DYA as Working Model
A theoretical model has true value when it can be used in everyday
practice. This is why the theoretical model has been complemented
with a working model. The working model allows the theoretical model
to be brought into practice. The DYA working model consists of three
main processes: (1) the Strategic Dialogue, (2) Architectural Services,
and (3) Development with(out) Architecture.
The Strategic Dialogue determines which business objectives will
be pursued--and ensures that the right things are done at the right
time. This dialogue defines a business objective in a business case
and then elaborates the objective as a concrete project proposal. This
process is a collaboration of business and IT management who
together determine which business objectives should be pursued.
Multidisciplinary teams, working closely together, next further detail
these objectives in business cases. A business case describes how an
objective can be reached, what this entails for the organization, and
what the financial consequences will be in terms of investment, annual
costs, and returns. If the result of a business case is positive, a concrete
project proposal is formulated.
Architectural Services is the process in which architectures are
developed and made available to business case teams and project
teams. It is a cyclical process in which the level of architecture is
continually being raised. Architectural Services facilitates both the
Strategic Dialogue and the Development with Architecture processes.
The trigger for Architectural Services is always a concrete business
case that needs further elaboration. Architectural Services ensures that
things are done correctly.
Development with(out) Architecture achieves concrete business
objectives within the desired time frame, with the desired level of qual-
ity, and with acceptable costs.
Development with Architecture is the standard and every project
team following this strategy is furnished with the project-start archi-
tecture. The general architectural rules, guidelines, and models are
"translated" into a project-start architecture that meets the specific
problems confronting the project. The project-start architecture de-
Dynamic Enterprise Architecture
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