Material - Corresponds to the Smart Materials Ident.
Material Number - Material Numbers are a unique alphanumeric description of the SAP Materials.
Material Master (SAP) - The set of SAP Materials, including all the Features.
Material Master Data Features - Correspond to the SAP Master Data fields.
Classification Profiles - Features that can be allocated to a Material Class.
Material Master Features (SAP) - Full set of Material Master Data Features and Classification Profiles.
SAP Material Class - Within SAP, Features (Classification Profiles) can be allocated to a Material Class.
IDOCs - Corresponds to a sort of data capsule in which logical SAP data can be transferred. It includes, for example, materials, requisitions, and so forth.
TRFC (Transactional Remote Function Call) - These are used for the online exchange of IDOCS with a SAP system. TRFC is a method standardized by SAP of exchanging SAP data.
EDI (Electronic Data Interchange) - This is a standard method of data communication supported by SAP. It is a method of offline communication; that is, the data (in this case, IDOCS) is transferred by data file, such as by using FTP.