HL7 Version 3 Standard: Pharmacy; Medication CMET, Release 1
CMETs (Common Model Element Types) are a work product produced by a particular work group for expressing a common, useful and reusable concept. They are generally "consumed", or used by both the producing and other work groups. CMETs are standardized model fragments intended to be building blocks that individual content domains can "include" in their designs. These blocks reduce the effort to produce a domain-specific design and assure that similar content across multiple domains is consistent.