Successful apps work anywhere, in any channel, at any time.

Whether glancing at smartwatch notifications, texting chatbots about account info, commanding voice assistants to pay a bill, submitting forms offline on a phone, reviewing reports on a laptop tethered to a 3G hotspot, or monitoring real-time metrics of build progress on a floor-to-ceiling screen with a lightning fast connection, Pega apps and components adapt to any size or condition.

Every type of input, sensor and gesture is considered to deliver the speed, performance and consistency your users expect.



  • Use consistent UI patterns for elements that are common to a specific OS.
  • When possible, use native optimizations (e.g., web views with native container).
  • The size of components, UI elements and action areas should target the proper device size and persona. For example, because Pega allows multiple app views in a single application, one can easily create a simplified mobile and chatbot "view" for end-users and a "back office" view for employees, each using the same data and processes.


  • All interactive areas must be big enough for larger fingers.
  • Harness the expected physical gestures for interactive elements to create a sense of consistency for users.
  • Employ the various tools and sensors available on a typical device to enhance the user experience (e.g., voice command fields, physical gestures using accelerometer data).
  • Consider how various devices may work in tandem with other channel experiences to provide a more holistic feedback loop.


  • Apps work anywhere at any time, no matter the network's availability or connection quality.
  • Communicate changes or conflicts and help the user resolve them.
  • Reduce the size of images and files for slower or restricted connections.


  • Use of mobile devices is distinct from use of laptops or desktop devices and must be designed for with their unique attributes in mind.
  • Beyond limited screen size, mobile devices are often used in busy or distracting environments.
  • They must be held by hand increasing the chance that of part of the screen may be obscured from view.

Mental model

  • Mobile users tend to be goal-oriented and expect to complete a task easily and immediately.

Last updated: Mar 2017

Next: Accessibility