Filters is a very important concept in ConfiForms and is used in many places, basically it is the core of ConfiForms, a base which helps to connect ConfiForms forms and allows to query data stored within ConfiForms form:

• to limit number of records returned by "*views" macros (TableView, ListView, CardView, CalendarView and ValueView)
• to fire IFTTT actions based on conditions (ConfiForms IFTTT macro)
• to execute rules based on a condition (ConfiForms Field Definition Rules)
• to define custom CSS rules for your views, conditionally