Visual presentation of the requirements is a vital communication step between a Solution architect and a customer. There are several types of demos that you can use along with your story presentation to the stakeholders:
Out-of-the-box - this demo presents the capabilities of the out-of-the-box solution without any customizations. It provides information to the stakeholders about the system's current functionality. The out-of-the-box demo does not illustrate the requirements but only familiarizes customers with the core features.
Prebuilt - this demo is tailored to the particular vertical and provides more specific to the stakeholders' business information than an out-of-the-box demo.
Prototype - this demo presents the minimally tailored out-of-the-box solution that reflects the customer's needs or requirements.
Proof of concept - this demo focuses on illustrating the implementation of the particular requirements, components, or technical solutions.
Reference:
https://docs.microsoft.com/en-us/learn/modules/propose-solution/3-demo