- TIBCO BusinessEvents®
- Standard
- Instance

# Instance.isModified()

## Signature

`boolean isModified (Concept instance)`

## Domain

ACTION, CONDITION, BUI

## Description

This function returns true if `instance` has been modified by a currently running RTC.

## Parameters

Name | Type | Description
--- | --- | ---
`instance` | `Concept` | The Concept instance to test for modification.

## Returns

Type | Description
--- | ---
`boolean` | True if `instance` has been modified during a current RTC.

## Cautions

This function works differently with scorecards than with concept instances. There is only one instance of a scorecard per agent, rather than one per RTC. So after a scorecard is modified it will return true until the agent is restarted.