OMG Internet SIG
Minutes of Meeting #8 (original) (raw)
Nice, France
4 November 1996
OMG Document Internet/96-11-07
Index
- Meeting Summary
- Attendees
- Responses to OMG Internet Services RFI
- Analysis of Responses
- Subsequent Activity
- Next Meeting
Meeting Summary
The mission of OMG Internet Special Interest Group (ISIG) has been to determine how to extend the current OMG Object Management Architecture (OMA) to the Internet-that is, to help OMG create a roadmap for technology adoption that will scale OMA Next Generation (OMA-NG) to global proportions and interface it to various Internet and Web standards.
The purpose of this ISIG meeting was to review responses to the OMG Internet Services RFI issued in June 1996 at the OMG meeting in Washington D.C. Responses were due on 14 November 1996. Three responses were received and were reviewed at this meeting. In addition, two viewpoints, one from Tom Mowbray, chair of Common Facilities Platform Task Force, and one from Steve McConnell, chair of the Electronic Commerce Domain Task Force, were reviewed. These individual reviews were concluded at noon. The afternoon was spent in preliminary analysis, determining what the responses mean to extending and populating the OMG architecture, what sort of roadmap of technology adoption might make sense, and which groups in OMG might be involved in technology adoptions. We did not complete this process.
Initial recommendation of the Internet SIG were reported to the Common Facilities Task Force on 5 November 1996 where an initial recommendation was made to issue two RFPs, one for a URL-IOR mapping by ORBOS and the other to provide IDL Wrappers for Internet services FTP, WAIS, and Telnet by CFTF. In addition, we recommended the need for improved IDL-Java convergence. These recommendations were repeated at the special joint meeting of ORBOS, Common Facilities and interested others held after the Platform and Domain Technical Committee Meetings on Friday, 8 November 1996, where an additional Java to IDL Mapping RFP was planned by ORBOS (note that this is different but related to the current IDL to Java Mapping)
Additional work will be required between this and the next OMG meeting in Tampa, Florida, in January 1997 to converge the submissions into a strawmanInternet Services Architecture (ISA) and technology adoption roadmap and also to prepare initial RFPs. At the Tampa meeting, the ISA and roadmap will be input to other OMG groups, including ORB/OS, Common Facilities Task Forces, Object Model Subcommittee, and the Architecture Board as recommendations from the Internet SIG. Also, we expect to submit the ISA and Roadmap to domain task forces to gather their inputs and priorities for RFPs. In addition, we will seek industry guidance on these documents. At that meeting, we will consider the future role of Internet SIG and whether to merge this activity into other OMG groups or continue it as an informational group. Already, Common Facilities is strongly considering expanding its roadmap to include Internet Services and Facilities.
Attendees
Craig Thompson and Shel Sutton co-chaired the meeting. Thirty six people attended:
- Joshua Anrai - Justsystem - arai@justsystem.co.jp
- Pascal Bar - France Telecom - pascal.baz@sept.fz
- Hans Bjurstrom - Ericsson - Hans.Bjurstrom@vab.ericsson.se
- Bernol.Blobel - U Morgdeburg - bernol.blobl@miz.uni-magdeburg.de
- Christian Blum - Entlecom - blum@enecom.fr
- Kurt Buehler - Open GIS Consortium - kurt@opengis.org
- Carl Cargill -Netscape
- Cory Casanave - Data Access Technologies - cory_casanave@omg.org
- Linda Clabatoni - Suite Software - lindec@suite.com
- Bill Cox - Novell - bill@novell.com
- Dave Gamble - MicroFocus - daveg@mfltf.co.uk
- Thomas Jennings - WG - jennings@wg.com
- Tom Haim - Deerex Company - tn326661@deere.com
- Raimond Heid - Hamburg University - merz@informatik.uni-hamburg.de
- Richard Herbert - ICL - rherbert@mano521.wins.icl.uk
- Philipp Hoschka - W3C - hoschka@w3.org
- Jim Hughes - Fujitsu - jfh@hal.com
- Dlaf Kaestner - SNI - dlaf@sni-svy.com
- Jeff Leitheiser - rockwell - jdleithe@mke.ab.com
- Herve LeJeune - Groupe Bull - h.lejeune@frec.bull.fr
- Rich Lemreaux - Aetna - LemieuxRJ@aetna.com
- Diego LoGiudice - Genesis Development Corporation - diego@gendev.com
- Carl-Uno Manros - Xerox Corp - manros@cpro.es.xerox.com
- Michael Merz - Hamburgh University - merz@informatik.uni-hamburg.de
- Nauhiko.Mori - NCALS - mori@ncals.cif.or.jp
- Gerhard Mueller - Tech Spree - gmp.tech@spree.de
- Steve McConnell - OSM - mcconnell@osm.net
- Rudolf Riess - Digital - rodolf.reiss@ljo.dec.com
- Jim Rye - Digital - rye@send.enet.dec.com
- Ankor Sharma - Oracle - asharma@us.oracle.com
- S. Larry Smith - IBM - slsmith@vnet.ibm.com
- Seldon Stewart - NIST - seldon@nist.gov
- Shel Sutton - MITRE - shel@mitre.org
- Peter.Thomas - Oracle -- ????
- Craig Thompson - Object Services and Consulting, Inc. - thompson@objs.com
Responses to OMG Internet SIG RFI
RFI Response from MITRE, Shel Sutton
See MITRE's RFI response (internet/96-10-04) and presentation(internet/96-11-01) on the OMG server.
RFI Response from Object Services and Consulting, Inc., Craig Thompson
See OBJS's RFI response(internet/96-10-03) and presentation(internet/96-11-02) on the OMG server.
RFI Response from Data Access Technologies, Cory Casanave
See DAT's RFI response(internet/96-10-05) and presentation(internet/96-11-03) on the OMG server.
Electronic Commerce Domain Task Force view, Steve McConnell
See Steve McConnell's presentation (internet/96-11-04) on the OMG server, which covers the EC reference model viewpoint. A list of McConnell's near term targets (internet/96-11-05) is on the OMG server.
Common Facilities Platform Task Force view
See Tom Mowbray's suggestions (internet/96-10-06) on the OMG server, consisting of an email based on OMG staff suggestions.
Analysis of Responses
The afternoon was spent reviewing the responses. We completed a review of Sutton's response and some of McConnell's inputs and started on Thompson's inputs covering just the near term critical items. More analysis is needed to make the importance of the items we have identified clearer and to review the rest of the submissions. Nevertheless, in keeping with an urgency felt by many participants and voiced by Tom Mowbray, we went through an initial prioritization to identify near-term and critical candidates for RFPs.
We discussed:
- the need to align OMG and Java - many/most/all of the OMG vendors are also adopting Java. The opportunity is to converge the Java community, with its programming model which combines some of the best of C++ and Smalltalk and huge momentum, with OMG IDL and its much more extensive "enterprise architecture view" and commitment to language neutrality. The object models of OMG IDL and Java are not quite the same, which causes problems. What kinds of migration paths might there be to converge these two related communities?
- we could map all OMG interface specifications to Java (using a standard mapping when there is one) but that is only one part of a migration path.
- we could adopt Java as a scripting/programming language for OMG-NG
- we could define Java to X Mappings for X = C++, Smalltalk, Ada, COBOL, etc. to re-provide for language neutrality
- an Internet Services Architecture (ISA) - ISA should be viewed as an "overlay" to the OMG object management architecture in the same way that other OMG reference architectures like Object Services Architecture, Common Facilities Architecture, and Electronic Commerce reference model can be viewed as overlays that extend the basic OMA. The work item is to form an ISA as a composite of the submissions - forthcoming before the next meeting. The ISA includes
- new ORBOS services - several are needed
- new CFTF facilities - several are needed
- better operational definitions of component, composition, and federation of services and facilities if we are to compose these together in leggo-like ways to build global architectures from component parts
- The composite ISA will be input to these communities for refinement:
- OMG platform technical committees especially ORBOS and CFTF
- OMG domain technical committees
- OMG Architecture Board
- OMG platform vendors including Netscape, Microsoft, Oracle, Sunsoft, JavaSoft, IBM, HP, Iona, and other interested vendors that can affect community directions
- an ISA Roadmap - a prioritization of the ISA extensions. At the meeting we identified a few near term RFPs that make sense for ORBOS and CFTF. The priority schemes we considered were based on:
- low-to-high criticality
- needed immediately or soon (or never)
- best standardized by X where X = {ORBOS PTF, CF PTF, various DTFs}
- Those RFPs identified as both near-term and high priority and include:
- additional convergence work on IDL and Java beyond the IDL to Java Mapping now underway
- for ORBOS - URL -IOR mappings
- for CFTF - FTP, WAIS, and Telnet gateways, �
Longer term but critical capabilities include
- compositional facilities like OODBs, RDBs, Workflow systems, and KBMS
- federation of services
- the need to publicize OMG Internet SIG efforts - Towards OMA-Next Generation (OMG-NG). So far, no industry groups except OMG ISA have providing guidance for how to scale object technology-based interfaces to enterprise and global levels. OMG interfaces have to date been primarily envisioned as providing architectures for intranets or LAN environments though there is no inherent limitation in the OMG object management architecture to this scale. But with the advent of widespread coming availability of OMG IIOP on web platforms like Netscape, we need to consider the reality of huge-scale OMG availability. We are moving from OMG availability in LANs with 40 workstations to a global environment with 40M workstations. It is necessary that we begin to publish availability of the need and coming availability of OMG specifications that can scale and that OMG Internet SIG is providing this roadmap.
The Internet SIG meeting ended around 5 p.m. Immediately, following the meeting, Shel Sutton, Craig Thompson, and Larry Smith completed a presentation(internet/96-11-06) of results for a planned Tuesday morning meeting with Common Facilities.
Subsequent Activity
Joint meeting with Common Facilities
On Tuesday, 5 November, 1996, Shel Sutton and Craig Thompson represented Internet SIG and discussed Internet SIG's initial near-term recommendations with Common Facilities Task Force. There was immediate interest in defining IDL-wrapper interfaces for basic Internet services including FTP, WAIS, and Telnet which will set the stage for new, higher level services which could be based on these. Jeff Mischkinsky, Visigenic, volunteered to complete this RFP.
Joint meeting with Common Facilities, ORBOS, and others interested in attending
On Friday, 8 November, 1996, a special joint meeting of Common Facilities, ORBOS, Internet SIG, and interested others was held following the Platform and Domain Technical Committee meetings. Bill Cox, as acting chair of the Common Facilities Task Force, led the meeting. See minutes(orbos/96-11-XX or internet/96-11-XX). The first part of the meeting was a review of the Internet SIG recommendations, followed by a brainstorming session, then a brief analysis and finally a prioritization of near term (next meeting) RFPs. Three RFPs are planned:
- URL-IOR mapping - ORBOS
- Java to IDL Mapping - ORBOS (note that this is different but related to the current IDL to Java Mapping)
- IDL Wrappers for Internet services FTP, WAIS, and Telnet - CFTF
Next Meeting
The next meeting of the Internet SIG will take place in Tampa, Florida, on 13 January 1996. Before the meeting we expect to merge the ideas from the submissions and other inputs from the Nice Internet SIG meeting and the brainstorming from the Friday meeting (and any other inputs received) into a list and try to clarify any vague suggestions. Before the meeting, we will post the cumulative list to the tc@omg.org and other email lists asking for comment. We will use the meeting to continue this analysis and clarification and expect to complete a next iteration of a roadmap by 3 p.m. in time to review the three (or possibly more) draft RFPs expected to be ready for review at that meeting.