---
title: NSStoryboard.SceneIdentifier
framework: appkit
role: symbol
role_heading: Type Alias
path: appkit/nsstoryboard/sceneidentifier
---

# NSStoryboard.SceneIdentifier

A string that uniquely identifies a view controller or window controller in your storyboard file.

## Declaration

```swift
typealias SceneIdentifier = String
```

## Discussion

Discussion Set scene identifiers in your storyboard by assigning a value to the Storyboard ID attribute.

## See Also

### Instantiating Storyboard Controllers

- [instantiateController(withIdentifier:)](appkit/nsstoryboard/instantiatecontroller(withidentifier:).md)
- [instantiateController(identifier:creator:)](appkit/nsstoryboard/instantiatecontroller(identifier:creator:)-7ddcf.md)
- [instantiateController(identifier:creator:)](appkit/nsstoryboard/instantiatecontroller(identifier:creator:)-50rw3.md)