This Standard has been cancelled and replaced by ECSS-E-10 Part 6A Rev.1 (31 October 2005).
This Standard provides an overview of the respective purposes and positions of functional and technical specifications, their required contents, and the process for developing these documents.
This Standard is applicable to all types of space systems, all product elements, and projects.
NOTE Tailoring is a process by which individual requirements of specifications, standards and related documents are evaluated and made applicable to a specific project, by selection and in some exceptional cases, modification of existing or addition of new requirements. [ECSS-M-00-02A, clause 3]