|
|
Group Communications
<![CDATA[
There is a lot of work being done in the standards area now. Most of
it seems to be defining models etc. Some of the people involved have
been involved in developing WORKING pre OSI group comms systems (Jacob
Palme: Kom, PortaKom, EuroKom, SuperKom; Muray Turoff: Eies and Eies2
(distributed version of the electronic information exchange system,
etc.)
This area is of interest to me. I'm not sure whether this is
something WG1 or WG3 would consider taking on as a workitem (to track
the standard and to provide comment and input to that group.) I would
certainly like the group to recommend to the RARE REC/COA that such a
work item be taken on by RARE - but that is something for the group to
decide.
Steve Benford has made some of the papers available in RTF format for
Word 4 on the Mac. These are LARGE. They are available from Mailbase
at Newcastle:
[Note : I'm still waiting for the X.GC doc from Steve. I'll mail the
list when I have it.]
How to get them....
send a mail message to: mailbase@newcastle.ac.uk
with the text:
send rare-wg3-usis x.acc.v8.rtf
send rare-wg3-usis x.gc.v8.rtf
These docs are:
TITLE: Asynchronous Computer Conferencing Working Document X.acc
FILE NAME: X.acc.v8.rtf
TITLE: Group Communication Working Document X.gc
FILE NAME: X.gc.v8.rtf
TITLE: Asynchronous Computer Conferencing Working Document X.acc
I include below extracts from these docs (Contents + Glossary of
terms) to give you a flavour of what they are about. (This may be all
you need in fact.) The Group Communication System provides a
distributed conferencing facility. Much of the model looks very like
that for a distributed directory service of course, but has much more
built in. It has the idea of roles: member, moderator, group owner
and system manager.
Jill
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Asynchronous Computer Conferencing Working Document ISO/IEC JTC 1/SC
18/WG 4 Version 8, June 1991, Printed 22/8/91:4:51 pm
CCITT Study Group VII/Q.18
SOURCE: Joint ISO/IEC/CCITT Group Communication Subgroup at the
co-located meeting of CCITT Study Group I/Q.15, VII/Q.18 and ISO/IEC
JTC 1/SC 18/WG 4 SPW Messaging
Part 1: Introduction iv
1 Overview 1
2 Scope and Field of Application 1
3 References 1
4 Definitions 2
5 Abbreviations 2
6 Conventions 3
7 Part 2: Asynchronous Computer Conferencing Model and
Abstract Service 3
7.1 Introduction 3
7.2 Asynchronous Computer Conferencing Terminology 4
7.3 Asynchronous Conferencing Abstract Service Definition 7
7.3.1 Ports and Operations 7
7.3.2 Member port 8
7.3.3 Moderator port 12
7.3.4 Conference Management Port 12
7.3.5 Possible extensions 13
7.3.6 Notification handling 13
7.3.7 Issues for further study: 14
8 Part 3: Distributed realisation of the computer conferencing model
15
8.1 Partitioning 15
8.2 Operational procedure 15
8.3 Navigation 16
8.4 Execution 16
8.5 Communication between CCSA-s 17
8.6 Distribution of new contributions 18
8.7 Varying real implementations 19
8.8 Mapping CCAP operations on distributed operations 21
8.9 For further study 23
Annex A: Glossary of Terms 23
Annex B: Security Overview 24
1 Introduction 25
2 Vulnerabilities 25
3 Vulnerability analysis 25
4 Security services 25
1 Overview
Part 2 of this document presents a basic asynchronous computer
conferencing application.
Part 3 describes a possible distributed realisation of the
computer conferencing application.
2 Scope and Field of Application
This Recommendation defines the overall system and service of
Asynchronous Computer Conferencing. Other aspects of Message
Handling Systems and Services are defined in other
Recommendations.
5 Abbreviations
DL Distribution List
FFS For Further Study
GCE Group Communication Environment
GCS Group Communication Service
GCSA Group Communication Service Agent
GCUA Group Communication User Agent
GCAP Group Communication Access Protocol, the protocol between a GCUA and a
GCSA
CCSP Computer Conferencing Service Protocol, the protocol between two CCSA-s
CCS Computer Conferencing Service
CCSA Computer Conferencing Service Agent
CCUA Computer Conferencing User Agent
CCAP Computer Conferencing Access Protocol, the protocol between a CCUA and
a
CCSA
CCSP Computer Conferencing Service Protocol, the protocol between two CCSA-s
IPM Inter-Personal Messaging
IPMS Inter-Personal Messaging Service
IPMUA Inter-Personal User Agent
MTS Message Transfer Service
DS Directory System
DUA Directory System User Agent
DAP Directory Access Protocol, the protocol between a DUA and a DSA
DSP Directory System Protocol, the protocol between two DSA-s
DFRS Document Filing and Retrieval Service
DFRUA Document Filing and Retrieval User Agent
DFRSA Document Filing and Retrieval Service Agent
DFRAP DFR Access Protocol, The protocol between a DFRUA and a DFRSA
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
TITLE: Group Communication Working Document X.gc
Group Communication Working Document ISO/IEC JTC 1/SC 18/WG 4 Version
8, June 1991, Printed 22/8/91:4:48 pm
1 Part 1: Introduction v
2 Overview 1
3 Scope and Field of Application 1
4 References 1
5 Definitions 1
6 Abbreviations 2
7 Conventions 3
8 Part 2: General Group Communication Model 4
8.1 Goals 4
8.2 Requirements 4
8.3 Approach 5
8.4 The Group Communication Service 5
8.4.1 Introduction 5
8.4.2 The Group Communication Environment 5
8.4.3 Group Communication User 6
8.4.4 Group Communication User Agents and Group
Communication Service 6
8.4.5 The GC Service is distributed 7
8.4.6 The GC System contains data objects 8
8.5 The Group Communication Information Model 9
8.5.1 Objects 9
8.5.2 Item 10
8.5.3 Entity 10
8.5.4 Domain 10
8.5.5 Index 11
8.5.6 Attributes 11
8.5.7 Links 11
8.5.8 Distinguished Names 12
8.5.9 Free-Form Names 12
8.6 Abstract Service Definition 12
8.6.1 Overview 12
8.6.2 Searching 14
8.6.2.1 Examples 15
8.6.2.2 ASN.1 for Search 16
8.6.3 ASN.1 for the Group Communication Abstract Service 17
8.6.3.1 The Group Communication Environment 18
8.7 Items for further study 30
9 Part 3: Mapping the Computer Conferencing Model on the general
Group Communication Model 31
9.1 Introduction 31
9.2 Objects 31
9.3 Attributes 34
9.4 Links 35
9.5 Mapping Operations 35
9.6 Initialisation 35
9.7 Manager port 36
9.7.1 Create group activity 36
9.7.1. Announce group activity 36
9.7.3 Suspend group activity 36
9.7.4 Delete group activity 36
9.7.5 Add member 36
9.7.6 Remove member 36
9.7.7 Reject subscription request 37
9.7.8 Register participant 37
9.7.1. Unregister participant 37
9.7.10 Modify group activity 37
9.8 Member port 37
9.8.1 Find-group activities 37
9.8.2 Find subscribed group activities 37
9.8.3 Describe group activity 38
9.8.4 Subscribe request 38
9.8.5 Unsubscribe 38
9.8.6 List news 38
9.8.7 Find contributions 38
9.8.8 Find notifications 38
9.8.9 Read item 39
9.8.10 Mark 39
9.8.11 Submit-contribution 39
9.8.12 Personal-reply 39
9.8.13 Modify-contribution 40
9.8.14 Remove-item 40
9.8.15 Delete-item 40
9.8.17 Describe-participant 40
9.8.16 Find-members 40
9.8.18 Modify-profile 40
9.8.19 Download news 40
9.9 Moderator Port 41
9.9.1 Find-submissions 41
9.9.2 Accept 41
9.9.3 Reject 41
Annex A: Glossary of Terms 41
Annex B: Security Overview 42
1 Introduction 43
2 Vulnerabilities 43
3 Vulnerability analysis 43
4 Security services 43
]]>
|
|
|