---
title: QualityOfService.background
framework: foundation
role: symbol
role_heading: Case
path: foundation/qualityofservice/background
---

# QualityOfService.background

## Declaration

```swift
case background
```

## Discussion

Discussion Used for work that is not user initiated or visible. In general, a user is unaware that this work is even happening. For example, pre-fetching content, search indexing, backups, or syncing of data with external systems.

## See Also

### Constants

- [QualityOfService.userInteractive](foundation/qualityofservice/userinteractive.md)
- [QualityOfService.userInitiated](foundation/qualityofservice/userinitiated.md)
- [QualityOfService.utility](foundation/qualityofservice/utility.md)
- [QualityOfService.default](foundation/qualityofservice/default.md)