TS EN 62628

TS EN 62628 is a guidance standard focused on how software aspects influence dependability, and on how dependability in software performance can be improved and assessed. Its technical emphasis is broader than code quality alone: management disciplines, design processes, and the application environment all shape whether software behaves dependably in service.

What dependability means in a software context

In general technical use, dependability is an umbrella concept closely associated with reliability, availability, maintainability, and integrity. For software systems, these qualities are not achieved by implementation alone; they depend on clear requirements, sound architecture, disciplined development and verification, and an operating context that matches the intended use. The standard’s subject is therefore both technical and lifecycle-oriented.

The framework described by the standard

• A generic framework for software dependability requirements.
• A software dependability process for system life cycle applications.
• Assurance criteria and a methodology for dependability design and implementation.
• Practical approaches for performance evaluation and measurement of dependability characteristics in software systems.

As a result, the document is best understood as a structured guide for applying dependability thinking to software-intensive systems, rather than as a narrow product specification. It helps connect requirements, design decisions, implementation practices, and evaluation activities so that dependability can be addressed in a consistent way across the life cycle.

TS EN 62628 is based on IEC 62628:2012 and serves teams that need concept-level and process-level guidance on software dependability, especially where software behavior is shaped by both engineering decisions and the surrounding operational environment.