A requirements traceability matrix (RTM) is a tool that helps to map and track the user requirements with the test cases, and to ensure that the requirements are met by the solution. A RTM can also include other attributes or characteristics of the requirements, such as priority, risk, complexity, source, owner, etc. One of these attributes can be the system and architectural stability, which reflects the degree of reliability, robustness, and resilience of the system and its architecture. By including this attribute in the RTM, the business analyst can ensure that the requirement meets the acceptance criteria for system and architectural stability, and that the test cases can verify and validate this attribute. A RTM can also help to identify any gaps, inconsistencies, or conflicts between the requirements and the test cases, and to manage any changes or issues that may arise during the development process. References: = 1, 2