Adopts ISO/IEC15026-4:2012 to give guidance and recommendations for conducting selected processes, activities and tasks for systems and software products requiring assurance claims for properties selected for special attention, called critical properties. Also specifies a property-independent list of processes, activities and tasks to achieve the claim and show the achievement of the claim. Also establishes the processes, activities, tasks, guidance and recommendations in the context of a defined life cycle model and set of life cycle processes for system and/or software life cycle management.