{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.govfresh.com/v1/projects/milestone.schema.json",
  "title": "Milestone",
  "description": "A dated point of progress in a project. Linked to its project with schema:about (schema:superEvent accepts only an Event). Status and dates follow the Open Contracting Data Standard milestone: dueDate is when it is scheduled, dateMet is when it was reached.",
  "standards": [
    "ocds"
  ],
  "type": "object",
  "properties": {
    "@context": {},
    "@id": {
      "type": "string",
      "format": "iri",
      "description": "This milestone's own dereferenceable identifier."
    },
    "@type": {
      "const": "Milestone"
    },
    "name": {
      "type": "string",
      "description": "The milestone's title, e.g. 'Public beta'."
    },
    "description": {
      "type": "string"
    },
    "url": {
      "type": "string",
      "format": "iri"
    },
    "about": {
      "$ref": "../_core/reference.schema.json",
      "description": "The `Project` this milestone belongs to."
    },
    "status": {
      "type": "string",
      "description": "termCode from the `MilestoneStatus` code list (OCDS). Not the project status vocabulary.",
      "enum": [
        "scheduled",
        "met",
        "notMet",
        "partiallyMet"
      ]
    },
    "dueDate": {
      "type": "string",
      "format": "date",
      "description": "When the milestone is scheduled to be reached."
    },
    "dateMet": {
      "type": "string",
      "format": "date",
      "description": "When the milestone was actually reached."
    }
  },
  "required": [
    "@id",
    "@type",
    "name",
    "about"
  ],
  "additionalProperties": true
}