1.2.6 - Maintain Static Data for TMC DFD
This DFD shows the processes that make up the Maintain Traffic and Sensor Static Data facility within the Manage Traffic function. These processes provide static data for use by facilities within the function.The key points about the facility are as follows:
- Static data maintained by Traffic Operations Personnel;
- Current static data can be retrieved and sent to the Manage Archived Data function.
There are two processes in this DFD:
a) Maintain Traffic and Sensor Static Data (1.2.6.1)
b) Provide Static Data Store Output Interface (1.2.6.2)
The two processes in this facility must be implemented as a pair. This is because process (b) is driven to provide its outputs by process (a) and relies on that process to provide the data in the store. Process (a) may also receive a request for a copy of the current static data from the Manage Archived Data function. In this case it requests the current data from the processes that serve the stores in the Provide traffic Surveillance and Manage Incidents facilities - see DFDs 1.1 and 1.3, and combines the data that they provide with that in its own store. This combined set of data is then sent to the Manage Archived Data function.
DFD: 1.2.6 - Maintain Static Data for TMC
Parent DFD: 1.2 - Provide Device Control
PSpecs in this DFD:
- 1.2.6.1 - Maintain Traffic and Sensor Static Data
- 1.2.6.2 - Provide Static Data Store Output Interface
