As a designer, I should be able to create a Composite Requirement/Capabaility such as a LAMP stack. That provides/requires a set of component requrements: Linux, Apche, MySQL, PHP.

When a platform is stood up from a image, it may provide all of these capabilities.

When designing a application it is also desirable to create the relationship on a LAMP stack and not have to create all of the relationships.

It is common practice software components are grouped together and integration tested as a single unit. ie. This specific combination of components is tested and proven to work well together.

https://www.oasis-open.org/apps/org/workgroup/tosca/document.php?document_id=49635