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Geometry Project. Ed Guinness MC Face-to-Face Meeting UCLA November 28-29, 2012. Background. From the August MC meeting notes:
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Geometry Project Ed Guinness MC Face-to-Face Meeting UCLA November 28-29, 2012
Background • From the August MC meeting notes: • Acton proposed PDS/IPDA ascertain functional requirements on geometry from an end user’s (scientist’s) perspective before setting out to specify what and where geometry items will be included in archives. • Showalter will have much more input in six months. • Guinness thinks that fixed set of keywords in labels may not be the solution for all data sets. • Acton proposed the topic be given real attention at some appropriate time in the future. • It was suggested that the DDWG report to MC at the next face-to-face meeting and table the discussion for six months. • About a month ago, Steve Hughes asked me to lead a DDWG subgroup on geometry. Geometry Project
Approach • A chief concern expressed by Acton is the absence of a functional view overall role of geometry in the PDS4 archive. • Functions: • Metadata for search. • Metadata for science analysis. • Ancillary data files for (more robust or more accurate) science analysis. • Geometry services, e.g., WebGeoCalc, geometry engine, Rings Node backplane generator. • Location within the archive: • Labels. • Data records. • Backplanes. • Ancillary Files. • Capture geometry requirements from discipline nodes, data providers, and data users in a white paper. • Produce a class hierarchy of geometry objects and services needed to meet the requirements. Geometry Project
Status • This approach is closely aligned with Acton's goal for the IPDA geometry project. • Acton believes the two efforts could be merged into one with PDS4 leading the charge and seeking IPDA concurrence. • Acton and I asked for inputs from MEX DAWG two weeks ago. • Nicolas Manaud agreed to send requirements based on PSA needs. • A MARSIS data user presented a scenario for searching for radar sounder data. • Action Item for discipline nodes: • Please provide Guinness and Acton vision of how geometry should fit into PDS4. • Include what should be done in PDS4 and what doesn’t work or is missing in PDS3. • Schedule: Have a draft of the white paper for the next MC face-to-face meeting. Geometry Project