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Theories

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Arc UI System is a practical implementation of the BT Enterprise Digital Design Language 2021+ (DDL). To learn more about the DDL, please see this Figma presentation.

The four cornerstone theories from the DDL form the basis of Arc.

Drawing from the portal, use curves to soften edges and create an organic look and feel.
Use light and energy to light the way for customers towards a ‘happy path’ or desired action.
Use perspective, space and layers to create depth.
Moving in every sense and guiding users with motion.