Urgency of job -emergencies vs. non-emergencies Duration of service transaction -number of items to transact complexity of task -Payment of premium price First class vs. economy -Importance of customer frequent users/loyal customers vs. others
Urgency of job -emergencies vs. non-emergencies Duration of service transaction -number of items to transact complexity of task -Payment of premium price First class vs. economy -Importance of customer frequent users/loyal customers vs. others