Introduction
One of the most powerful ways of making data more meaningful for analysis is to combine it with reference data and code sheets. Unlike transaction data – such as statistical time series or budget figures – reference data does not describe observations about reality – it merely contains additional details on category schemes, government programmes, persons, companies or geographies mentioned in the data.
For example, in the German federal budget, each line item is identified through an eleven-digit code. This code includes three-digit identifiers for the functional and economic purpose of the allocation. By extending the budget data with the titles and descriptions of each economic and functional taxonomy entry, two additional dimensions become available that enable queries such as the overall pension commitments of the government, or the sum of all programmes with defence functions.
The main groups of reference data that are used with government finance include code sheets, geographic identifiers and identifiers for companies and other organizations.
