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Service Oriented Architecture

& Grid Computing

Marc Brooks, The MITRE Corporation

The author's affiliation with The MITRE Corporation is providedfor identification purposes only, and is not intended to convey orimply MITRE's concurrence with, or support for, the positions,opinions or viewpoints expressed by the author.

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Agenda

Service Oriented Architecture

Grid Computing

Standards involved

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What is Service Oriented Architecture (SOA)?

An SOA application is a composition ofservices

A service is the atomic unit of an SOA

Services encapsulate a business process

Service Providers Register themselves

Service use involves: Find, Bind,Execute

Most well-known instance is Web

Services

Service

Registry

Service

Provider

Service

Consumer

Find Register

Bind,

Execute

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SOA Actors

Service Provider Provides a stateless, location transparent business

service

Service Registry Allows service consumers to locate service providers

that meet required criteria

Service Consumer Uses service providers to complete business

processes

Service

Registry

ServiceProvider

ServiceConsumer

Find Register

Bind,

Execute

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SOA Benefits

Business Benefits

Focus on Business Domain solutions

Leverage Existing Infrastructure

Agility

Technical Benefits

Loose Coupling

Autonomous Service

Location Transparency

Late Binding

Service

Registry

ServiceProvider

ServiceConsumer

Find Register

Bind,

Execute

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SOA/Web Services Related Standards

Source: http://roadmap.cbdiforum.com/reports/protocols/

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What is Grid Computing?

A computational grid is a hardware and software infrastructure that provides

dependable, consistent, pervasive, and inexpensive access to high-end

computational capabilities.

-The Grid: Blueprint for a New Computing Infrastructure, Kesselman & Foster

Source: What is the Grid? A Three Point Checklist, Ian Foster, Argonne National Laboratory & University of Chicago

Criteria fora Grid*:

1. Coordinates resources that are not subject to centralized control.

2. Uses standard, open, general-purpose protocols and interfaces.

3. Delivers nontrivial qualities of service.

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Grid Computing Benefits

Exploit Underutilized resources CPU Scavenging, Hotspot leveling

Resource Balancing

Virtualize resources across an enterprise Data Grids, Compute Grids

Enable collaboration for virtual organizations

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Two Key Grid Computing Groups

The Globus Alliance (www.globus.org)

Composed of people from:Argonne National Labs, University of Chicago, University of Southern

California Information Sciences Institute, University of Edinburgh andothers.

OGSA/I standards initially proposed by the Globus Group Based off papers Anatomy of the Grid & Physiology of the Grid

The Global Grid Forum (www.ggf.org)

History First meeting in June of1999, Based off the IETF charter

Heavy involvement of Academic Groups and Industry (e.g. IBM Grid Computing, HP, United Devices, Oracle, UK e-Science

Programme, US DOE, US NSF, Indiana University, and many others)

Process Meets three times annually

Solicits involvement from industry, research groups, and academics

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Companies involved in Grid Computing

Avaki

Axceleon

CapCal

Centrata

DataSynapse

Distributed Science Elepar

Entropia.com

Grid Frastructure

GridSystems

Groove Networks

IBM Intel

Powerllel

ProcessTree

Sharman Networks Kazza

Sun Gridware

Sysnet Solutions Tsunami Research

Ubero

United Devices

Veritas

Xcomp

Jivalti

Mithral

Mind Electric

Mojo Nation

NewsToYou.com NICE, Italy

Noemix, Inc.

Oracle

Parabon

Platform Computing

Popular Power

Source: http://www.gridcomputing.com/

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Standards involved with SOA & Grid Computing

SOA Standards

WSDL

UDDI

BPELWS-Profile

WS-Security

WS-Choreography

And many others

Grid Standards

OGSI

Extension to WSDL

W

S-Resource WS-ResourceLifetime

WS-

ResourceProperties

WS-

RenewableReferences

WS-ServiceGroup

WS-BaseFaults

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Grid and Web Services Standards

Convergence of Core Technology Standards allows

Common base for Business and Technology Services

Have beenconverging

WSRF

Started far

apart inapplications

&technology

WS-I CompliantTechnology

Stack

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Service Oriented ArchitectureWhat is Service-Oriented Architecture?. Hao He. http://webservices.xml.com/lpt/a/ws/2003/09/30/soa.html

Service-Oriented Architecture: A Primer. Michael S. Pallos. http://www.bijonline.com/PDF/SOAPallos.pdf

The Benefits of a Service-Oriented Architecture. Michael Stevens.

http://www.developer.com/design/article.php/1041191

Web Services Specifications - http://www.w3.org/2002/ws/

Grid ComputingGlobal Grid Forum (http://www.ggf.org)

The Globus Alliance ( http://www.globus.org)

The Physiology of the Grid. Ian Foster, Carl Kesselman, Jeffrey M. Nick, Steven Tuecke.

http://www.globus.org/research/papers/ogsa.pdf

The Anatomy of the Grid. Ian Foster, Carl Kesselman, Steven Tuecke.

http://www.globus.org/research/papers/anatomy.pdf

Web Services Resource Framework - http://www.globus.org/wsrf/