A Trigger Point is a logical expression of Service Point Triggers. It is composed of groups and each group is formed of the logical atoms, the SPT. It can be of 2 types, based on what logical condition is applied inside the groups and between them:

1. Conjunctive Normal Format (CNF) - (A or B) and (C) and (D or E or F)
2. Disjunctive Normal Forma (DNF) - (A and B) or (C) or (D and E and F)

The Trigger Point is used to build complex message matching conditions.