A computer-implemented system may include one or more storage devices storing first metadata defining an instance of a first metaobject, second metadata defining an instance of a solution supplement metaobject, wherein the second metadata comprises annotations to the first metadata, and wherein the first metaobject and the solution supplement metaobject are instances of a meta-metaobject. Also stored is executable program code of a service to determine merged metadata based on the first metadata and the annotations to the first metadata. A processor is included to execute the executable program code.