Material Master (Smart Materials) - The Smart Materials idents with their various accompanying attributes.
Material Master Transfer - The transfer of Smart Materials idents to SAP. SAP saves the idents and all accompanying attributes and features as materials in the SAP Material Master.
Material Master Features (Smart Materials) - All the attributes and information that exist in Smart Materials for this ident. This information also includes the SAP-specific features "mapped to it" in the interface.
Material Master Record - If you are talking about a Material Master Record in connection with the Smart Materials/SAP interface, this means the ident and all its attributes.
Material Master Data - See Material Master Record.
Attribute - This means Smart Materials commodity attributes and/or object parameter details (geometry).
Features - In connection with the Smart Materials /SAP interface, features are both attributes (see above) and the features "also mapped" in the SAP interface.
Material Class - Within Smart Materials, SAP Material Classes are reproduced. This is done by grouping idents, using Smart Materials parts.