{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://prism-framework.org/schema/1.0/prism-mvp/value",
  "title": "PRISM/MVP — V: Value",
  "description": "What problem we're solving: problems, value propositions, differentiators, outcomes.",
  "type": "object",
  "required": ["prism"],
  "additionalProperties": false,
  "properties": {
    "prism": {
      "type": "object",
      "required": ["layer", "schema_version"],
      "additionalProperties": false,
      "properties": {
        "layer": { "const": "value" },
        "schema_version": { "type": "string", "pattern": "^\\d+\\.\\d+$" },
        "temporal_state": { "type": "string", "enum": ["baseline", "transition", "target"] },
        "as_of": { "type": "string", "format": "date" },
        "label": { "type": "string" }
      }
    },
    "problems": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["id", "name", "segment_id", "validation_state"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "segment_id": { "type": "string" },
          "description": { "type": "string" },
          "value_type": { "type": "string", "enum": ["gain", "pain_relief", "new_possibility"] },
          "validation_state": { "type": "string", "enum": ["assumed", "observed", "validated"] },
          "evidence": { "type": "string" },
          "alternative": { "type": "string" },
          "tags": { "type": "array", "items": { "type": "string" } },
          "notes": { "type": "string" }
        }
      }
    },
    "value_propositions": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["id", "name", "segment_id", "linked_problem", "validation_state"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "segment_id": { "type": "string" },
          "linked_problem": { "type": "string" },
          "description": { "type": "string" },
          "value_type": { "type": "string", "enum": ["gain", "pain_relief", "new_possibility"] },
          "validation_state": { "type": "string", "enum": ["assumed", "observed", "validated"] },
          "evidence": { "type": "string" },
          "tags": { "type": "array", "items": { "type": "string" } },
          "notes": { "type": "string" }
        }
      }
    },
    "differentiators": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["id", "name"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "description": { "type": "string" },
          "evidence": { "type": "string" },
          "tags": { "type": "array", "items": { "type": "string" } },
          "notes": { "type": "string" }
        }
      }
    },
    "outcomes": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["id", "name", "segment_id"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "segment_id": { "type": "string" },
          "description": { "type": "string" },
          "metric": { "type": "string" },
          "validation_state": { "type": "string", "enum": ["assumed", "observed", "validated"] },
          "evidence": { "type": "string" },
          "tags": { "type": "array", "items": { "type": "string" } },
          "notes": { "type": "string" }
        }
      }
    }
  }
}