Pert and Gant Chart basic notes, Lecture notes of Computer Architecture and Organization

Download Pert and Gant Chart basic notes and more Lecture notes Computer Architecture and Organization in PDF only on Docsity!

PERT and Gantt

Source:http://www.nan.go.th/nanpoc/svg/ChartDirector/doc/cdphpdoc/images/gantt.png

Example Gantt Chart

(Later, but next, PERT charts...)

program

• noun

(from dictionary.com)

1. a plan of action to accomplish aspecified end: a school lunch

program

2. a plan or schedule of activities,procedures, etc., to be followed.3. a radio or television performance orproduction.4. a list of items, pieces, performers, etc.,in a musical, theatrical, or otherentertainment.5. an entertainment with reference to itspieces or numbers: a program ofAmerican and French music.

program

• noun

(cont.)

6. a planned, coordinated group ofactivities, procedures, etc., often for aspecific purpose, or a facility offering sucha series of activities: a drug rehabilitationprogram; a graduate program in linguistics.7. a prospectus or syllabus: a program ofcourses being offered.8. Computers.

a. a systematic plan for the automaticsolution of a problem by a computer.b. the precise sequence of instructionsenabling a computer to solve a problem.

PERT Charts II^

Acronym for:^

P

rogram

E

valuation and

R

eview

T

echnique

Let’s see an example^

Key:

^

this is an “activity-on-arrow” (AOA) method
^

Activity-on-node (AON) is an analogous idea

PERT Chart Example

Slack Time in PERT Charts

Some phases are not critical^

Example?

"Slack time”: (Also called float time)

how much a stage can be delayedbefore becoming critical

What is the slack in activity AE?

Let's pick an activity and figure out its slack

^

Let's try a couple of others

PERT Chart Example

More on Project Scheduling -

PERT Diagrams

There are various types of "boundarytimes"

Example:^

the

latest

a task could begin without

delaying the whole project

What is it for task AB?^

Let's try one more...

PERT Chart Example

PERT and Different

Kinds of Projects

What would a PERT diagram look like ofthe waterfall model?

What would a PERT diagram look like ofthe UP lifecycle model?

What kind of project would a PERTdiagram be most useful for?

When to use PERT Charts

Wikipedia:

“PERT is intended for very large-scale,one-time, complex, non-routineprojects.”

Some More Questions

What is the soonesttask FJ could begin?

What is the latest GJcould begin withoutdelaying the project?

How soon could FJpossibly finish?

What is the float timefor task BI?

Questions III

In project planning, what characterizesa critical path?

a. It represents the shortest amount of time needed to complete the project

b. It represents the longest amount of time needed to complete the project

c. It represents any sequence of tasks that must be completed for the projectto be completed

d. There is exactly one critical path in any project