ESDIS Standards Office Yonsook Enloe, CTSI 3/2/152015 FGDC Meeting1.

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Presentation transcript:

ESDIS Standards Office Yonsook Enloe, CTSI 3/2/ FGDC Meeting1

What is the ESO? Former ESDSWG Standards Process Group is now the ESDIS Standards Office SPG endorsed data format standards are Level 1 requirements for new NASA missions – ESO will maintain and update that list Incorporated into ESDIS for closer ties to NASA Earth Science Data System goals and support for developing standards. Continuity of staffing to retain corporate knowledge Reviewed ESDSWG Standards Process and implemented process improvements Updated web presence for better presentation of standards and practices to the community Part of the ESDIS Common Metadata Repository (CMR) project team which is integrating ECHO, GCMD, and EMS FGDC Meeting2

ESO Standards Process ESO reviews an existing convention or standard to evaluate the technical value of the specification, determine its fitness for the purpose, confirm that working implementations exist.  Funded mission data systems can use the ESDS recommended standards with high confidence that the specification is accurate and works with NASA data in NASA environments. ESDIS project also needs to support developing and emerging standards to fulfill current and future needs of the NASA Earth science data systems FGDC Meeting3

Simplified Standards Review Process 2015 FGDC Meeting Phase 1 Document Submission Phase 2 Document Editing Phase 3 Community Review Develop idea for standard Contact ESO for initial consultation Write the document (with handy template) Gather names of people/groups who are using the spec Submit to ESO ESO reviews document, helps submitters with formatting, etc. ESO forms a TWG (Technical Working Group) to review the document TWG reviews the document for completeness, provides feedback, helps submitters complete any final edits TWG decides on review strategy (depends on kind of document) TWG develops review questions TWG sends questions to as many reviewers as possible TWG collects & analyzes results TWG makes a recommendation to ESDIS whether to adopt the document as a standard, convention, etc. or not.

Document Categories Types of Documents Standard - specification approved by a recognized standards body such as OGC, ISO Convention - specification in common use among some members of the NASA ESDS community Suggested Practice - guidance on how to apply a particular standard or convention within the NASA ESDS community Lessons Learned - document describing the use of software, protocols or processes that may be helpful to others Describing these Resources Software - library or toolkit available for use Specification - document describing a format or protocol in sufficient detail that it can be independently implemented in software Process - steps that can be followed to reach a desired conclusion Technical Note - other technical document of interest to the community For these types of Technologies (list can grow as needed) Data Format Metadata Discovery / Access 2015 FGDC Meeting5

Document Status Review Status Legacy - formal review has been bypassed for a legacy standard in common usage Monitoring - up and coming technology to watch In development Submitted In review Final Recommendation Required – probably very few standards would be required for all ESDIS systems Recommended Approved – OK to use, but similar "recommended" technology would be preferable Emerging – promising technology, not rigorously reviewed or widely adopted yet Limited – for use in certain circumstances Deprecated – don't choose for new projects Obsoleted – no longer in use Proposed – for documents still in the review process 2015 FGDC Meeting6

Developing/Emerging Standards For developing standards, different kinds of reviews are needed: Provide constructive feedback to the authors of the new specification in interim points in order to improve the quality of the developing standard Evaluate developing standards (even before complete documentation is written) through evaluating a prototype of its capabilities – can provide constructive feedback to the authors and also provide some visibility to the broader Earth science systems community FGDC Meeting7

Case Example: MENDS III Evaluation The MENDS (Metadata Evolution for NASA Data Systems) III team completed the much of the mapping of the ECHO metadata that gets returned on searches to ISO metadata. Metadata mapping is documented in intro documents, spreadsheets of crosswalks from ECHO metadata to ISO, XML fragments, etc. Extended MENDS team has reviewed all the documents as they were written. But is the document review enough in this case? ESO is supported the MENDS III evaluation by asking reviewers to exercise the Reverb/ECHO searches for data collections they have science knowledge of. Testers were asked to view the metadata search results in both ECHO-10 and ISO to confirm that the mappings work in practice FGDC Meeting8

Case Example: CMR Documents Common Metadata Repository (CMR) brings leverages ECHO, GCMD, and EMS into one system. Unified Metadata Model (UMM) documents the mapping of ECHO10, DIF, EMS metadata to ISO Series of UMM documents are being written with series of ESO reviews planned for each iteration of the documents. UMM-Common, UMM-Collections, UMM-Granules, UMM- Services, UMM-Visualization,….. 3/2/ FGDC Meeting9

ESO Links and-references 2015 FGDC Meeting10