The information you extract from your data is only as good as the quality of that data. Picklists limit the values a user can enter for a particular field to prevent invalid data entry.
Formula fields can be used to calculate values from existing data, removing the possibility of user error. Formula fields can also be used to display fields from related objects and to integrate information from other sources.
Validation rules, when active, guarantee that data entered adheres to specified guidelines.
These three options give you the ability to quickly and productively maintain data integrity for all users. In the next chapter, you learn about one of the greatest productivity features on the Force Platform—the ability to define and use ...