I can say that I was fully engaged in creating the product from scratch. I started with researching the subject area, studying the industry, and potential competitors. I thought through how the product should work as a whole and for each participant individually. All possible user flows and interfaces for each process participant were considered.
The project was quite extensive, so at a certain point, more designers were also involved, and my role changed to a product owner's role. From that moment on, I worked with designers and developers teams, setting tasks and defining deadlines. I also made a decision regarding which MVP was possible to launch the project with.