On one side, there are those who believe that certain archaeological techniques – such as excavation or recording – are neutral and outside of the bounds of theory, while on the other are those who believe that these too are also influenced by theoretical considerations.[5] Archaeologist Ian Hodder, a prominent advocate of the latter view, criticised the alternate approach by highlighting that methodological decisions, such as where to open a trench, how diligently to excavate a stratigraphic layer and whether to keep every artefact discovered, are all based on prior theoretical interpretations of the site, and that even excavatory techniques could not therefore escape the realm of theory.[6] Those who take the former approach have sometimes tried to separate the raw data from the theoretical interpretations in their publications, but have come under criticism from those, such as Hodder, who argue that theoretical interpretation pervades the entire archaeological methodology, and therefore cannot be separated from the raw data.[7]