The Layer 1 diagram for OSS4ITS integrated architecture shows the functional objects inside each physical element, and uses the same physical interconnects as on Layer 0. The Layer 1 diagram helps the project team and stakeholders reviewing the system documentation to see just what all of the systems are doing across all of the services or applications and the interactions (physical interconnects), and shows the mid-level perspective of the project.
The Layer 1 diagram below is generated by SET-IT, and it is a combined set of physical objects and their functional objects that are needed to support the various service packages in which they are involved for OSS4ITS project.
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Legend for physical architecture:
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