A specific application of the Operational Resource Flow Internal Description is to describe a logical pattern of resource (information, funding, personnel, or materiel) internal flows.
Implementation
OV-2 can be represented using:
An OV-2 diagram which is based on the UML Class diagram.
An OV-2 diagram which is based on the UML Composite Structure diagram.
A UML Class diagram.
A UML Composite Structure diagram.
A SysML Block Definition diagram.
A SysML Internal Block diagram.
The Needlines established in an OV-2 can be realized by resources and their interactions in a SV-1 Systems Interface Description model or SvcV-1 Services Context Description model.
In developing an Architectural Description, OV-2 and OV-5b Operational Activity Model are often the starting points and these may be developed iteratively. OV-2 focuses on the Operational Resource Flows, with the activities being a secondary adornment. The OV-5b, on the other hand, places first-order attention on operational activities and only second-order attention on Resource Flows, which can be shown as annotations or swim lanes on the activities.
