{
  "subject": "phones",
  "columns": [
    {
      "key": "price",
      "type": "numeric",
      "goal": "min",
      "is_objective": true,
      "full_name": "Price",
      "range": {
        "low": 0,
        "high": 400
      },
      "format": "number:2"
    },
    {
      "key": "weight",
      "type": "numeric",
      "goal": "min",
      "is_objective": true,
      "full_name": "Weight",
      "format": "number:0"
    },
    {
      "key": "brand",
      "type": "categorical",
      "goal": "min",
      "is_objective": true,
      "full_name": "Brand",
      "range": [
        "Apple",
        "HTC",
        "Samsung",
        "Sony"
      ],
      "preference": [
        "Samsung",
        "Apple",
        "HTC"
      ]
    },
    {
      "key": "rDate",
      "type": "datetime",
      "goal": "max",
      "full_name": "Release Date",
      "format": "date: 'MMM dd, yyyy'"
    }
  ],
  "options": [
    {
      "key": "1",
      "name": "Samsung Galaxy S4",
      "values": {
        "price": 249,
        "weight": 130,
        "brand": "Samsung",
        "rDate": "2013-04-29T00:00:00Z"
      }
    },
    {
      "key": "2",
      "name": "Apple iPhone 5",
      "values": {
        "price": 349,
        "weight": 112,
        "brand": "Apple",
        "rDate": "2012-09-21T00:00:00Z"
      }
    },
    {
      "key": "3",
      "name": "HTC One",
      "values": {
        "price": 299,
        "weight": 112,
        "brand": "HTC",
        "rDate": "2013-03-01T00:00:00Z"
      }
    },
    {
      "key": "4",
      "name": "Samsung Galaxy S5",
      "values": {
        "price": 349,
        "weight": 135,
        "brand": "Samsung",
        "rDate": "2014-04-29T00:00:00Z"
      }
    },
    {
      "key": "5",
      "name": "Apple iPhone 6",
      "values": {
        "price": 399,
        "weight": 118,
        "brand": "Apple",
        "rDate": "2013-09-21T00:00:00Z"
      }
    },
    {
      "key": "6",
      "name": "Apple iPhone 7",
      "values": {
        "price": 499,
        "weight": 118,
        "brand": "Apple",
        "rDate": "2014-09-21T00:00:00Z"
      }
    },
    {
      "key": "7",
      "name": "Sony Xperia",
      "values": {
        "price": 199,
        "weight": 120,
        "brand": "Sony",
        "rDate": "2014-08-21T00:00:00Z"
      }
    }
  ]
}
