4.1 Introduction
4.1.1 Organization of the chapter
4.2 Multimodularity and admission control
4.2.1 Admission policy: the time slot approach
4.3 The FIFO queue
4.3.1 Coupling of the service times with the customers
4.3.2 Multimodularity
4.4 (max,+) systems with one input: multimodularity
4.5 A dual policy: counting variable and waiting time
4.5.1 Waiting time
4.5.2 Coupling
4.5.3 Multimodularity
4.6 Optimal admission sequence
4.6.1 Dual bracket sequences
4.6.2 The time slot approach
4.6.3 The counting approach, the bounded case
4.6.4 The unbounded case