ABSTRACT
Activities of human beings usually take place in a wider organizational context. The activities of one person are related to the activities of others. Usually an organization is divided into units. An example is a post office. This office has different organizational units, for instance, concerning sales, mail delivery and financial matters. Within a unit people are employed in certain jobs. Let’s consider a job at the stamp window. The employee has different tasks such as selling stamps and paying money orders. To perform the task to sell stamps, different actions are needed, such as handling the stamps, accepting the money and returning the change. The relations between jobs, tasks and actions are presented in Figure 5.1.
