A Corporate Data Repository (CDR) is a corporate database or information system used to integrate the information system resouces of an organisation by sharing a common data model.

A CDR needs to hold at least the following information:

• The people of the organisation - staff, customers, visitors
• The roles played by the people of the organisation
• The units and structure of the organisation
• The organisation to which each person belongs.

Additional information might include:

• The projects on which people work
• The services offered by the organisation
• The authorisation of each person.

Typically, a CDR might be used to provide corporate services such as user authentication and authorisation through a SSO mechanism on the Web. Single sign-on (SSO) is a specialized form of software authentication that enables a user to authenticate once and gain access to the resources of multiple software systems. ...

An recent example of a CDR is the one developed at CCLRC. This is a temporal database based on the CERIF standard and Codd's RM/T. The Council for the Central Laboratory of the Research Councils (CCLRC or CLRC) is a UK government body that carries out civil research in science and engineering. ... A temporal database is a database management system with built-in time aspects, e. ... The Common European Research Information Format (CERIF) standard was developed in the late 1980s by the European Union. ... Relational Model/Tasmania (RM/T) was published by E.F. Codd in 1979 and is the name given to an extension of his relational model published in 1970. ...

External links

• A Corporate Data Repository for CCLRC using CERIF by E. Grabczewski, S.Crompton, S.K. Robinson and T.H. Hall (2004)

See also

Data modelling In information system design, data modeling is the analysis and design of the information in the system, concentrating on the logical entities and the logical dependencies between these entities. ...