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DEF STAN 00-60 (PART 0)/3

Section Five. Data Management

14 Introduction

It is essential that data be transferable between the ILS activities described in this Defence Standard. The flow and access to data will allow the processes to be performed more efficiently, concurrently or sequentially, as appropriate, and with strict configuration management. The tools which facilitate this interaction are the Data Dictionary of this Defence Standard and that of S2000M, LSAR Relational Tables, Business Rules and Reports, Standard Generalized Mark up Language (SGML) Tag Set and EDI, which are expanded in this Section.

15 Data Dictionary

15.1Defence Standard 00-60 Data Dictionary. The Defence Standard 00-60 Data Dictionary defines all Data Elements required to record results in the LSAR, from the business processes detailed in this Defence Standard. It includes data elements identified as necessary to allow transfer of information between the processes, but excludes those data elements peculiar to Parts 23 to 26 of this Defence Standard. The Data Dictionary of this Defence Standard ensures that terms (name, syntax and meaning) used to describe items of data are consistent throughout this Defence Standard; it is published at annex C along with related technical data.

15.2S2000M Data Dictionary. The S2000M Data Dictionary defines data elements required for the ISSP business processes detailed in Parts 22 to 26 of this Defence Standard. However, data elements in the S2000M Data Dictionary used for the ISSP business processes detailed in Part 21 of this Defence Standard are subsumed in the Data Dictionary at annex C.

16 LSAR Relational Tables Business Rules and Reports

To facilitate linking of the LSA, IP, Codification and Electronic Documentation processes, Relational Tables, Business Rules and Reports have been created, along with data elements and these are defined in annex C. There is no requirement to pass information between IP and Electronic Documentation other than via the LSAR.

17 SGML

This Defence Standard profiles ISO 8879 (SGML) for exchanging Electronic documentation data. ISO 8879 describes a standard way of defining the structure of a document without reference to its format. Use of SGML requires the production of an SGML declaration and a Document Type Definition (DTD).

17.1 DTD. A DTD describes how document elements are structured. Once a document, report or data element is tagged in this way, it is not reliant on software or hardware configurations, hence it is neutral.

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DEF STAN 00-60 (PART 0)/3

17.2 Application of SGML. Parts 10 and 11 of this Defence Standard describe the detailed application of SGML.

18 EDI

EDI is the automated exchange of predefined and structured data, for some business purpose, between information systems of two or more parties. EDI transactions shall be covered by an EDI agreement between the communicating parties.

18.1 On line EDI does not yet successfully handle the exchange of large data files, such as multiple drawing and graphics files. Until this is resolved, the data exchange standard shall be MIL STD 1840. This allows interchange using bulk storage media (magnetic tape and optical media).

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