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 IEC 61508

Functional Safety Basic Standard IEC 61508

Veröffentlicht Veröffentlicht in Englische Blogs, FuSaBasicStandard

The Functional Safety Basic Standard IEC 61508 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 […]

zertifizierte Werkzeuge, Tool qualification

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

Veröffentlicht Veröffentlicht in Englische Blogs, FuSaBasicStandard

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 Aerospace, Englische Blogs

With the enhancement of the RTCA DO 178B to the RTCA DO 178C, 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 […]

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 […]

supplements of DO 178C

Supplements of DO 178C – Where do they come from and what is their content?

Veröffentlicht Schreibe einen KommentarVeröffentlicht in Aerospace, Englische Blogs

With the enhancement of the RTCA DO 178B to the RTCA DO 178C, four so-called supplements have been developed. These supplements of DO 178C define the conditions under which modern software development methods can be used in aerospace. If you look at the history of the RTCA DO 178, you will notice that changes to […]

RTCA DO 178C

RTCA DO 178C – Software quality in aerospace!

Veröffentlicht Schreibe einen KommentarVeröffentlicht in Aerospace, Englische Blogs

RTCA DO 178C – The Myth! As early as 1980 there were first considerations in aerospace how to develop software safely and as accurately as possible. These considerations have led to the development of a standard that is widely respected far beyond software. Currently in the version RTCA DO 178C. The standard is used in […]

Security for Embedded Systems – What lies ahead of us?

Veröffentlicht Schreibe einen KommentarVeröffentlicht in Englische Blogs, Security eng

The need for security protection measures in the Office IT environment is obvious since years. Firewall, virus scanner, encryption of data: Office IT is no longer thinkable without these aspects. On the other hand, security for embedded systems is relatively new. These systems are already vulnerable to possible malicious attacks. For a long time there […]

Requirement Engineering Embedded versus IT

Requirement Engineering Embedded versus IT systems

Veröffentlicht Schreibe einen KommentarVeröffentlicht in Englische Blogs, Requirements Engineering eng

Requirement Engineering Embedded versus IT: If you analyses the book market, publications or conferences on requirements management and Requirement Engineering, you will find that more than 90% consider requirements engineering from the point of view of IT software systems. There are very few publications that look at the topic from the perspective of embedded systems. […]