In this paper, we survey results for the GI/GI/N+ GI queueing model. Our focus is on finding
situations in which simple performance measure approximations can be developed. To do …

The system of health care can be evaluated from four perspectives: macro, regional, center,
and department. In each case, reduction of patient delay depends on improving interfaces …

A base-stock inventory system for perishables with Markovian demand and general lead-
time and lifetime distributions is investigated. Using a queueing network model, we derive …

We introduce a simple approach for the analysis of the M/M/c queues with a single class of
customers and constant impatience time by finding simple Markov processes (see (2.1) and …

Queueing systems managed by ticket technology are widely used in service industries as
well as government offices. Upon arriving at a ticket queue, each customer is issued a …

The material presented in this book is a result of my work in the field of call center
management during the period 1999-2002. The focus is on the perfor mance analysis and …

In this paper for the M (n)/M (n)/s+ GI system, ie for as-server queueing system where the
calls in the queue may leave the system due to impatience, we present new asymptotic …

In this paper we define and formulate the concept of parking search routes (PSR) where a
driver visits a sequence of parking locations until the first vacant parking spot is found and in …

We consider a single server queueing system in which arrivals occur according to a
Markovian arrival process. The system is subject to disastrous failures at which times all …

This paper introduces an analytical method to approximate the fraction of jobs missing their
deadlines in a soft real-time system when the earliest-deadline-first (EDF) scheduling policy …