SV-4 Systems Functionality
SV-4 Description
|
SV-4
|
SV-4 Systems Functionality
|
The functions (activities) performed by systems and the system data flows among system functions (activities).
|
For a more detailed description see the DoDAF web site: SV-4: Systems Functionality.
The SV-4 model documents system functional hierarchies and system functions, and the system data flows between them. While SV-1 products describe the available interface between systems, they do not explain how these interfaces are used to exchange information or how data flows between the systems. The SV-4 model shows how data is transferred through system functions and binds these system functions to the system. Similarly, data transferred by functions can be described in a service perspective.
SV-4 HOPEX Implementation
The HOPEX DoDAF models system functions and their flow of data. System functions are the system counterpart to operational activities. A system function describes a set of system functions performed by the IT system. The system functions are linked to each other by messages that transport data.
System function modeling is similar to OV-5b and OV-6a process modeling (BPMN-based).
For more information, see:
From a system function you can create:
• a system process diagram.
• a system process (decomposition) tree diagram
System Function Properties
The Characteristics page of system function properties contains the following information:
• Identification: name, owner and comment
You can also connect the following objects to the system function in the corresponding sections:
• Operational Activities
• Systems
• Rules (system rules)
• Sub-system functions
• Owned tasks
• Systems used