Tag Archives: Development

Architecture Product Development

[001] From Components to Functions

Orthogonality between functional view and componenet view in system engineeringWhen talking about aspects like functional safety, reliability or availability of technical systems, a crucial point is to clearly define, what we are talking about. Do we mean the components, the hardware, when we say “The system is unreliable.” or “We have 99.99% availability.” ?

“The system” is indeed made up of a lot of individual components – blue in this figure. But at the end of the day we’d like to have functionality, performance, not hardware. All components are only used and needed to implement the desired functions – yellow in the figure.

So we usually have given requirements on the functional level, but need individual items – with their own properties – to make these functions work. No more, no less. The procedure of doing that by selecting, combining, assembling components appropriatelyis what we usually call “Engineering” – the art of Engineering.

In the next post we are going to show the two inverse views within system engineering and safety engineering.

General Product Development

[000] What is it about?

Training and education (cartoon)Here we intend to write in a sporadic manner about the development of the library.

We will talk about the motivation, ideas behind, requirements, some principal ideas, arithmetics, design issues and possible application scenarios. But also on general aspects of system engineering and safety engineering.

The more mature the library gets, we will probably show its capability to support in various RAMS analyses, FMEA and FMECA  generation, Fault Tree Analyses, diagnosis, support of safety standards and safety integrity levels (SIL) and the like.

And we will demonstrate some of these things in video clips.

So come back soon or subscribe to the mailing list. In post [001] we will start with clarification of the system engineering view on components and function.