Selection criteria for archiving non-current data in land information system
An important consideration in developing a temporal component for spatial information systems lies in determining which data sets are worthy of archiving and which ones need not be retained after their currency ceases. For many natural resource and socio-economic based systems (often termed Geographical Information Systems), the choice is usually clear since certain historical data will usually be needed as the basis for longitudinal analysis. However in the case of parcel-based Land Information Systems (LIS) established for administrative purposes, the answer is not always so obvious. This is compounded by the difficulty in assessing what the likely value of non-current data, within this latter type of system, may be in the years to come and who the potential users might be. The purpose of this paper is to present and discuss the selection criteria which professional archivists use in making such decisions and to examine the application of these procedures in the context of LIS.