Siegfried Heintze's engagements with Nokia mobile phones
May to November of 1999.
Siegfried delivered ten days of instruction to Nokia QA engineers: a course on Object-Oriented Analysis and Design (OOAD) and C++/COM programming. Most of the students were electrical engineers whose focus had been automating the testing instrumentation using the C programming language. This made the OOAD class both the most difficult and most valuable class they had ever attended.
During many visits to the manufacturing plant I guided the object-oriented analysis and design efforts. This took the form of many group meetings where the team modelled the new system using the Rational Rose products with an overhead projector. During this time we greatly reduced the number of classes.
Minimizing Vender Dependence: A plethora of existing brands from UNIX, Windows, Oracle databases to BEA application servers and Microsoft COM components had to work in concert together. With such an assortment of vendors it was clear that writing vendor independent code was not possible. However, we were to try to minimize our use of any vendor specific features. This meant avoiding Visual Basic or MFC/C++. Since we could not avoid Micrsoft's COM some team members had been contemplating Microsoft's J++. I guided the team to use a more appropriate technology (2 years later we learn that Microsoft is abandoning Java and J++).
Encapsulating the Database: Management had mandated that the database should be completely seperate. It was to be designed and implemented by a different team that was to design an API to access that information.
Mangement adopted my recommendation that the two projects be integrated, and put into the added role of database design.
Planning the Implementation
After identifying the optimal technology to implement each component new teams of two or three engineers were formed. I facilitated the assignment of these new smaller teams to various aspects of the developement effort according to their skills.Back to résumé.
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