11 Assurance Case Development The Assurance Case is used to document adherence to platform and application software SDOs such that an auditor or inspector can clearly discern how each SDO was applied and how the software development complies with the first principles of protection against software CCF. Any exceptions taken to application of SDOs should be clearly documented with an explanation of why the excluded SDO was not applicable or essential to software development quality. Appendix B provides a suggested roadmap for developing the assurance case.
