What relationships are permitted between capabilities and requirements?

Comprehensive and Detailed in Depth Explanation:In ArchiMate,Capabilitiesdefine theabilities of an organizationto achieve a specific objective, whileRequirementsrepresentconditions or needsthat must be met.

TheAssigned Torelationship is used to linkcapabilities to requirements, indicating that acapability fulfills a requirement. TheRealizationrelationship is also valid because capabilitiesrealize higher-level requirementsby providing the necessary means to achieve them.

TheArchiMate 3.2 Specificationstates that aCapability can be assigned to a Requirement and can also realize a Requirement.

References:

Archi User Guide​

ArchiMate 3.2 Specification