aktiviteetti(A collaborative action, such as sharing, calendar sharing, or using a whiteboard); tehtävä(A functional work structure in which one or more persons and pieces of equipment participate and in which resources are consumed, produced, and used. An activity can be decomposed into subactivities); työprosessi(A pattern of work performed together for a single purpose. An activity may use or produce work products and may be tracked by a work item); toiminto(A pattern of work performed together for a single purpose. An activity may use or produce work products and may be tracked by a work item); toiminta(In a statechart diagram, the response an object in a particular state makes to an event without changing its state. Unlike actions, activities have non-negligible execution times and can be interrupted. The keyword do indicates an activity)