time oriented technique

event oriented technique

activity oriented technique

target oriented technique

PERT deals with events and CPM with activities

critical path is determined in PERT only

costs are considered on CPM only and not in PERT

guessed times are used in PERT and evaluated times in CPM

inventory problems

traffic congestion studies

job-shop scheduling

all of the above

complete details′of items in, waiting line are known

arrival and waiting times are known and can be grouped to form a waiting line model

all variables and constants are known and form a linear equation

the laws governing arrivals, service times, and the order in which the arriving units are taken into source are known

sales

inspection time

waiting time

production time