{
  "model": {
    "TITLE": {
      "value": "Order Processing Sequence"
    },
    "AUTHOR": {
      "value": "Steve White",
      "readOnly": "true"
    },
    "MODELTYPE": {
      "value": "SEQUENCE_DIAGRAM",
      "inputType": "select",
      "refData": "MODELTYPE"
    },
    "DESCRIPTION": {
      "value": "Example sequence diagram showing order processing with synchronous, asynchronous, create, and destroy message types",
      "inputType": "textarea"
    },
    "LAYOUT": {
      "inputType": "select",
      "value": "Sequence",
      "refData": "LAYOUTTYPE"
    }
  },
  "systems": [
    {
      "ID": "CUSTOMER",
      "TEXT": "Customer",
      "TYPE": "SEQ_ACTOR"
    },
    {
      "ID": "ORDER_UI",
      "TEXT": "Order UI",
      "TYPE": "SEQ_BOUNDARY"
    },
    {
      "ID": "ORDER_CTRL",
      "TEXT": "Order Controller",
      "TYPE": "SEQ_CONTROL"
    },
    {
      "ID": "PAYMENT_SVC",
      "TEXT": "Payment Service",
      "TYPE": "SEQ_COMPONENT"
    },
    {
      "ID": "ORDER_DB",
      "TEXT": "Order Database",
      "TYPE": "SEQ_DATABASE"
    },
    {
      "ID": "NOTIF_SVC",
      "TEXT": "Notification Service",
      "TYPE": "SEQ_COMPONENT"
    }
  ],
  "interactions": [
    {
      "ID": "MSG1",
      "FROMID": "CUSTOMER",
      "TOID": "ORDER_UI",
      "TEXT": "placeOrder(items, paymentInfo)",
      "TYPE": "SEQ_SYNC_CALL"
    },
    {
      "ID": "MSG2",
      "FROMID": "ORDER_UI",
      "TOID": "ORDER_CTRL",
      "TEXT": "createOrder(orderData)",
      "TYPE": "SEQ_SYNC_CALL"
    },
    {
      "ID": "MSG3",
      "FROMID": "ORDER_CTRL",
      "TOID": "PAYMENT_SVC",
      "TEXT": "processPayment(amount, method)",
      "TYPE": "SEQ_SYNC_CALL"
    },
    {
      "ID": "MSG4",
      "FROMID": "PAYMENT_SVC",
      "TOID": "ORDER_CTRL",
      "TEXT": "paymentConfirmation",
      "TYPE": "SEQ_RETURN"
    },
    {
      "ID": "MSG5",
      "FROMID": "ORDER_CTRL",
      "TOID": "ORDER_DB",
      "TEXT": "saveOrder(order)",
      "TYPE": "SEQ_CREATE"
    },
    {
      "ID": "MSG6",
      "FROMID": "ORDER_DB",
      "TOID": "ORDER_CTRL",
      "TEXT": "orderId",
      "TYPE": "SEQ_RETURN"
    },
    {
      "ID": "MSG7",
      "FROMID": "ORDER_CTRL",
      "TOID": "NOTIF_SVC",
      "TEXT": "sendConfirmation(orderId, email)",
      "TYPE": "SEQ_ASYNC_CALL"
    },
    {
      "ID": "MSG8",
      "FROMID": "ORDER_CTRL",
      "TOID": "ORDER_UI",
      "TEXT": "orderConfirmed(orderId)",
      "TYPE": "SEQ_RETURN"
    },
    {
      "ID": "MSG9",
      "FROMID": "ORDER_UI",
      "TOID": "CUSTOMER",
      "TEXT": "displayConfirmation",
      "TYPE": "SEQ_RETURN"
    },
    {
      "ID": "MSG10",
      "FROMID": "NOTIF_SVC",
      "TOID": "CUSTOMER",
      "TEXT": "emailConfirmation",
      "TYPE": "SEQ_ASYNC_CALL"
    }
  ]
}