1.1范围1。1.1本指南解释了CAN/CSA-Q396系列中四种软件质量保证计划标准的意图，并比较了它们在全面性方面的差异。为给定软件产品选择合适的标准以及开发和实施软件质量保证计划提供了指导。本指南中对Q396的参考。1.1，Q396。1.2，Q396。2.1，Q396。2.2是CAN/CSA-Q396。1.1、关键应用软件开发的质量保证计划；CAN/CSA-Q396。1.2、关键应用中使用的先前开发软件的质量保证计划；CAN/CSA-Q396。2.1，用于开发N个关键应用软件的质量保证计划；以及CAN/CSA-Q396。2.以前用于非关键应用程序的质量保证。 1.1.2本指南讨论了遵守Q396要求的方法。1.1，Q396。1.2，Q396。2.1和Q396。2.2. CSA标准Q396。0应与正在实施的标准一起阅读，并理解它既不会减少也不会增加标准的规定要求。

1.1 Scope1.1.1This Guide explains the intent, and compares the differences in comprehensiveness, of the four Software Quality Assur ance Program Standards in the CAN/CSA-Q396 Series. Guidance is provided for selecting appropriate Standards for given software products and for developing and implementing the Software Quality Assurance Programs.References in this Guide to Q396.1.1, Q396.1.2, Q396.2.1, Q396.2.2 are CAN/CSA-Q396.1.1, Quality Assurance Program for the Development of Software Used in Critical Applications; CAN/CSA-Q396.1.2, Quality Assurance Program for Previously Developed Software Used in Critical Applications; CAN/CSA-Q396.2.1, Quality Assurance Program for the Development of Software Used in N oncritical Applications; and CAN/CSA-Q396.2.2, Quality Assurance Program for Previously Developed Software Used in Noncritical Applications.1.1.2This Guide discusses ways of complying with the requirements of Q396.1.1, Q396.1.2, Q396.2.1, and Q396.2.2. CSA Standard Q396.0 should be read in conjunction with the Standard being implemented, with the understanding that it neither reduces nor increases the specified requirements of the Standard.