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Pega Platform™ version 8.8 expands the scope of Constellation, a modernized, prescriptive UI architecture. Constellation offers superior efficiency and responsiveness, but supports a different feature set than the traditional, section-based UI architecture. By understanding the capabilities and limitations of each framework, you can better meet your business needs.

When choosing a UI architecture, it is important to understand that the selected UI architecture generates a set of UI rules specific for that architecture. Changing the architecture of an application requires significant manual reconfiguration and is not recommended.
NOTE: In an effort to simplify concepts and improve understanding about feature improvements, Pega has bundled all new UI technology under a new name, Constellation. What was referred to as Cosmos React is now the Constellation design system, DX API v2 is now Constellation DX API, and SDKs are now Constellation SDKs.

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

Table 1. User interface choice in Pega Platform version 8.8
Constellation Traditional UI architecture
New applications. ✓ ✓
New applications with capabilities that Constellation does not support. For more information, see Feature changes and limitations in Constellation. ✓
New applications based on a UI Kit application. Use your current UI
Existing applications. For more information, see Choosing a UI architecture. Use your current UI

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)

Constellation supports property masking only through DX components. For more information, see Creating Constellation DX components.

 ✓ ✓
OAuth 2.0 authentication ✓ ✓