Casework Improve UX built on the GDS.UK prototype kit.
Go to the GOV.UK Prototype Kit site to download the latest version and read the documentation.
If you publish your prototypes online, they must be protected by a username and password. This is to prevent members of the public finding prototypes and thinking they are real services.
You must protect user privacy at all times, even when using prototypes. Prototypes made with the kit look like GOV.UK, but do not have the same security provisions. Always make sure you are handling user data appropriately.