Brown Dog (BD) data transformation services, Data Access Proxy (DAP) and Data Tilling Service (DTS), provide data format conversions and metadata extractions from data content functionalities, respectively, through a set of consistent and programmable REST APIs. These services also exist as framework and are extensible by design. DAP, built on top of Polyglot framework and DTS, built on top of Clowder framework, support contribution of new BD tools from users across various research domains and making the tools available for other users to use. A BD tool is a Brown Dog script/program that wraps any piece of code, software, library or webservice and exposes their data format conversions and/or metadata extraction or analysis capabilities. The tool is customized to fit into the ecosystem of either Polyglot framework (data format conversions) or Clowder framework (metadata extractions), and is made available through DAP/DTS APIs.
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