Příspěvek k archeologizaci keramiky a výpovědní hodnotě nálezových souborů z pražských Vysočan

The paper focuses on analysis of medieval pottery assemblages collected during a rescue archaeological excavation in the centre of Prague-Vysočany in 1999 and 2002. Pottery assemblages are described and their formal properties are then analysed. Some specific problems of site formational processes such as residuality and infiltration are discussed and an example is used to illustrate how to deal with intrusions of pottery shards in archaeological contexts. Pottery assemblages were compared by two characteristics that reflect the degree of influence and archaeological transformation – the degree of heterogeneity and the fragmentation of pottery shards. To measure the heterogeneity, the Shannon diversity index was used