Summary
User scenarios
User scenarios are the stories that are acted out or thoughts and exercises where you brainstorm and predict how certain types of users react to your website based on your personas. Despite your personas failing to use the site efficiently, you are able to pinpoint the issues and problems now rather than later and delay publishing your product or project.
Personas, scenarios and the specifics of the design, all lead to an informed and well created project/product. Without conducting extensive and quality research, your project will fail to become successful and multiple solutions would need to be made in order to make it perfect. If you do conduct this research before-hand extensively, then your project will suffer less issues, therefore making it highly successful.
Most important aspect
It is important to understand the process of using a persona and a context to drive the creation of a user scenario and the overall design of your app. Without this your app will once again have little direction and you will waste time trying to create a user scenario when you are already halfway into your project.
All Things App Design! 