The literature on identity presents many approaches subsumed by the term ‘identity’ which emphasise differing identity processes. Those presented here reflect a wide range. In so far as each approach has validity in conceptualising identity processes, it must be capable of being integrated into a unified conceptualisation. The following thumbnail sketches provide only synoptic accounts of distinguishing features. Their purpose is no more than to highlight their contributions to underpinning or informing the ISA conceptualisation.