Finding the right level
In general, try to adhere to the Pareto principle: make sure to get the entities right, and then try to get 80% of the fields in 20% of the time. Remember—this book is about low code using Appian. Things can easily be changed once created. Just make sure not to start before reaching 80% of confidence so as not to miss an important aspect.
Pareto Principle
This is also known as the 80/20 rule. In projects, it is often used to describe the invested effort versus the completion of work. Typically, 20% of the effort is spent on the first 80% of the work. For the remaining 20% of the work, you need 80% of the effort.
Start with the basic functional data the business process needs. This data is probably already available from other systems. Talk to an IT architect to understand the data structures and determine which parts you need. In case your process needs data from multiple systems, make sure to identify common IDs needed to relate the data throughout...