Hi Syed,

For understanding the application process first you have to understand the flow,a business structure.Let take an example of customer care process which includes several option and based on the options you select it will direct to that flow.So first have a flow what you want,where it should go.Then for that development what are the required things like how many properties,data tables and any other things.Then know what are the available things in pega to achieve that requirements.So please go through pega fundamentals and system essentials courses.Then you will get an idea.

Hope it will help.

Thank you.