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UI architecture comparison

Applicable to Cosmos React applications

Pega Platform version 8.6 introduces Cosmos React, a modernized UI architecture that uses ReactJS libraries to create a new run time. Cosmos React offers superior efficiency and responsiveness, but supports a narrower feature set than the default architecture of Theme Cosmos. By understanding the limitations of either framework, you can better meet your business needs.

The following table presents recommended uses for the two UI architectures.

User interface choice in Pega Platform version 8.6

Cosmos React Theme Cosmos
New applications
New applications with capabilities that Cosmos React does not support. For more information, see Feature limitations in Cosmos React.
New, simple applications without unsupported features of Cosmos React in 8.6, and can be enhanced incrementally as the new Cosmos React UI evolves. For more information, see Feature limitations in Cosmos React.
New application based on an UI Kit application See Best practices for using Cosmos React in new and existing applications.
Existing applications. See Best practices for using Cosmos React in new and existing applications.
Application features
Mashup
Mobile
Offline mode
Accessibility
Localization
Reporting
Simple reporting and data exploration
Complex reporting with sub-reports and joins
Application UI that uses data from reports with complex joins
Authentication
Attribute-based access controls (ABAC)
OAuth 2.0 authentication
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