Objectives - IT Quality Management - page 3

Fig. 1.1 Pragmatic procedures
development. Parts of it deal with customer-supplier-processes. The ITIL library
has grown into a work of reference and thus into a near standard and covers among
many other things also such processes as release and change management. All these
cited norms and other methodologies will not be discussed in detail here.
However, from those meanwhile classical methodologies like ITIL or SPICE
quite often only fragments are used in practise. The reasons for this are to be found
in grown structures and processes in companies. A comprehensive and complete
mapping for example of the business environment according to ITIL standards prior
to project start is often difficult because of associated costs and time pressure. This
topic delivers a neutral approach, which has been put to many tests in practise. This
does not exclude that occasionally some elements from one or the other topic of
rules may appear as well. In the end there is only a limited spectrum of possible
approaches for identical problem scenarios. Figure 1.1 shows schematically the
relationships between standard methodologies and the approach offered in this
topic.
1.4 Complex Systems
Generally speaking, complex systems normally surpass an individual standard
product, which means that they include cross linking between different systems,
each of which has to take care of its proper tasks in the business environment in a
company. The functioning of such cross linking has to take place via special
interfaces. Furthermore complex systems quite often contain software components,
which have to be tailored or developed from scratch with regard to specific