mp (lect 06) -- dr. imam baihaqi

8/10/2019 MP (Lect 06) -- Dr. Imam Baihaqi

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Where We Are NowWhere We Are Now


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Developing the Project PlanDeveloping the Project Plan

The Project NetworkA flow chart that graphically depicts the sequence

interdependencies and start and finish ti!es of the project

jo" plan of activities that is the critical paththrough the

network#

Provides the basis for scheduling labor and equipment.

Enhances communication among project participants.

Provides an estimate of the projects duration.

Provides a basis for budgeting cash ow.

Identies activities that are critical.ighlights activities that are !critical" and can not be

dela#ed.

elp managers get and sta# on plan.


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W$%&Work Packages to Network

FIGURE 6.1


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*onstructing a Project Network*onstructing a Project Network

Ter!inologyActivity:an ele!ent of the

project that requires ti!e#

Me!e Activity:an activity thathas two or !ore preceding

activities on which it depends#

P""##e# (Conc$ent) Activitie%:

Activities that can occurindependently and if desired

not at the sa!e ti!e#

A

C

&'


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*onstructing a Project Network 'cont(d)*onstructing a Project Network 'cont(d)

Ter!inologyP"t:a sequence of connected dependent activities#

Citic"# "t:the longest path through the activity

network that allows for the co!pletion of all project+

related activities, the shortest e-pected ti!e in which

the entire project can "e co!pleted# Delays on the

critical path will delay co!pletion of the entire project#

A ' &

(A%%$*e% t"t *ini*$* o+ A , ' - *ini*$* o+ C in #en!t o+ ti*e% to co*#ete "ctivitie%.)

C


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*onstructing a Project Network 'cont(d)*onstructing a Project Network 'cont(d)

Ter!inologyEvent:a point in ti!e when an activity is started

or co!pleted# .t does not consu!e ti!e#

'$%t Activity:an activity that has !ore than one

activity i!!ediately following it '!ore than onedependency arrow flowing fro! it)#

Two Approaches

Activity+on+Node 'A/N)

$ses a node to depict an activit#.

Activity+on+Arrow 'A/A)

$ses an arrow to depict an activit#.

'

&

A C


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$asic 0ules to 1ollow in Developing$asic 0ules to 1ollow in Developing

Project NetworksProject Networks

2# Networks typically flow fro! left to right#

3# An activity cannot "egin until all preceding

connected activities are co!plete#

4# Arrows indicate precedence and flow

and can cross over each other#

5# 6ach activity !ust have a unique identify nu!"er

that is greater than any of its predecessor activities#

7# 8ooping is not allowed#

9# *onditional state!ents are not allowed#

:# ;se co!!on start and stop nodes#


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Activity+on+Node 1unda!entalsActivity+on+Node 1unda!entals

FIGURE 6.


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Activity+on+Node 1unda!entals 'cont(d)Activity+on+Node 1unda!entals 'cont(d)

FIGURE 6. (contd)


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Network .nfor!ationNetwork .nfor!ation

TA'/E 6.1


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Network .nfor!ationNetwork .nfor!ation

TA'/E 6.


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Activity+on+Node NetworkActivity+on+Node Network

FIGURE 6.2


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Activity+on+Node Network 1orward PassActivity+on+Node Network 1orward Pass

FIGURE 6.6


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1orward Pass *o!putation1orward Pass *o!putation

Add activity ti!es along each path in thenetwork '6% @ Duration 61)#

*arry the early finish '61) to the ne-t activity

where it "eco!es its early start '6%) unless The ne-t succeeding activity is a !erge activity

in which case the largest 61 of all preceding

activities is selected#


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Activity+on+Node Network $ackward PassActivity+on+Node Network $ackward Pass

FIGURE 6.3


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$ackward Pass *o!putation$ackward Pass *o!putation

%u"tract activity ti!es along each path in thenetwork '81 + Duration 8%)#

*arry the late start '8%) to the ne-t activity

where it "eco!es its late finish '81) unless

The ne-t succeeding activity is a "urst activity in

which case the s!allest 81 of all preceding

activities is selected#


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Activity+on+Node Network with %lackActivity+on+Node Network with %lack

FIGURE 6.4


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1ree %lack 6-a!ple1ree %lack 6-a!ple

FIGURE 6.5


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Practical *onsiderationsPractical *onsiderations

Network 8ogic 6rrorsActivity Nu!"ering

;se of *o!puters to

Develop Networks

*alendar Dates

Bultiple %tarts and

Bultiple Projects


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.llogical 8oop.llogical 8oop

FIGURE 6.1


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Air *ontrol Project=Cantt *hartAir *ontrol Project=Cantt *hart

FIGURE 6.1


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6-tended Network Techniques6-tended Network Techniques

to *o!e *lose to 0ealityto *o!e *lose to 0eality

8addering

Activities are "roken into seg!ents so the following

activity can "egin sooner and not delay the work#

8ags

The !ini!u! a!ount of ti!e a dependent activity !ust

"e delayed to "egin or end#

%ength# activities are bro&en down to reduce the dela#

in the start of successor activities.%ags can be used to constrain nish'to'start( start'to'

start( nish'to'nish( start'to'nish( or combinationrelationships.


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6-a!ple of 8addering ;sing6-a!ple of 8addering ;sing

1inish+to+%tart 0elationship1inish+to+%tart 0elationship

FIGURE 6.10


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;se of 8ags;se of 8ags

FIGURE 6.1

FIGURE 6.12

Fini%7to7St"t Re#"tion%i

St"t7to7St"t Re#"tion%i


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;se of 8ags *ont(d;se of 8ags *ont(d

FIGURE 6.16

U%e o+ /"!% to Red$ce &et"i#


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New Product Develop!entNew Product Develop!ent

ProcessProcess

FIGURE 6.13


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;se of 8ags 'cont(d);se of 8ags 'cont(d)

FIGURE 6.14

FIGURE 6.15

FIGURE 6.

Fini%7to7Fini%

Re#"tion%i

St"t7to7Fini%

Re#"tion%i

Co*8in"tion

Re#"tion%i


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Network ;sing 8agsNetwork ;sing 8ags

FIGURE 6.1


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>a!!ock Activities>a!!ock Activities

>a!!ock ActivityAn activity that spans over a seg!ent of a project#

Duration of ha!!ock activities is deter!ined

after the network plan is drawn#

>a!!ock activities are used to aggregate

sections of the project to facilitate getting

the right a!ount of detail for specific sections

of a project#


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>a!!ock Activity 6-a!ple>a!!ock Activity 6-a!ple

FIGURE 6.


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Activity+on+Arrow Network $uilding $locksActivity+on+Arrow Network $uilding $locks

FIGURE A6.1


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Activity+on+Arrow Network 1unda!entalsActivity+on+Arrow Network 1unda!entals

FIGURE A6.

mp (lect 06) -- dr. imam baihaqi

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