An OIE framework conceptualise organisations as comprising a multitude of (interaction) rules and routines which bring conesion and underlying stability to organisational practice.rules are the formally recognized way in which things should be done , and their repetition can shape what we define as being routines or "the way in which things are actually done".Over time, the interaction between organisational rules and routines can take on more normative traits and become institutionalised. An institution is "a way of thought or action of some prevalence and premanence, which is embedded in the habits of a group or the customs of a people". In this paper we are particularly concerned with intra-organisational institutions; that is, the taken-for-granted and unquestioned 'things we do around here',embedded within and specific to individual organisations.