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Public Safety Impact

Public Safety Impact v2.0.1

A coarse-grained representation of impact to public safety.

Value Definition
Minimal Safety Impact:Negligible
Significant Safety Impact:(Marginal OR Critical OR Catastrophic)
{
  "namespace": "ssvc",
  "version": "2.0.1",
  "schemaVersion": "1-0-1",
  "key": "PSI",
  "name": "Public Safety Impact",
  "description": "A coarse-grained representation of impact to public safety.",
  "values": [
    {
      "key": "M",
      "name": "Minimal",
      "description": "Safety Impact:Negligible"
    },
    {
      "key": "S",
      "name": "Significant",
      "description": "Safety Impact:(Marginal OR Critical OR Catastrophic)"
    }
  ]
}

See also

This is a compound decision point, therefore it is a notational convenience.

Suppliers necessarily have a rather coarse-grained perspective on the broadly defined Safety Impact Decision Point. Therefore we simplify the above into a binary categorization:

  • Significant is when any impact meets the criteria for an impact of Marginal, Critical, or Catastrophic in the Safety Impact table.
  • Minimal is when none do.

Prior Versions

Public Safety Impact v2.0.0

A coarse-grained representation of impact to public safety.

Value Definition
Minimal Safety Impact:(None OR Minor)
Significant Safety Impact:(Major OR Hazardous OR Catastrophic)
{
  "namespace": "ssvc",
  "version": "2.0.0",
  "schemaVersion": "1-0-1",
  "key": "PSI",
  "name": "Public Safety Impact",
  "description": "A coarse-grained representation of impact to public safety.",
  "values": [
    {
      "key": "M",
      "name": "Minimal",
      "description": "Safety Impact:(None OR Minor)"
    },
    {
      "key": "S",
      "name": "Significant",
      "description": "Safety Impact:(Major OR Hazardous OR Catastrophic)"
    }
  ]
}

Public Well-Being Impact v1.0.0

A coarse-grained representation of impact to public well-being.

Value Definition
Minimal The effect is below the threshold for all aspects described in material.
Material Any one or more of these conditions hold. Physical harm: Does one or more of the following: (a) Causes physical distress or injury to system users. (b) Introduces occupational safety hazards. (c) Reduces and/or results in failure of cyber-physical system safety margins. Environment: Major externalities (property damage, environmental damage, etc.) are imposed on other parties. Financial: Financial losses likely lead to bankruptcy of multiple persons. Psychological: Widespread emotional or psychological harm, sufficient to necessitate counseling or therapy, impact populations of people.
Irreversible Any one or more of these conditions hold. Physical harm: One or both of the following are true: (a) Multiple fatalities are likely.(b) The cyber-physical system, of which the vulnerable componen is a part, is likely lost or destroyed. Environment: Extreme or serious externalities (immediate public health threat, environmental damage leading to small ecosystem collapse, etc.) are imposed on other parties. Financial: Social systems (elections, financial grid, etc.) supported by the software are destabilized and potentially collapse. Psychological: N/A
{
  "namespace": "ssvc",
  "version": "1.0.0",
  "schemaVersion": "1-0-1",
  "key": "PWI",
  "name": "Public Well-Being Impact",
  "description": "A coarse-grained representation of impact to public well-being.",
  "values": [
    {
      "key": "M",
      "name": "Minimal",
      "description": "The effect is below the threshold for all aspects described in material. "
    },
    {
      "key": "M",
      "name": "Material",
      "description": "Any one or more of these conditions hold. Physical harm: Does one or more of the following: (a) Causes physical distress or injury to system users. (b) Introduces occupational safety hazards. (c) Reduces and/or results in failure of cyber-physical system safety margins. Environment: Major externalities (property damage, environmental damage, etc.) are imposed on other parties. Financial: Financial losses likely lead to bankruptcy of multiple persons. Psychological: Widespread emotional or psychological harm, sufficient to necessitate counseling or therapy, impact populations of people. "
    },
    {
      "key": "I",
      "name": "Irreversible",
      "description": "Any one or more of these conditions hold. Physical harm: One or both of the following are true: (a) Multiple fatalities are likely.(b) The cyber-physical system, of which the vulnerable componen is a part, is likely lost or destroyed.  Environment: Extreme or serious externalities (immediate public health threat, environmental damage leading to small  ecosystem collapse, etc.) are imposed on other parties.  Financial: Social systems (elections, financial grid, etc.) supported by the software are destabilized and potentially collapse.  Psychological: N/A "
    }
  ]
}