Design Constraints: Maximum Transition Time

Design Constraints are divided into several parts because it's really a wide and important topic.
Part 1a -> Basics of design constraints and details of "Maximum transition time" ( max_transition)
Part 1b -> Maximum Fanout constraint. ( max_fanout )
Part 1c -> Maximum ( and minimum ) capacitance ( mac capacitance and min capacitance)
Part 1d -> Cell degradation ( cell degradation )

.Basics of Design Constraints
.Classfication of types of "Design Constraints."
  *Design Rule Constraints
  *Optimization Constraints
.Different type of "Design Rule Constraints".
  *Maximum transition time
  *Maximum fanout
  *Maximum ( and minimum ) capacitance
  *Cell degradation

.Details of Maximum Transition Time --Design Rule Constraints