Documentation

Adds fields to express the Core Criterion and Core Evidence Vocabulary (CCCEV).

CCCEV is designed to support the exchange of information between buyers or procuring entities that define criteria and tenderers that respond to these criteria by means of evidences. Criteria can relate to bids, tenderers, lots or items.

If your data does not closely follow the Core Criterion and Core Evidence Vocabulary (CCCEV), consider the Selection criteria extension.

Modelo CCCEV

El modelo CCCEV define los siguientes conceptos:

Criterion A criterion represents a rule or principle used to judge, evaluate or assess bids, tenderers, lots or items. A criterion is satisfied when one or more of its requirement groups is satisfied.

Requirement Group A requirement group is a collection of one or more individual requirements. A requirement group is satisfied when all of it's requirements are satisfied.

Requirement An atomic requirement which can be expressed as either an expected value or a range of accepted values.

Requirement Response A requirements response is an assertion that responds to a specific requirement.

Por lo tanto, el modelo CCCEV puede usarse para expresar las condiciones AND, donde un grupo de requisitos debe cumplirse para satisfacer un criterio, así como las condiciones OR, donde existen requisitos alternativos que pueden satisfacer un criterio.

The CCCEV model also defines a number of additional concepts including formalFrameworks, used to specify the legal instruments from criteria are derived, evidence, used both to specify and provide the evidence required to support a response, and additional properties of requirements such as certificationLevel. These are not yet implemented in this extension. This extension also does not describe formulae for calculating computed values, nor does it describe whether data should be published openly or not.

Ejemplo

Criteria for an item and a tenderer, with AND and OR conditions:

{
  "tender": {
    "criteria": [
      {
        "id": "0001",
        "title": "Air intake",
        "description": "The vacuum cleaner air intake must be at least 100W",
        "relatedItem": "item1",
        "requirementGroups": [
          {
            "id": "0001-001",
            "description": "The vacuum cleaner air intake must be at least 100W",
            "requirements": [
              {
                "id": "0001-001-01",
                "title": "Air intake",
                "description": "Power of vacuum cleaner air intake in W",
                "dataType": "integer",
                "pattern": "[0-9]*",
                "minValue": 100
              }
            ]
          }
        ]
      },
      {
        "id": "0002",
        "title": "Warranty",
        "description": "The vacuum cleaner must have warranty support options for at least 36 months",
        "relatedItem": "item1",
        "requirementGroups": [
          {
            "id": "0002-001",
            "description": "The standard warranty period for the vacuum cleaner must be at least 36 months",
            "requirements": [
              {
                "id": "0002-001-01",
                "title": "Standard warranty period",
                "description": "Length of the vacuum cleaner standard warranty period in months",
                "dataType": "integer",
                "pattern": "[0-9]*",
                "minValue": 36
              }
            ]
          },
          {
            "id": "0002-002",
            "description": "The standard warranty period for the vacuum cleaner must be at least 12 months with an option to extend to 36 months",
            "requirements": [
              {
                "id": "0002-002-01",
                "title": "Standard warranty period",
                "description": "Length of the vacuum cleaner standard warranty period in months",
                "dataType": "integer",
                "pattern": "[0-9]*",
                "minValue": 12
              },
              {
                "id": "0002-002-02",
                "title": "Extended warranty option",
                "description": "There is an extended warranty option for at least 36 months",
                "dataType": "boolean",
                "expectedValue": true
              }
            ]
          }
        ]
      },
      {
        "id": "0003",
        "title": "Years trading",
        "description": "Number of years the tenderer has been trading",
        "relatesToTenderer": true,
        "requirementGroups": [
          {
            "id": "0003-001",
            "description": "Number of years the tenderer has been trading",
            "requirements": [
              {
                "id": "0003-001-01",
                "title": "Years trading",
                "description": "Number of years the tenderer has been trading",
                "dataType": "integer",
                "pattern": "[0-9]*",
                "minValue": 3
              }
            ]
          }
        ]
      }
    ]
  }
}

Responses to the criteria:

{
  "bids": {
    "details": [
      {
        "id": "1",
        "requirementResponses": [
          {
            "id": "air",
            "value": 125,
            "requirement": {
              "id": "0001-001-01"
            }
          },
          {
            "id": "warranty",
            "value": 36,
            "requirement": {
              "id": "0002-001-01"
            }
          },
          {
            "id": "years",
            "value": 10,
            "requirement": {
              "id": "0003-001-01"
            }
          }
        ]
      }
    ]
  }
}

Issues

Reporte issues para esta extensión en el repositorio de extensiones ocds, poniendo el nombre de la extensión en el título del issue.

Registro de cambios

2023-06-07

  • Remove fields:
    • Award.requirementResponses
    • Contract.requirementResponses
    • Criterion.source
    • RequirementResponse.relatedTenderer
  • Replace Criterion.relatesTo codelist field with Criterion.relatesToTenderer boolean field.
  • Remove relatesTo.csv codelist.
  • Remove responseSource.csv codelist.

2023-04-18

  • Add Criterion.relatedLots field.
  • Remove unnecessary instructions from field descriptions.

2020-06-04

  • Revisar las palabras normativas y no normativas.

2020-04-24

  • Agregar las propiedades minProperties, minItems y/o minLength.

Esta extensión se discutió originalmente en https://github.com/open-contracting/standard/issues/223.

2019-03-20

  • Establecer "uniqueItems ": true en los campos matriz y agregar "minLength": 1 en los campos de cadena obligatorios.

2018-12-18

  • Requirement.expectedValue y RequirementResponse.value permiten valores boolean.