1. Service Oriented Architecture & Grid Computing
Marc Brooks, The MITRE Corporation
The author's affiliation with The MITRE Corporation is provided for identification purposes only, and is not intended to convey or imply MITRE's concurrence with, or support for, the positions, opinions or viewpoints expressed by the author.

2. Service Oriented Architecture Grid Computing Standards involved
Agenda
Service Oriented Architecture
Grid Computing
Standards involved

3. What is Service Oriented Architecture (SOA)?
An SOA application is a composition of services
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
Find
Register
Service
Consumer
Service
Provider
Bind,
Execute

4. SOA Actors Service Provider Service Registry Service Consumer
Find
Register
Bind,
Execute
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

5. SOA Benefits Business Benefits Focus on Business Domain solutions
Service
Registry
Provider
Consumer
Find
Register
Bind,
Execute
Business Benefits
Focus on Business Domain solutions
Leverage Existing Infrastructure
Agility
Technical Benefits
Loose Coupling
Autonomous Service
Location Transparency
Late Binding

6. SOA/Web Services Related Standards
Source:

7. What is Grid Computing? Criteria for a Grid*:
“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
Criteria for a Grid*:
Coordinates resources that are not subject to centralized control.
Uses standard, open, general-purpose protocols and interfaces.
Delivers nontrivial qualities of service.
Source: “What is the Grid? A Three Point Checklist”, Ian Foster, Argonne National Laboratory & University of Chicago

8. 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

9. Two Key Grid Computing Groups
The Globus Alliance (
Composed of people from:
Argonne National Labs, University of Chicago, University of Southern California Information Sciences Institute, University of Edinburgh and others.
OGSA/I standards initially proposed by the Globus Group
Based off papers “Anatomy of the Grid” & “Physiology of the Grid”
The Global Grid Forum (
History
First meeting in June of 1999, 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

10. Companies involved in Grid Computing
Jivalti
Mithral
Mind Electric
Mojo Nation
NewsToYou.com
NICE, Italy
Noemix, Inc.
Oracle
Parabon
Platform Computing
Popular Power
Powerllel
ProcessTree
Sharman Networks Kazza
Sun Gridware
Sysnet Solutions
Tsunami Research
Ubero
United Devices
Veritas
Xcomp
Avaki
Axceleon
CapCal
Centrata
DataSynapse
Distributed Science
Elepar
Entropia.com
Grid Frastructure
GridSystems
Groove Networks
IBM
Intel
Source:

11. Standards involved with SOA & Grid Computing
SOA Standards
WSDL
UDDI
BPEL
WS-Profile
WS-Security
WS-Choreography
And many others…
Grid Standards
OGSI
Extension to WSDL
WS-Resource
WS-ResourceLifetime
WS-ResourceProperties
WS-RenewableReferences
WS-ServiceGroup
WS-BaseFaults

12. Grid and Web Services Standards
GT1
GT2
Started far apart in applications & technology
OGSi
WS-I Compliant
Technology
Stack
Have been
converging
WSRF
BPEL
WS-*
WSDL,
SOAP
XML
HTTP
Web
Convergence of Core Technology Standards allows
Common base for Business and Technology Services

13. Service Oriented Architecture
“What is Service-Oriented Architecture?”. Hao He.
“Service-Oriented Architecture: A Primer”. Michael S. Pallos.
“The Benefits of a Service-Oriented Architecture”. Michael Stevens.
Web Services Specifications -
Grid Computing
Global Grid Forum (
The Globus Alliance (
“The Physiology of the Grid”. Ian Foster, Carl Kesselman, Jeffrey M. Nick, Steven Tuecke.
“The Anatomy of the Grid”. Ian Foster, Carl Kesselman, Steven Tuecke.
Web Services Resource Framework -