ECSS-Q-00A – Policy and Principles (19 April 1996)

This Standard has been discontinued and its content is covered by ECSS-S-ST-00C (31 July 2008) for material common to the 3 branches and by ECSS-Q-ST-10C (31 July 2008) for material specific to Q-branch.


This Standard defines the Product Assurance (PA) policy, objectives, principles and rules for the establishment and implementation of PA programmes for projects covering mission definition, design, development, production and operations of space products including disposal.

The PA discipline covers: PA management, Quality Assurance, Safety Assurance, Reliability, Availability and Maintainability Assurance, Software Product Assurance, EEE Components, Materials, Mechanical Parts and Processes. It defines their respective objectives, policies, requirements and implementation standards to achieve the stated overall PA objectives throughout the complete life cycle of the products.

The provisions of this standard apply to space products. The requirements of this standard and its associated level 2 and 3 standards should be tailored to the needs and classes of specific projects.