1 ).
In systems engineering (system development) the boundaries between the different
disciplines continue to blur. Especially software is used in more and more
fi elds. These hybrid systems represent a particular challenge to the development.
We can use proven methods to effi ciently develop individual components of a
complete system. However, the complete system is more than the sum of its components.
The interplay between all the elements can be extremely complex and
hard to control.
The need for a holistic line of thinking is particularly strong in the software
development fi eld. Embedding a piece of software in a system is a critical complexity
factor. The consequence is that both approach models and notations are
required to be able to develop these systems effectively. Otherwise the development
cost will rise out of proportion compared with an acceptable price in the
near future.
Systems engineering has been dealing with this problem for quite some time.
The development of large systems in which many different disciplines participate
requires holistic lines of thinking.
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