OHS7 - The Seventh Workshop on Open Hypermedia Systems

at Hypertext 2001, Aarhus

Sigi ReichSalzburg Research / SunTREC

sreich@salzburgresearch.at

August 2001Page 2

Overview

About OHSs A view on the history of OHS workshops Potential new directions Programme of today's workshop

...

Wrap up

August 2001Page 3

About OHSs

OHS is short for Open Hypermedia System, i.e., a hypermedia system which is open with respect to several dimensions (Davis, 1996)

An OHS is typically composed of a set of middleware components which integrate between frontend (the clients) and backend (the servers)

Today's OHSs serve multiple hypertext application domains (navigational HT, spatial HT, taxonomic HT, etc.); they are referred to as component-based OHSs (Nürnberg, 1998)

August 2001Page 4

History of OHS Workshops

OHSs started in 1994 (with a Workshop on open HyperTEXT in Konstanz, and a Workshop on open HyperMEDIA in Edinburgh)

The Open Hypermedia Systems Working Group (OHSWG) formed in April 1996 WWW site: http://www.ohswg.org/

Mailing list: ohs@csdl.tamu.edu

August 2001Page 5

The New Web Site

http://www.ohswg.org/

August 2001Page 6

The OHSWG

Goals of the OHSWG "maximize the applicability of the last decade of

hypermedia systems and infrastructure research" (Nürnberg, "old" OHSWG web site) by

creating a (visible) community

defining standards (protocols, APIs, reference architecture, etc.)

demonstrating interoperability

organising workshops and working group meetings

August 2001Page 7

Started as the Open Hypermedia Systems Workshop OHS 1

(Edinburgh, 1994)

OHS 2 (Washington, 1996)

OHS 3 (Soton, 1997)

OHS 4 (Pittsburgh, 1998)

OHS 5 (Darmstadt, 1999)

OHS 6 (San Antonio, 2000)

OHS 7 (Åarhus, 2001)

OHS 2.5 WGM (Soton, 1996)

OHS 3.5 WGM (Åarhus, 1997)

OHS 4.5 WGM (Soton, 1998)

OHS 5.5 WGM (Esbjerg, 1999)

OHS 6.5 WGM (Åarhus, 2001)

The OHS Workshop Series

August 2001Page 8

Statistics on the OHS Workshop Series

OHS Workshops 1996 - today

0

5

10

15

20

25

30

OHS2('96)

OHS3('97)

OHS4('98)

OHS5('99)

OHS6('00)

OHS7('01)

Papers

Participants(overall)Sotonoids

August 2001Page 9

Topics of OHS7 (see the CFP)

Interoperation and standardisation issues in OHS, including architectural issues, protocols, naming, transformation, etc.

Semantic Web including topic maps, meta data, ontologies, etc.

Document models and hypertext Media aspects of OHSs such as synchronisation of contents

and link data, streaming of links, etc. OHS issues and Computer Supported Cooperative Work

(CSCW) Application scenarios, experiences, hypertext domains, and

requirements for OHSs Open Hypermedia on the Web Presentation aspects including personalisation, context

awareness, etc.

August 2001Page 10

Potential Directions 1/3

Middleware Challenges (Geihs, 2001) Enterprise application integration Quality of service (QoS) Nomadic mobility Ubiquitous computing Programming models (client-server, asynchronous

interaction, mobile code, etc.) Architecture (distribution transparency, layering,

etc.) Dynamic configuration (disconnected operation,

adaptive applications (was "QoS"), ad hoc networking, etc.)

August 2001Page 11

Potential Directions 2/3

ACM Multimedia Workshop on Multimedia Middleware (Plagemann, 2001) Streaming Services QoS Middleware Configuration and Flexibility

August 2001Page 12

Potential Directions 3/3

Middleware Challenges Enterprise application integration Quality of service Nomadic mobility Ubiquitous computing Programming models (client-server, asynchronous

interaction, mobile code, etc.) Architecture (distribution transparency, layering,

etc.) Dynamic configuration (disconnected operation,

adaptive applications (was "QoS"), ad hoc networking, etc.)

Hypermedia Middleware Challenges Enterprise application integration Quality of service for links / meta data Nomadic mobility mobile link servers? Ubiquitous computing Dynamic configuration (disconnected operation,

adaptive applications, ad hoc networking, etc.) Programming models (design patterns, ???) Architecture Collaboration Media aspects (CBR, CBN, etc.)

August 2001Page 13

Programme of today's Workshop

August 2001Page 14

To be continued ..

.

August 2001Page 15

...

August 2001Page 16

Wrap up of the Workshop

The Proceedings Questions and Issues

August 2001Page 17

The Proceedings 1/2

Title and affiliations: have a look at the guidelines http://www.springer.de/comp/lncs/authors.html

Quotes: use proper quotes, in LaTeX this means ``quoted text'' (the opening quote reads like 66, the closing quote like 99)

Headings & title: all words in headings should be capitalised except for conjunctions, prepositions (e.g., on, of, etc.) and definite and indefinite articles (e.g., the, a, etc.) unless their appear at the beginning.

Page numbering and running heads: do NOT use a running title! This will be added later (in the final version). Also, do NOT use page numbering.

August 2001Page 18

The Proceedings 2/2

Citations & references: the list of references is headed "References" and is not assigned a number. For citations in the text use square brackets (e.g., [1], [47, 48]). Examples

1. Baldonado, M., Chang, C.-C.K., Gravano, L., Paepcke, A.: The Stanford Digital Library Metadata Architecture. Int. J. Digit. Libr. 1 (1997) 108 - 1212. Bruce, K.B., Cardelli, L., Pierce, B.C.: Comparing Object Encodings. In: Abadi, M., Ito, T. (eds.): Theoretical Aspects of Computer Software. Lecture Notes in Computer Science, Vol. 1281. Springer-Verlag, Berlin Heidelberg New York (1997) 415 - 438

Incorporate FEEDBACK from Workshop! Send me your final paper until BEGINNING OF

SEPTEMBER 2001!!! Thank you!!!

August 2001Page 19

Questions/Issues

This presentation will be available at the workshop site

http://www.salzburgresearch.at/suntrec/ohs7/

August 2001Page 20

The OHS Workshop Series

Some good things ... strong interest feeling of a community (incl. visibility) refereeing and publication

... and things to be improved more discussions more focus

August 2001Page 21

Moving on

Evolve ...... to a "Mini-Conference" (e.g., a Symposium)... to a smaller, i.e., more specific, workshop

Possible Themes See

August 2001Page 22

References

Davis et al. 1996:Davis, H., Lewis, A., Rizk, A.: OHP:A Draft Proposal for a Standard Open Hypermedia Protocol (Levels 0 and 1: Revision 1.2 - 13th March. 1996), http://www.ecs.soton.ac.uk/~hcd/protweb.htm

Geihs 2001:Geihs, K.: Middleware Challenges, IEEE Computer, June 2001, pp. 24-31.

Nürnberg et al. 1998:Nürnberg, P. J., Leggett, J. J., and Wiil, U. K. An agenda for open hypermedia research. In Proceedings of the '98 ACM Conference on Hypertext, June 20-24, 1998, Pittsburgh, PA (1998), pp. 198-206.

Plagemann & Eliassen, 2001:Plagemann , T., and Eliassen, F. M3W 2001 Technical Program. October 5th, 2001 Ottawa, Canada in conjunction with ACM MM 2001.

August 2001Page 23

Online Publications of OHS

Annotations (following www.bootstrap.org):

Original Paper Tagged Paper

August 2001Page 24

Posting Comments

August 2001Page 25

Viewing Comments