The interaction of a hierarchy of PEAKFLOW users with the application is shown in the following figure:
The most basic PEAKFLOW user is the 'ADAPS Coop' user. This user may only retrieve peak flows. The 'ADAPS User' user can manage peak flows and produce an end of year summary in addition to being able to retrieve peak flows. The 'ADAPS Reviewer' user has the capabilities of an 'ADAPS User' along with the ability to review peak flows. The 'ADAPS SysDBA' user has the capabilities of an 'ADAPS Reviewer' along with the ability to administer peak flows. The following sections describe these use cases in more detail.