The last few years have shown us all that you have to act fast and often digitise old, analogue processes or products. The adaptation from analogue to digital can be manifold. In the past, you used to turn the lights on and off with a conventional light switch, but now you can do it with an app on your smartphone. Another example would be the retail sector, which had to close down due to COVID restrictions, so many shops were more or less forced to open an online shop in order to continue selling their goods. This thesis looks at how best to achieve such a digital adaptation of an analogue product. The aim, however, is to ensure that a consistent experience is created. This does not mean that the user experience of the digital and analogue products should be exactly the same. Rather, the user should feel as if they are in a single ecosystem. This also involves looking at what 'best practices' can be extracted from the two worlds and transferred and applied to the other. These identified points, such as the principle of mental models, the structural design of a product or modular formats, are then examined with the help of experts in the field of user experience.