Field Maintenance Equipment --> Field:
field equipment software install/upgrade
Definitions
field equipment software install/upgrade (Information Flow): This flow supports installation and update of software residing in ITS roadway equipment. It supports download of the software installation files, including executable code and associated support files.
Field Maintenance Equipment (Source Physical Object): 'Field Maintenance Equipment' represents the portable equipment used by field personnel to locally troubleshoot, initialize, reprogram, and test infrastructure equipment. It may include a laptop, specialized diagnostics tools, or any other general purpose or specialized equipment that is interfaced locally to infrastructure equipment to support maintenance and repair.
Field (Destination Physical Object): This general physical object is used to model core capabilities that are common to any piece of field equipment.
Included In
This Triple is in the following Service Packages:
This triple is associated with the following Functional Objects:
This Triple is described by the following Functional View Data Flows:
This Triple has the following triple relationships:
None |
Communication Solutions
- TUF - Guaranteed Secure Internet (ITS) (4)
- (None-Data) - Guaranteed Secure Internet (ITS) (32)
Selected Solution
Solution Description
ITS Application Entity
No Standard Needed |
Click gap icons for more info.
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Mgmt
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Facilities
TUF |
Security
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TransNet
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Access
Internet Subnet Alternatives |
Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.
Characteristics
Characteristic | Value |
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Time Context | Static |
Spatial Context | Adjacent |
Acknowledgement | True |
Cardinality | Unicast |
Initiator | Source |
Authenticable | True |
Encrypt | True |
Interoperability | Description |
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Local | In cases where an interface is normally encapsulated by a single stakeholder, interoperability is still desirable, but the motive is vendor independence and the efficiencies and choices that an open standards-based interface provides. |
Security
Information Flow Security | ||||
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Confidentiality | Integrity | Availability | ||
Rating | Moderate | High | High | |
Basis | Field equipment software could be sensitive, both from a vulnerability assessment standpoint and because the software itself may be competition-sensitive. | Software updates to Roadway Equipment must be authenticated as having come from a source entitled to provide that software, or roadway equipment may be comprimised. Similarly, such software must be guaranteed to being the intent of the originator; not manipulated midstream or corrupted, or the roadway equipment may be mis-configured or compromised. | Without the ability to locally diagnose, operate, update and configure ITS Roadway Equipment, the equipment is effectively out of control and would have to be taken out of service. |
Security Characteristics | Value |
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Authenticable | True |
Encrypt | True |