Trends in maintainability and reliability of avionic systems with particular reference to DCAD Technical Publication 1/77

The paper reviews the procurement situation in respect of the reliability and maintainability aspects of the UK Ministry of Defence contracts prior to the introduction of the DCAD Technical Publication 1/77, discusses in general the content of the document and the translation of the document´s principles into a form suitable for inclusion in contracts, reviews its application and gives some indications to the direction in which reliability and maintainability activities should proceed to meet the challenges of to morrow´s systems.