Concept model

A conceptual model is a representation of a system, made of the composition of concepts that are used to help people know, understand, or simulate a subject the model represents. It is also a set of concepts. Some models are physical objects; for example, a toy model which may be assembled, and may be made to work like the object it represents (Wikipedia).

I have found that a conceptual model is a great way to present a solution for people if they are on the same technical level (as you) or have no deep technical understanding. If you have ever tried to explain a solution on a technical level you know what I mean. After just a few slides of the presentation, half of the crowd is gone. The other half is fine with the presentation but the lack of conversation between the people is a setback. So instead of showing the solution and try to explain every technical term, do a nice conceptual model and most listeners will get a much better sense of the solution and questions will come from both non-technical and technical people in the room. The example below is just a sketch but the model is simple to explain to people.

Concept model

Try to explain the technical terms in your concept model fairly quickly before you present the concept model, then you can show how they are integrated into the solution. And yes, you can use the concept model without using architectural diagrams/models, which is a good way to not make half the audience listen, without an idea of ​​what you are talking about...