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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by S. R. Hall and B. McMahon © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. G. ch. 2.6, p. 70
Section 2.6.6.3. DDL2 definitions describing methods
a
Protein Data Bank, Research Collaboratory for Structural Bioinformatics, Rutgers, The State University of New Jersey, Department of Chemistry and Chemical Biology, 610 Taylor Road, Piscataway, NJ 08854-8087, USA, and bSchool of Biomedical and Chemical Sciences, University of Western Australia, Crawley, Perth, WA 6009, Australia |
In this section, the DDL categories that define the methods associated with data blocks, categories, subcategories and items are presented. Figs. 2.6.4.1![[link]](/graphics/greenarr.gif)
, 2.6.4.2 and 2.6.4.3 illustrate the relationships between the method categories and other DDL categories.
The METHOD_LIST category defines methods that can be associated with data blocks, categories, subcategories and items. This category attempts to capture only the essential information required to define these methods, without defining any implementation details. The implementation details are appropriately left to application-dictionary developers. It is assumed here that, within a domain of dictionaries, a consistent method interface will be adopted that is tailored to the requirements of that domain. This of course complicates the sharing of methods between domains; however, it would be impossible at this time to define an implementation strategy inside the DDL that would even begin to satisfy the diverse requirements of potential DDL users. Consequently, the definition of each method is limited to: its unique identifier, _method_list.id; a textual description, _method_list.detail; the source text of the method, _method_list.inline; the name of the language in which the method is expressed, _method_list.language; and a code to identify the purpose of the method, _method_list.code.
