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# PSce Accumulator Object

PSDATA constant data Acc. Object has been stored each PSce primitive or JSON based datas. And ***we can say that Each PSce can hold its own data***.

Developers can model their needs data with PSDATA. 

```javascript
async function putScenarioBaseData(param,val)
{
    PSDATA[param]=val;
    await Map.saveMap(JSON.stringify(PSDATA));
}

 async function getScenarioBasedData(param)
{
    return PSDATA[param];
}
```

If we give an example above function

```javascript
async function init()
{
    PSDATA["myKey"]="myValue";
    await Map.saveMap(JSON.stringify(PSDATA));
    // return a transactionHash
}
async function getMyData()
{
    return PSDATA["myKey"];
    // returns "myValue";
}
```

When user execute set function ,system will start to create a new transaction to deliver other nodes.