EN50128 eng

EN50128 – Functional Safety in the railway industry

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The standards EN50126, EN50128 EN50129 describe the functional safety in the railway industry. These standards implement the IEC61508 for this industry. The peculiarity of the rail industry with regard to functional safety is that the systems are to be certified by an governmental authority (in Germany the federal railway authority), before they are allowed to […]

Englische Blogs

Agile development methods and Functional safety – An unbridgeable contrast? (Part 1)

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I’m convinced that agile development is an mean to achieve an more efficient software development process. However, it is also in discussion whether its possible to development in accordance with the functional safety standards if you use agile development methods. As a motivation for this blog, the following questions served me: Do you use agile […]

Config and Quality

Configuration Management: A challenging task!

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Do you know the following situation? A software project is restarted and the individual tasks are distributed within the project team. Sometime if (nearly) all roles are assigned – no one has thought about the configuration management. Often this role is quickly assigned to the project leader, because – so the assumption -there is anyway […]

Englische Blogs

Non-Functional Requirements – A challenge?

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According to my observation requirements engineering in general doesn’t get the appropriate attention. If you consider software and/or hardware projects which failed, you can see that often a missing or incorrect requirements engineering is one of the major causes. If we go further and consider the types of possible requirements, then you can make a […]

Englische Blogs

Functional Safety – What is it?

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General In the last 10 years, the term “Functional Safety” has found its way into many development departments. This goes along with the increasing popularity of electronic systems. For mechanical devices and systems, there are decades of experience, how to design and build it, so that there is no danger for the user and the […]

Englische Blogs

Traceability – Any added value?

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Think about the following situation: You are near the end of your safety-related project and you have established traceability between all the project artifacts. In an audit (e.g. Internal Quality Assurance, Customer, External Authority) you have to demonstrate which software requirements are developed from which System Requirements. Each software requirement is linked to one or […]