“Features of CEMT Workflow Model”
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“Features of CEMT Workflow Model”. Carlos Zeve. International Cooperation ProTeM-CC/INRIA. Title: Conception of Cooperative Multimedia Edition Environment for the Web with Technology of Workflow. Coordinators: José Valdeni de Lima Nabil Layaïda. Components of the system.

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“Features of CEMT Workflow Model”

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“Features of CEMT Workflow Model”

Carlos Zeve


International Cooperation ProTeM-CC/INRIA

Title: Conception of Cooperative Multimedia

Edition Environment for the Web

with Technology of Workflow

Coordinators: José Valdeni de Lima

Nabil Layaïda


Components of the system

1 – Synchronization Multimedia Tools

2 – HTML Editor

3 – HTTP Server

4 – Annotation Server

5 – WebDAV extensions

6 – Workflow Engine

7 – Framework BW (Big Watcher)

today

future


1 – Synchronization Multimedia Tools

SMIL

The Synchronized Multimedia Integration Language

enables simple authoring of interactive audiovisual

presentations. SMIL is typically used for

"rich media"/multimedia presentations which integrate

streaming audio and video with images, text or any

other media type.

[www.w3.org/AudioVideo/]


2 – HTML Editor

Amaya

Amaya is a browser/authoring tool that allows you

to publish documents on the Web and comes equipped

with a "WYSIWYG style" of interface, similar to that

of the most popular commercial browsers. With such

an interface, users can easily generate HTML and

XHTML pages.

[www.w3.org/Amaya/]


3 – HTTP Server

Ex.: Apache

A well configured server HTTP, which includes

the methods PUT, POST, GET, would make it possible

the group to publish its Web pages.

[www.apache.org]


4 – Annotation Server

Annotea Server

Annotea is a project enhancing the W3C

collaboration environment with shared annotations.

By annotations we mean comments, notes,

explanations, or other types of external remarks that

can be attached to any Web document.

[www.w3.org/2001/Annotea/]


5 – WebDAV extensions

WebDAV

  • WebDAV stands for "Web-based Distributed Authoring

  • and Versioning". It is a set of extensions to the HTTP

  • protocol which allows users to collaboratively edit and

  • manage files on remote web servers.

[www.webdav.org]


6 – Workflow Engine

Workflow

The automation of a business process, in whole

or part, during which documents, information or

tasks are passed from one participant* to another

for action, according to a set of procedural rules.*participant = resource (human or machine)

[www.e-workflow.org/]


7 -- Framework BW (Big Watcher)

BW

BW is one framework to give has supported past

events awareness...To supply the context of the

individual activities through the understanding of the

activities carried through for the others.

[gnome.inrialpes.fr:1959]


BYZANCE

A Web based HTML cooperative editor

The Byzance groupware application allows users

connected to the Internet to collaborate for producing

shared documents in HTML format

We use this tool to analyze all its cooperative edition

flows and to extract a model of Workflow based

on methodology WIDE of Casati& Ceri

[www.inrialpes.fr/opera/Byzance.en.html]


Why WIDE?

capacity to represent any type of WF

access specification the external BD

facility to make modules of tasks

clearly and full formalism for specification of tasks

handling of exceptions

[Glaucia 00]


Problems

the definition of actors and roles

to be made in informal way

temporal aspects and dynamic data

Solution

use of templates

[Glaucia 00]


task

supertask

multitask

k

beginning/end

direct

connection

join

interactive

fork total/

join total

k

fork conditional

with mutual exclusion

fork conditional

join parcial


Item

Characterization of de task

Supertask

Name of task

Description

Pre-condition

Post-condition

Agent


Workflow Engine

Workflow Authoring

workflow for the creation of the documents (course)

Workflow of Execution

workflow for the execution of the course


Workflow Authoring

cooperativework

roles ( author,collaborator, visitor,...)

different rights ( owner, write,read,..)

datetime (occurs of a specific date and time)

periodic (occurs periodically)

interval (task duration)


document(xml,smil)

instances

workflow engine

workflow authoring

workflow execution

cooperative work

workflow

interactivity


document

Cooperative units

document

paragraph

phrase

word

caracter


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