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Jan Wilmaers is a principal
consultant, and is responsible for the development of the EA
practice within Inno.com. With an engineer background and an
MBA, he has provided consultancy services for the set-up of
Enterprise Architecture practices with the financial services,
public and telecom sector. Currently, he is leading the set-up
of a business architecture group within a large government
organization.
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 Presentation
Introducing SOA into Large Organizations
The presentation is based on some concrete work done in recent years with the
introduction of service orientation within a large financial services organization,
with some additional lessons learned from the public and telecom sector. A
clear business driven approach was taken, in which business drivers as increased
product flexibility and time to market leads to a strong pressure on IT to
take a more architectural approach, with SOA as main architectural paradigm.
An Enterprise Architecture framework was chosen as key instrument to guide
the development and implementation of the SOA roadmap (as-is, to-be, architectural
initiatives). Steps taken were:
- definition of architectural vision and re-alignment
of some major re-engineering projects with this vision.
- set-up of global
architectural framework and definition of architectural roles (enterprise,
project)
- alignment of long term architectural vision within business
decision framework (strategy, budgets).
As a conclusion,
some of the lessons learned are illustrated:
- SOA (as any major architectural initiative) requires a
clear embedding within the global organizational context with impact on all
levels (technology, people, processes).
- Be clear about architectural objectives
and drive their implementation in a highly pragmatic and iterative
fashion.
- Introduction of SOA requires a cultural change
with the Enterprise Architect as facilitator and coach
of the organization.
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