Analysing structure within tasks in user-centred design

The key factor in satisfying human expectation lies in identifying what the user wants to achieve. This could be in the abstract form of a mission or a more tangible and identifying form of a task or an activity. This paper presents two notions. The first notion is acknowledging that the task or activity performed has a significant focus when designing for context-sensitive and mobile systems. The second notion argues that the identification of the degree of structure within an activity can inform the level of probing and exploring required when acquiring contextual information. We outline the structure spectrum deduced from our research studies in this paper.