A presentation by Traore et al. at the Workshop on Dealing with Drivers of Rapid Change in Africa: Integration of Lessons from Long-term Research on INRM, ILRI, Nairobi, June 12-13, 2008.
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Why documenting research data? Is it worth the extra effort? learnings from the Fakara metadata encoding exercise
1. Why documenting research data? Is it worth the extra effort? Learnings from the Fakara metadata encoding exercise Presented by P.S. Traoré et al.at the Workshop on Dealing with Drivers of Rapid Change in Africa: Integration of Lessons from Long-term Research on INRM, ILRI, Nairobi, June 12-13, 2008
10. Fakara commissioned study (JIRCAS – ILRI – ICRISAT – INRAN – CILSS +) Objective: Document Fakara Data collected in the Fakara area by ILRI, ICRISAT and JIRCAS, according to recognized standards and software Workplan: 1) Completion of the inventory of available data, by September 2006 through interaction with concerned scientists and a workshop 2) Encoding of data, by December 2006 3) Finalization of the Fakara Metadatabase document and submission of final report with publication list to JIRCAS, by January 2007
16. early 2000, ICRISAT involvement: characterization and in-situ evaluation of technologies
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18. African Monsoon Multidisciplinary Analysis (AMMA) (ICRISAT has recently signed a Data Agreement with AMMA/IRD allowing access to several data sets and satellite images collected within this project)
33. metadata policy = should apply not only to new datasets, but also previously created ones… by far the biggest burden for an organization, because info. required to describe past data often missed as data creators have left
34. postponing description of existing datasets will result in shinking knowledge about the datasets = NO GOOD!
35. highlights the need to plan metadata establishment ASAP for existing datasetsDrivers of Change Workshop – ILRI, Nairobi – 13 June 2008
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37. but… no standardized, unique definition of geographical datasets subjective and project/objective specific !
41. granularity is a way to define hierarchy in a dataset, helps metadata implementation- understanding commonality between elements is key… “to correctly apply a metadata standard to a dataset, it helps to understand what the single elements share in common and how they could integrate inside the dataset” (CSI, 2005) e.g. contact, distribution infos. - then, implementing inheritance is critical… “the efficient metadata management of a GIS dataset is implemented in such a way that most of the metadata info can flow from coarse level of granularity down to individual elements of the dataset” (CSI, 2005) use of metadata templates Drivers of Change Workshop – ILRI, Nairobi – 13 June 2008
42. Suggested Metadata Checklist (see Schweitzer1998*.pdf handout for details) Metadata standards are specifications they tend to emphasize fine details of geospatial data. Below are interview guidelines to fill FGDC type records 1.What does the dataset describe? 2.Who produced the dataset? 3. Why was the dataset created? 4. How was the dataset created? 5. How reliableare the data, andwhat problemsremain in the dataset? 6. How can one get a copyof the dataset? 7. Who wrotethe metadata? Drivers of Change Workshop – ILRI, Nairobi – 13 June 2008
46. Metadata records on GeoNetwork nodes Drivers of Change Workshop – ILRI, Nairobi – 13 June 2008
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48. metadata are too complicated. Private users will not create metadata because existing formats, especially MPEG-7, are too complicated. As long as there are no automatic tools for creating metadata, they will not be created.
49. metadata are subjective and depend on context. Most probably, two persons will attach different metadata to the same resource due to their different points of view. Moreover metadata can be misinterpreted due to its dependency on context.…/… (worse to come… :-) Drivers of Change Workshop – ILRI, Nairobi – 13 June 2008
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51. metadata are useless. Many of today's search engines allow finding texts very efficiently. There are other techniques for finding pictures, videos and music, namely query-by-example that will become more and more powerful in the future. Thus there is no real need for metadata.Drivers of Change Workshop – ILRI, Nairobi – 13 June 2008
52. So…?? Adapted from S. Harris Drivers of Change Workshop – ILRI, Nairobi – 13 June 2008
74. Little use without “true” trans-disciplinarity (invest more the education sector?)
75. Little use without “higher-level” research paradigms (e.g. roads or genes?)
76. Little use without “higher-level” knowledge confrontation (e.g. stochastic methods as quantitative basis for holistic reasoning) – implicit vs. explicit
77. Little use without different collaborative models (increase contact area)