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# AnalysisContext

Contextual information that may be shared among analyzers.

```
final class AnalysisContext
```

## Topics

### Creating a context

[`init()`](/documentation/Speech/AnalysisContext/init())

### Providing textual context

[`contextualStrings`](/documentation/Speech/AnalysisContext/contextualStrings)

Words or phrases, grouped by tag, that should be recognized even if they are not in the system vocabulary.

[`AnalysisContext.ContextualStringsTag`](/documentation/Speech/AnalysisContext/ContextualStringsTag)

### Preserving app-specific context

[`userData`](/documentation/Speech/AnalysisContext/userData)

A dictionary of application-specific contextual information.

[`AnalysisContext.UserDataTag`](/documentation/Speech/AnalysisContext/UserDataTag)


---

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