Community Research and Development Information Service - CORDIS


In the frame of the European Commission's activities on the harmonization of nuclear safety requirements and practices, a task force of experts from nuclear safety institutes was launched with the mandate of reaching a consensus among its members on a number of software licensing issues selected for their practical importance to safety. The task force focused its attention on computer-based systems used in nuclear power plants for safety functions of the highest criticality level, namely those systems classified by the International Atomic Energy Agency as safety systems. This report contains the conclusions reached so far. In a first phase of investigation, the task force identified what were believed to be, from a regulatory viewpoint, some of the most important and practical issue areas raised by the licensing of software important to safety. In a second phase, for each issue area, the task force strove for and reached a common position in terms of licensing requirements and minimal evidence which should be required. For each issue area, the best design and licensing recommended practices, and in certain cases alternatives which could be acceptable, were also proposed.

Additional information

Authors: CEC, CEC Bruxelles (BE)
Bibliographic Reference: EUR 18158 EN (1998) 61pp., FS, ECU 10
Availability: Available from the (2)
ISBN: ISBN 92-828-2355-5
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