0 - Manage ITS DFD
Data Flow Diagram 0 called "Manage ITS" shows the nine functional process trees that encompass all the functionality of the National ITS Architecture. The processes within these nine bubbles make up the functional decomposition of the Logical Architecture and are designed to satisfy all of the functional requirements of the 33 User Services (as defined in the User Service Requirements (USRs)). The processes have been created using a modular approach to enable partial or full deployment of functions depending on technological developments, and the needs of the implementers and stakeholders (jurisdictional authorities and private organizations). The modular approach also allows the inclusion of other later architecture developments without needing major changes.The processes subordinate to this DFD are themselves DFDs:
1) Manage Traffic
2) Manage Commercial Vehicles
3) Provide Vehicle Monitoring and Control
4) Manage Transit
5) Manage Emergency Services
6) Provide Driver and Traveler Services
7) Provide Electronic Payment Services
8) Manage Archived Data
9) Manage Maintenance and Construction
A tenth process is shown on DFD 0 called "Satisfy Implementation Requirements." This process represents the physical implementation of functions and communications links that are required by the architecture. It has no data flows or logical functions but is needed in order for the Logical Architecture to satisfy all of the User Service Requirements (USR's).
DFD: 0 - Manage ITS
Parent DFD: Context Diagram
Child DFDs:
- 1 - Manage Traffic
- 2 - Manage Commercial Vehicles
- 3 - Provide Vehicle Monitoring and Control
- 4 - Manage Transit
- 5 - Manage Emergency Services
- 6 - Provide Driver and Traveler Services
- 7 - Provide Electronic Payment Services
- 8 - Manage Archived Data
- 9 - Manage Maintenance and Construction
