AHM08/RS1: Regular Session

Jeremy Cohen: ICENI II

Coordinate forms:

declarative workflow lnguage
.. describe what not how
.. much easier to logically analyze the flow

use of coordination forms for matching

workflow execution .. bpel, scufl etc

declarative workflow generation tuned to users normal activities

.. automated workflow generation
.. extract from a users real-time use of their natural software - matlab etc

workflow execution with performance .. performance repository .. used to drive planning of optimal execution plan

ICENA II plan

Daniel Goodman: Decentralised Middleware and Workflow Enactment for the Martlet Workflow Language


Middleware comprises:
.. Process Coordinator
.. Data Store
.. Data Processor

Essentially introduces an efficient protocol for P2P communication between PCs and DPs such that each node becomes aware in changes in state and availability of the network as a whole in a decentralised robust efficient way.

Ahmed Algaoud: Workflow Interoperability


API for workflow interoperablity providing direct interaction
.. based on WS-eventing .. asynchronous
.. look to implement in eg Triana Taverna Kepler

WS-Eventer set up witth four types
.. subscriber, sink service, subscribe manager, source servce

also use WSPeer & working with NAT issues.

Asif Akram: Dynamic Workflow in GRID Environment


Imperial College

part of ICENI project
GridCC incl QoS, BPEL, ActiveBPEL

introduce QoS language

QoS criteria incl security, performance (from performance criteria)

Used WS Addressing engine (WSA) to achieve dynamic redefinition of the BPEL partner link within the BPEL.

BPEL Editor / Monitor

Conclusion .. QoS can be injected into BPEL which makes dynamic workflow much easier to achieve, and this can be achieved within existing standard specification.

Jos Koetsier: A RAPID approach to enabling domain specfic applications

User prefers domain specific portlet, but there is quite a lot of work creating domain specific portlets so ..
OK so approach is to build a custom portlet generator ..

have written one based on jsdl and jsdl xml file (GridSAM)

Uses OMII.uk s/w

obtain at http://research.nesc.ac.uk/rapid

Martin Dove: MaterialsGrid: An end-to-end approach for computational projects
3yr 5fte project www.materialsgrid.org

based on CASTEP to simulate the behaviour of materials to predict the properties of material.

results are contributed to a database .. which may also hold measured properties.

so database content is computed on demand for groups of users that dont want to know the computational under the hood stuff.

workflow using scitegic pipeline pilot instead of bpel, partly because the bpel std wasnt uniformly implemented.

cml.sourceforge.net .. chemical ml from cmlcomp.org

cml2sql & www.lexical.org golem to construct cml

.. jquery allows mix of pulldown and autocompletion & constrains to allowed values ..