with large sets of miscellaneous, heterogeneous and unstruc- tured data. It implies that tools and techniques have to be de- signed to disambiguate it before putting it together to master and manage data of organizations. Our work is similar to in the approach. We discuss challenges and opportunities of semantics in the age of Big Data and present the supply chain to handle it. Therefore, this article defines Big Data (Section 2), briefly discusses its management (Section 3) and finally tack- les Big Data and semantics challenges and opportunities (Sec- tion 4).