An application in some approaches to non-linear phonology of a term used in traditional metrics (where it refers to the analysis of verse rhythm) for the analysis of certain rhythmic properties of speech. A phonological representation can be scanned to determine its properties - in particular, to determine whether it satisfies the locality condition at various levels in the feature hierarchy. In one approach, two kinds of scansion are recognized: in minimal scansion, a rule scans a tier which contains a target node / feature; in maximal scansion, a rule scans the highest level of syllabic structure providing access to a target node / feature. In metrical phonology, the level of scansion is the highest grid level where eurhythmy is relevant as a component of the phonology. It is typically one level down from the level of the stress peak.