Wolfgang Boch

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European Grid Technology Days 2005 IST-FP6 Grid
projects concertation June 1-2, Brussels
Wolfgang Boch DG Information Society Grid
Technologies http//www.cordis.lu/ist/grids/
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Objectives

• of collaboration activities
• Increase effectiveness of EU collaboration beyond
  individual consortia
• Speak with a single European voice
• Increase impact in common activities that require
  critical mass
• of this event
• Discuss achievements of the first period
• Agree on future activities and possible
  adjustments of strategy, also in the light of
  evolving trends

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Service Oriented ArchitecturesAdding
flexibility to business IT

• A Service-Oriented Architecture (SOA) is an
  architectural concept
• Most popular implementation through web services
  (SOAP, WSDL, UDDI)
• Standardized use of services to meet the
  requirements of business applications
• Highly-interoperable over different
  implementations (e.g. Java and .NET), including
  legacy solutions
• Re-usability of software components, transforming
  monolithic applications into services
• Loosely coupled services
• ? Business agility!

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Service Oriented ArchitecturesComplementing and
exploiting the added value of Grids
while SOAs may be the conceptual framework for
increased agility on the application layer, the
actual execution of modularized services requires
a much better command of enterprise resources
than the typical organization has today. SOA can
use common Web services protocols (XML, SOAP,
WSDL and UDDI) to distribute processes, but it in
and of itself doesn't describe the distribution
and management of the resources. Ian
Foster (Computerworld, 29 Nov. 2004)
Technology convergence or separation of concerns?
SOAs
Grids

• Resources shielded by Services
• Re-use of business IT components
• Loose-coupling
• Standards
• ?Making business IT processes Agile

• Virtualisation of resources
• Resilience
• Persistent data
• Security
• Self-management
• Load balancing
• ? Reducing TCO

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SEASIDE service integration through SOAs

• SOAs bear the promise of a new wave to achieving
  full modularity of complex software and services
  systems
• To provide support for configuration
  (model-driven development)
• composition/grouping of functional/business
  modules to generate new functionalities or
  business modules
• enabling IT business systems to evolve and
  extend without manual programming/integration
• To provide support for dynamic (runtime)
  reconfiguration
• Modifying software without stopping
  execution/processes, thus meeting the demands
  for continuous evolution of complex business
  processes
• Dynamic revision through semantically
  equivalent, dynamically-bound services
• Self-adaptation to reflect the culture of a
  client user.

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Is Service-Oriented Architectures on the critical
path in the move of Grids from e-Science to
Business ?
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This session agenda

• This year concertation will start with a debate
  on Service-Oriented Architectures
• OGSA vision for Service-Oriented
  ArchitecturesDave Berry, NESC
• Service-oriented Architectures Potential and
  ChallengesAlexander Schill, Univ. of Dresden 
• The use of SOA and GRID technology to allow
  telcos to act as efficient IP service providers
  in the futureErik Dahl, Telenor Networks
• The Enterprise Grid Alliance Reference
  Model Dave Pearson, Enterprise Grid Alliance