Industrial organizations are moving toward more integrated supply chains (SCs) to remain competitive. To be effectively designed and managed, these SCs need to be measured and evaluated in a consistent way. The formal definition of different metrics, benchmarks and performance related concepts will facilitate the measurement process and enable the effective communication among the SC stakeholders. For this reason, it is important to acquire a common and unified understanding of the SC associated performance, process and structure concepts. With this intention an extension of SCOntology [1] is proposed.