Failure codes captured in a CMMS should be consistent with failure modes because failure-mode language is what makes maintenance history analytically useful. A CMMS is not only a work-order record system; when coded correctly, it becomes a reliability data system that allows recurring failure patterns to be identified, quantified, and corrected. Failure consequences describe the business or operational impact after the failure occurs, such as lost production, safety exposure, or environmental impact. Failure effects describe what happens when the failure occurs. Those are important in FMEA and RCM, but the code structure used for field data must connect most directly to how the asset failed. That is why option B is the strongest answer. ISO 14224-based reliability data structures recognize failure mode, failure cause, and failure consequence as separate failure-data concepts, and reliability guidance also stresses that work-order failure modes should be comparable with RCM/FMEA failure-mode analysis. This supports defect elimination, bad-actor analysis, PM optimization, and better maintenance strategy decisions.