Requirement and Test Traceability

Requirement and Test Traceability – Any added value?

Veröffentlicht Veröffentlicht in Englische Blogs, Requirements Engineering eng, Uncategorized

Requirement and Test Traceability: 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 […]

EN50128 and EN50657 support tools

EN50128 and EN50657 support tools

Veröffentlicht Veröffentlicht in EN50128 eng, EN50657 eng, Englische Blogs

Chapter 6.7 of EN50128 and EN50657 support tools and languages defines requirements for software tools that are used in a safety-relevant development process. Project team members in safety projects discuss the content and meaning of this chapter again and again. The following article summarizes the essential requirements and derives a practical guide for use in […]

EN50128 and EN50657 support tools

EN50128 und EN50657 Unterstützende Werkzeuge

Veröffentlicht Veröffentlicht in Config and Quality, Deutsche Blogs, EN50128, EN50657, EN50657 eng, Englische Blogs

Das Kapitel 6.7 der EN50128 und EN50657 Unterstützende Werkzeuge und Sprachen definiert Anforderungen an Software Werkzeuge, welche in einem Sicherheits-relevanten Entwicklungsprozess eingesetzt werden. Projektmitarbeiter in Sicherheitsprojekten diskutieren immer wieder den Inhalt und die Bedeutung dieses Kapitels. Der nachfolgende Beitrag fasst die wesentlichen Anforderungen zusammen und leitet eine Praxisleitfaden für die Anwendung im Projekt ab. Was […]

data- and control flow

Requirement completeness using data- and control flow analysis

Veröffentlicht Veröffentlicht in Englische Blogs, Functional Safety

Carrying out a data- and control flow analysis is required in almost all functional safety standards (ISO 26262-6 Table 7 Measures 1f/g, DO 178C Table A-7 Measure 8 and EN 50128, EN 50657Table A19 Measures3/4). In comparison to other measures, the data and control flow analysis causes a lot of questions, when it comes to […]

The non-intrusive measurement of structural coverage

The non-intrusive measurement of structural coverage!

Veröffentlicht Veröffentlicht in Englische Blogs, Functional Safety

The measurement of structural source code coverage is nowadays defined as an important procedure in many functional safety standards. The non-intrusive measurement of structural coverage offers completely new possibilities in the future. For a long time, it was industry-wide consensus that structural coverage should and could only be determined in so-called white-box tests. In many […]

Functional Safety Basic Standard IEC61508

IEC 61508 – The Functional Safety Basic Standard

Veröffentlicht Veröffentlicht in Englische Blogs, IEC61508 eng

The Functional Safety Basic Standard IEC61508 is often referred to as the mother of all functional safety standards. This standard was introduced in 1998 with the intention of defining cross-industry processes and methods to be used for safety-relevant electrical, electronic and programmable electronic systems. IEC61508 is applied if no industry-specific standards are available for this […]

zertifizierte Werkzeuge, Tool qualification

IEC 61508 – Tool qualification – When? Why? How?

Veröffentlicht Veröffentlicht in Englische Blogs, IEC61508 eng

The term tool qualification triggers an unpleasant feeling and uncertainty in many people who deal with functional safety. IEC61508 requires the certification of software tools used for software development. Other functional safety standards also require similar measures. Unfortunately, however, the same terms are not always used. IEC61508 uses the term „certified tools“, often the term […]

RTCA DO 331 Model-Based Development RTCA DO 331 Modellbasierte Entwicklung

RTCA DO 331 Model-Based Development and Verification in aerospace

Veröffentlicht Schreibe einen KommentarVeröffentlicht in DO178 eng, Englische Blogs

With the enhancement of the RTCA DO178B to the RTCA DO178C, four so-called supplements have also been developed. The RTCA DO 331 Model-Based Development is one of these four supplements and describes the requirements for model-based development and verification in aerospace. The following article provides answers to the following questions: How is the RTCA DO331 […]

pragmatic software development

Functional safety and pragmatism is that possible?

Veröffentlicht Schreibe einen KommentarVeröffentlicht in Englische Blogs, Functional Safety

Many people associate with the implementation of functional safety, a lot of formalism, and unnecessarily extensive documentation and many processes with a high proportion of theoretical framework. And yes, such projects are existing very often and in every industry. My experience shows that such projects are not very powerful when measured by the real implementation […]