OME will allow data centers like the ORNL DAAC to produce meaningful, high quality, standards-based, descriptive information about their data products in-turn helping with the data discoverability and interoperability.References: Devarakonda, Ranjeet, et al. Without proper metadata associated with the data, it is difficult to find the data you are looking for and equally difficult to use and understand the data.

Typically data produced, archived and analyzed is at a scale of multiple petabytes, which makes the discoverability of the data very challenging. The DAAC provides data and information relevant to biogeochemical dynamics, ecological data, and environmental processes, critical for understanding the dynamics relating to the biological components of the Earth's environment. The ORNL DAAC archives data produced by NASA's Terrestrial Ecology Program.

How is OME helping Big Data Centers like ORNL DAAC? The ORNL DAAC is one of NASA's Earth Observing System Data and Information System (EOSDIS) data centers managed by the ESDIS Project. Researchers simply use the ORNL Metadata Editor to enter relevant metadata into a Web-based form. In addition, the metadata produced using OME will allow other researchers to find these data via Metadata clearinghouses like Mercury. Such information helps put the research findings in context. Metadata include information about the specific projects, parameters, time periods, and locations associated with the data. The newly developed ORNL Metadata Editor (OME) is a Web-based tool that allows users to create and maintain XML files containing key information, or metadata, about the research. eXtensible Markup Language (XML) is the preferred output format for metadata, as it makes it portable and, more importantly, suitable for system discoverability. In general terms, Metadata represents the who, what, when, where, why and how of the dataset. This 'description' about a data is called Metadata. Nobody is better suited to 'describe' data than the scientist who created it.

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