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Im aktuellen Newsletter DDI DIRECTIONS der DDI Alliance, der insbesondere über die Mailingliste [DDI-users] versandt wird, ist wieder die Kolumne Read-Write-Execute (RWX) erschienen, die auf wissenschaftliche Publikationen aus dem Bereich Metadaten hinweisen will:

The DDI Community has produced a rich store of DDI and metadata-related publications. Read-Write-Execute (RWX) will highlight some of these existing publications as well as new work as it is produced. The first column featured some of the foundations of DDI in scientific literature. This second column will revisit some of the top impact publications related to DDI from the last 20 years.

It is not surprising that the DDI publications with many citations cover more high level discussions rather than specific technical details. But revisiting conceptual fundamentals or policy goals, comparing standards, and evaluating approaches should also be done if one is currently planning the next project. So, let’s take a look at some of the top cited DDI publications over the last 20 years.

When Ryssevik and Musgrave (2001) write about their social science dream machine, they were thinking about the distributed NESSTAR system, which is based on DDI. But there is nothing wrong with the idea of an “integrated resource discovery gateway and search system to identify and locate these resources” which consists of not less than “all existing empirical data” (what is today called federated search). And being able to convert an “extensive amount of metadata … totally integrated with the data as such” to a number of formats and copy them to a local machine is a reasonable wish. The same holds true with “an efficient feedback system to the body of metadata, allowing the user to add to the collecting memory of a data set”. Even “The FAIR Guiding Principles for scientific data management and stewardship” (doi:10.1038/sdata.2016.18) from 2016, which are considered to be state of the art, do not cover the range of features Ryssevik and Musgrave describe.

The most cited publication in 2004 contains an important reminder: “Technology itself, however, will not fulfill the promise of e-science, Information and communication technologies provide the physical infrastructure. It is up to national governments, international agencies, research institutions, and scientists themselves to ensure the institutional, financial and economic, legal, and cultural and behavioural aspects of data sharing are taken into account.” (Arzberger et al. 2004: 137) The use of DDI, especially at ICPSR, serves as a use case for the technological domain where access and usability and multiple use of the data must be assured by interoperability.

While Arzberger et al. look at use cases from different disciplines in the different identified domains, Willis, Greenberg and White (2012) compare nine metadata standards in order to understand similarities and differences. They consider DDI as the standard to describe social science statistical data from experimental, observational, and statistical studies. The objective to cover the whole data lifecycle is unique to DDI. DDI is one of two standards which “are intended to be comprehensive, yet support instances of description using a minimal number of required elements.” They conclude that metadata scheme creation depends more on the goals than on the discipline or type of data described (p.1517). At the same time the common discipline specific approach contributes “to artificial boundaries between disciplines and impede interdisciplinary and transdisciplinary reuse” (p. 1516).

For Jeffrey et al. (2014), who describe the CERIF approach to design a research information management system, domain specific metadata standards build the lowest of three levels of information. The first level consists of information on research output (organized by flat metadata like Dublin Core similar to a catalogue card). The second level is built by contextual metadata, which can generate the discovery metadata of level one and point to the domain metadata of level three (which could be DDI). The contextual metadata hold information about base entities (e.g., persons and publications) and connect them using a semantic layer with flexible link entities, which can express roles (defined by a term which captures the semantics and a controlled vocabulary to which the term belongs (p. 10) and have a start and end date). Using this semantic layer a publication can have an author, a publication date, and even a country of publication (using so called localisation entities).

This small list of four top publications related to DDI:

• shows us that looking more than 15 years back might yield new insights into new products from old ideas,
• reminds us that technology does not solve social problems,
• reveals different perspectives on the discipline specific fragmentation of metadata standards,
• and gives an insight into a concept of a flexible and expressive linking mechanism.

References

(also available at Bibsonomy)

Arzberger, P., Schroeder, P., Beaulieu, A., Bowker, G., Casey, K., Laaksonen, L., Moorman, D., Uhlir, P. & Wouters, P. (2004). Promoting Access to Public Research Data for Scientific, Economic, and Social Development. Data Science Journal, 3, 135-152. doi:10.2481/dsj.3.135

Jeffery, K., Houssos, N., Jörg, B. & Asserson, A. (2014). Research Information management: the CERIF approach. International Journal of Metadata, Semantics and Ontologies, 9, 5-14. doi:10.1504/ijmso.2014.059142

Ryssevik, J. & Musgrave, S. (2001). The Social Science Dream Machine: Resource Discovery, Analysis, and Delivery on the Web. Social Science Computer Review, 19, 163-174. doi:10.1177/089443930101900203

Willis, C., Greenberg, J. & White, H. (2012). Analysis and Synthesis of Metadata Goals for Scientific Data. Journal of the American Society for Information Science and Technology, 63, 1505–1520. doi:10.1002/asi.22683

A bibliography of DDI articles, working papers, and presentations is being built and is available at Bibsonomy.org with easily reusable bibliographic metadata. This metadata will also be made available on the DDI Alliance website. Suggestions for papers and topics for RWX, or the bibliography, are appreciated and can be sent to: Knut Wenzig, kwenzig@diw.de