? Additional Information: Last Name RISSO First Name Alessandro Version 2.1