Monthly Archives: June 2021

Use (POSIX) kernel primitives namespaces (PID, mount,…) https://man7.org/linux/man-pages/man7/namespaces.7.html – what you are allowed to see, cgroups https://man7.org/linux/man-pages/man7/cgroups.7.html – resources you are allowed to use and, LSM (Linux Security Modules) https://www.kernel.org/doc/html/v4.15/admin-guide/LSM/index.html – what you are allowed to do. All these build … Continue reading →

It is not about 1+1=2 (functional deterministic), it is about ensuring this calculation in a predefined time deterministic. Due to that a generic realtime does not exist. It is always in context of a specific timing question. Multiple notions of … Continue reading →

I personally like the following picture It just shows that ecosystems are complex systems and that many different aspects together form the truth. Some pattern can be found in multiple business areas e.g. music market keystone, as provider that others … Continue reading →

A new term is floating the architecture discussions. It is about being „composable“. Taking a functionality from A and plug it in the assembly B builds. The new „normal“ of keeping a business, an organization, an architecture, etc. active and … Continue reading →

Today’s vehicles are systems made by engineering projects, not platforms. A system describes the whole interaction between containing components with a clear set of rules. Platforms instead focus on semantics as given by APIs. Let’s compare it with processes and … Continue reading →

A common way of building services endpoints is about http://. Here the content is adressed by its location, because the next part after the schema is the network location e.g. localhost (IETF RFC 1808). Alternativelly content based adressing will always … Continue reading →

In the last century vehicles and the related mobility defined the speed of many economies. Besides carrying people and goods, they have been seen as status-symbols. This will change. Parallel to the definition of e.g. SAE J3016, the level of … Continue reading →