NASA Perspectives on Data Quality July 2014. Overall Goal To answer the common user question, “Which product is better for me?”

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Presentation transcript:

NASA Perspectives on Data Quality July 2014

Overall Goal To answer the common user question, “Which product is better for me?”

Aspects of Quality

Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support

Aspects of Quality Structured Information On Quality Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support

Aspects of Quality Structured Information On Quality Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support Aspects of quality that have structured (e.g. ISO 19115/19138) largely for machines (i.e. tools & services)

Aspects of Quality Structured Information On Quality Knowledge Of Quality Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support Aspects of quality that have structured (e.g. ISO 19115/19138) largely for machines (i.e. tools & services)

Aspects of Quality Structured Information On Quality Knowledge Of Quality Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support Aspects of quality that have structured (e.g. ISO 19115/19138) largely for machines (i.e. tools & services) Tools that can make inferences on the “right” product, i.e. the most “fit for purpose” ???????

Aspects of Quality Structured Information On Quality Knowledge Of Quality Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support Aspects of quality that have structured (e.g. ISO 19115/19138) largely for machines (i.e. tools & services) Tools that can make inferences on the “right” product, i.e. the most “fit for purpose” ???????

Aspects of Quality Structured Information On Quality Knowledge Of Quality Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support Aspects of quality that have structured (e.g. ISO 19115/19138) largely for machines (i.e. tools & services) Tools that can make inferences on the “right” product, i.e. the most “fit for purpose” ???????

Aspects of Quality Structured Information On Quality Knowledge Of Quality Consumer Data Quality “Sticker” Intrinsic Aspects: Uncertainties Resolution Completeness Validation Status Extrinsic Aspects: Format Access method Documentation User support Aspects of quality that have structured (e.g. ISO 19115/19138) largely for machines (i.e. tools & services) Tools that can make inferences on the “right” product, i.e. the most “fit for purpose” ???????

BACKUP

Common Metadata Repository (CMR) Provides a single source of unified, high-quality, and reliable Earth Science metadata to that meets evolving needs of the EOSDIS community and external users e.g. DAACs, application developers and national/international agencies Provides a single ingest and search architecture for submission and discovery of all metadata Supports collections, granules and new metadata concepts (e.g. parameters, visualization, documentation) Preforms QA on new and existing metadata records (i.e. collection level) Introduces the concept of adapters to transform metadata upon ingest. Introduces the concept of a metadata lifecycle that helps evolve metadata standards to ensure ‘richness’ and new concepts proposed by stakeholders (i.e. EOSDIS and national/international agencies)

Drivers National Strategy For Civil Earth Observations, April 2013 – “Earth observations should be of known quality and fully documented.” – “Earth-observation data and ancillary information should be of known quality, meaning that they are fit for their intended use in operational missions and for planning.”