project network
AON is most common then AOA
main idea for both networks is to determine the critical path
AON activity on node
aka PDM precedence diagramming method
tasks are linked by logical relationships (dependencies)
PDM has 4 types of dependencies (FF,FS,SF,SS)
AOA activity on arrow
aka ADM arrow diagramming method
GERT
graphical evaluation and review techniques
loop of design and test
Lead and lag
lead is the amount of time a successor activity can be advanced with respect to a predecessor activity. only in finish to start
lag is the waiting time between activities
RBS
resources breakdown structure.
breaks the work down by type of resources
Critical path
zero slack/float