QWE2002 Paper 2A
Dr. Rainer Stetter
(ITQ GmbH & Software Factory GmbH)
Steps to Bring the V-
Model Into Real Life: A Case Study
- Explanation of different roles in the V-Model.
- Hints to avoid pitfalls in process improvement.
- Testing of Embedded Systems.
The V-Model defines a sound and well-designed
engineering process. But real life in industry shows that it is
quite hard to bring this model into the daily work flow of
organizations. In this presentation I will show which steps have
to be taken to install the basic principles of the V-Model. The
basis of the presentation is the summary of experiences of a
project which already started in 1997 and is still running. The
subject of the project is the stepwise development of a complex
machine which produces smart cards (id-cards and ec-cards). The
software system for this kind of machine includes almost all
software technologies which are known today. To bring
alphanumerical data into the system you have an interface to an
IBM Mainframe. The graphical data (photos and finger prints) are
transferred to a windows NT system. The user interface has to
handle Arabic and roman letters. All data are stored in an
Oracle data base. The communication of the user interface !
with the embedded components runs via TCP/IP. Each of the
(mechanical) modules of the machine has its own processor which
runs under VxWorks. The low end version of this machine contains
about 10 processors which have to be synchronized. The high
version consists of about 20 processors.
About the Author
At the Technical University, Munich (Germany) Dr. Rainer Stetter
studied mechanical engineering and as he was interested in software
engineering he took some classes in computer sciences. While he was
doing his PhD in developing a robot simulation system, which he got
1993, he improved his knowledge in software engineering. Form 1993
until 1997 he was working as a Research & Development Manager at
Zwick Company, Ulm Germany.
Since 1997 he has been one of the presidents of the Software Factory
GmbH, Munich. In addition, since 1998 he has been working with the
Munich based firm ITQ GmbH as president. Together, Software Factory
GmbH and ITQ GmbH form the Software Quality Group. With some
partners of the Technical University of Munich and VDMA (German
Machinery and Plant Manufacturers Association), they work on
approaches to improve the quality especially in the field of embedded
systems. Since 1998 Im Vice President of the VDMA Software