For many years, tailorability has been identified as a very important property of system design in order to take care of the emerging users needs towards their working environments. In the same time component-based approaches have been revealed as an interesting solution for tailorability, allowing dynamic integration of components in global environments supporting specific tasks. However, component technologies still face some drawbacks mainly due to a semantic problem. In order to palliate these lacks we propose in this paper a new solution that tends to merge tasks models, from the HCI research field, and existing component models. It particularly consists in a new design approach — the Task Oriented (TO) approach — supported by STOrM, a tool dedicated to the creation and manipulation of Task Oriented Components (TOCs).