The Layer 0 diagram shows the high level summary view of the integrated architecture diagram for OSS4ITS, showing all the physical elements in the entire project and high-level links or physical interconnects to show which elements are connected to each other and the type of communication that may be required. This diagram does not include the functional objects which will be shown in Layer 1 and Layer 2 diagrams. The Layer 0 diagram is helpful for the external stakeholders or decision makers to quickly get the project-level perspective and see the scope of the project.
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