The primary purpose is to provide, in a single consolidated document, an integrated approach for the key concepts and their definitions as well as rules pertaining to "coded domains" as they already exist in the multipart ISO/IEC 15944 eBusiness standard. It does so in a systematic and rules-based manner. Serves as a methodology and tool for an IT-enabled approach to existing widely used standards, specifications, authority files, pick-lists, etc., of a "codes representing X" nature, i.e. as ISO/IEC 15944-10:2013 compliant coded domains, involving the making of (legally-binding) commitments, based on common business practices. Specifies the five key characteristics of coded domains and identifies twelve benefits of the use of coded domains. A key purpose is to maximize and state very explicitly the level of "intelligence" at the highest and most precise required level with respect to the semantics of the actual data being interchanged among autonomous parties in a business transaction.