The Sāmoa Archaeological Geospatial Database: Initial description and application to settlement pattern studies in the Sāmoan Islands.

Clusters of associated features—such as house foundations and other domestic features, or related defensive features—were regarded as single settlement units and therefore assigned one site number. Discrete and comparatively isolated structural remains (e.g., terraces, tia ‘ave [star mounds], paths, and walls) were given individual site numbers. Furthermore, to single out members of different site categories, specialized sites were assigned individual site numbers even if found in close spatial association with other features. These site categories are tia ‘ave and basalt quarries. In some cases, ditches and other features that are in proximity to and were probably functionally related to tia ‘ave have been grouped with the tia ‘ave [typo in original corrected] (p.10)