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Part I. OverviewOutcome 3: Agreement upon a technical solution to create bi-directional linkages betweenmetadata-based DMAC Data Discovery services and (i) DMAC Data Transport and (ii) On-lineBrowse (and other information products).Task 1: Conduct an applied R&D activity that will explore existing technologies capable of linkingmetadata-based searches to points of data and product access. This effort must address thedynamic (changeable) nature of the access points and the problems of multiple (replicated) copiesof data sets that are available at different points.DATA TRANSPORTOutcome 4: The development of an initial semantic data model (for a restricted class of marinedata) that (i) is capable of demonstrating machine-to-machine interoperability with semanticmeaning and (ii) will form the foundation for further semantic data modeling leading (in the matureDMAC) to a comprehensive marine data model. This work will be conducted in close coordinationwith the Metadata Working Group activities.Task 1: Convene a community-based working group of data management experts from a broadrange of marine disciplines to (i) develop and document a (restricted) interim semantic datamodel and (ii) initiate development of a comprehensive semantic data model.Outcome 5: The existence of three critical infrastructure components that will be needed tosupport Data Transport for vital classes of data: biological, GIS, and “generic” (non-standardsconformant).Task 1: Conduct a software development activity to develop a linkage from biological data accessedthrough the OBIS system to the DMAC Data Transport component.Task 2: Conduct a software development activity to develop a “generic” server that would accesssuch data as ASCII tab-delimited files.Task 3: Conduct a software development activity to develop a linkage from data accessiblethrough the DMAC Data Transport component into common GIS applications.46