# Feature comparison
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The following table compares key features between IDC and Amazon Q Business implementations:


| Feature | IDC Implementation | Non-IDC Implementation | 
| --- | --- | --- | 
|  User management  |  AWS Identity Center  |  Amazon Quick  | 
|  Amazon Quick authentication methods  |  Identity Center Only  |  Native identities (username/password), AWS Managed Microsoft AD, IAM federation  | 
|  Amazon Q Business authentication methods  |  `AWS_IAM_IDC`  |  `AWS_QUICKSIGHT_IDP`  | 
|  Share permissions  |  Amazon Q Business Console and Knowledge base permissions page  |  Amazon Quick Knowledge Base Permission page (Automatic)  | 
|  Index compatibility  |  All indexes  |  All indexes  |