02708nas a2200241   4500000000100000000000100001000000100002008004100003653000500044653001500049653000900064653001000073653001700083653002400100653001800124100001600142245004400158856006000202300001400262490000700276520216800283022001502451       2008                            d10a10awork roles10awork10atasks10aLIS research10ainformation science10atask analysis1 aIsto Huvila00aWork and work roles: a context of tasks  uhttp://www.emeraldinsight.com/10.1108/00220410810912406  a797–8150 v643 aPurpose: Both task-based and work oriented research approaches have proved their value in information science research. A task is a workable analytical unit of human activity, which brings the level of explication close enough to cater for individual actions and their consequences. Similarly, work and work roles have been effective concepts at explicating the broad patterns of professional information activity. Major issues of the existing approaches are the difficulty of conceptualising the contexts of tasks and the relatively high level of abstraction of a work level scrutiny. The purpose of this paper is to discuss how the concepts of ‘work’, ‘work role’ and ‘task’ might be integrated into a common research agenda. We suggest that the explication of work and work roles might serve in providing additional understanding on the formation of the purposes, meanings and values, which guide the shaping of the activities conceptualised as tasks.Methodology/Approach: The issue is discussed in general with a reference to an empirical study of information work of archaeology professionals informed by the notion of work role. Findings: It is suggested that the broader notions of work and work roles are useful concepts for explicating the context of more specific tasks.Research limitations/implications: The suggested approach brings together task and work – work role-based research and provides a basis for exploring human information activity from a broader perspective than before and thus improving the general understanding of why and how information is used as it is used.Practical implications: The study provides an approach to conceptualise the ways how people work with information and lays the ground for improving information management and organisation practices.Originality: There has been little prior discussion about integrating the task and work-based approaches. We suggest that the explication of work and work roles might serve in providing additional understanding on the formation of the purposes, meanings and values, which guide the shaping of the activities conceptualised as tasks.  a0022-0418