90. Each statistical collection has specific objectives and covers a range of data unique to that collection. Some data items will, however, overlap between collections. Consistency of definitions and classifications for the data items used in the various collections increases their value by enabling the results to be linked and compared. This Framework provides the standards for the commonly required data ('typical measures') relating to the consumer, product and supplier.
91. Where possible the classification systems recommended are the United Nations/World Tourism Organisation standard international classifications. Some Australian standards have also been adopted. The aim is to provide standards which as much as possible will:
(a) enable comparability of data between countries
(b) facilitate comparability between tourism specific collections and non-tourism statistical collections (e.g. the population census) within Australia.
92. Some of the classifications provide detail that won't be needed for some tourism collections. These detailed categories allow the flexibility to compile customised groupings. These groupings can then be identified in terms of the detailed categories in the standard classification.
93. The objectives of the survey will determine which measures will be collected. The size of a sample survey may also be a factor. A small sample size may not permit estimates with acceptable standard errors for some characteristics. A small sample size may also necessitate the use of a broader level of classification.
94. Figure 2 (located in Chapter 1, The Framework Elements) listed the typical measures identified for each of the three elements of the Framework: the consumer, the product and the supplier. This section provides definitions and classifications for each of these measures.