Describing a Scenario of Application System Environment Flows
A scenario of application system environment represents the flows exchanged between the components of the application system environment.
For more details on use of a scenario of flows, see Using a Scenario of Application Flows DiagramThe elements of a scenario of application system environment are:
• the main application system principal described by the environment.
An application system is an assembly of other application systems, applications and end users interacting with application components to implement one or several functions.• partner application systems that represent the other application system with which the main application system described by the environment interacts.
A partner application system is an application system external to the environment of the described application service. The partner application system can be a service supplier or a service consumer with respect to application system users.• End User Participants that represent the categories of users of application system provided by the environment.
• The categories of users of services provided by the environment are represented either by an Org-Unit or by a Position Type.
An org-unit represents a person or a group of persons that intervenes in the enterprise business processes or information system. An org-unit can be internal or external to the enterprise. An internal org-unit is an organizational element of enterprise structure such as a management, department, or job function. It is defined at a level depending on the degree of detail to be provided on the organization (see org-unit type). Example: financial management, sales management, marketing department, account manager. An external org-unit is an external entity that exchanges flows with the enterprise. Example: customer, supplier, government office.A position type represents a status assigned to an individual or a group of individuals with the aim of defining an organization or a hierarchy.• Service interactions between components
A Service Interaction represents an interaction for service purpose between entities in a specific context inside or outside a company. These entities can be enterprise org-units, applications, activities or processes, as well as external org-units. The content of this interaction is described in a service interface.