specifies value of has component NCBI standard project data type NCBI BioProject standard 1 1 1 1 1 Damion Dooley NCBI lists project data type and other controlled vocabulary fields at : https://www.ncbi.nlm.nih.gov/books/NBK54364/ The National Center for Biotechnology Information BioProject standard is a collection of datums that describe biological data related to a single initiative, originating from a single organization or from a consortium. A BioProject record provides users a single place to find links to the diverse data types generated for that project. http://www.ncbi.nlm.nih.gov/bioproject/ investigation identifier specification sequencing facility name specification specification of data to be generated in an investigation investigation assay specification categorical value specification metadata complete