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Project Scheduling. By: Ernawati Mustafa Kamal School of Housing, Building & Planning Universiti Sains Malaysia. Project Scheduling. A project is a collection of tasks that must be completed within certain time frame, with specific cost & quality. Project Scheduling Objectives.

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Project scheduling

Project Scheduling

By: Ernawati Mustafa Kamal

School of Housing, Building & Planning

Universiti Sains Malaysia


Project scheduling1
Project Scheduling

  • A project is a collection of tasks that must be completed within certain time frame, with specific cost & quality.


Project scheduling objectives
Project Scheduling Objectives

  • Estimating time of project by determining the earliest start and finish of each activity.

    • Finding the minimum cost schedule needed to complete the project by a certain date.

    • Investigating the results of possible delays in activity’s completion time.


Project scheduling objectives1
Project Scheduling Objectives

  • Progress control.

  • Smoothing out resource allocation over the duration of the project.


Project scheduling2
Project Scheduling

  • Tasks are called “activities.”

    - Estimated completion time (and sometimes costs) are associated with each activity.

    - Activity completion time is related to the amount of resources committed to it.

    - The degree of activity details depends on the application and how specific is the data.


Identifying the activities of a project
Identifying the Activities of a Project

  • To determine optimal schedules we need to

    • Identify all the project’s activities.

    • Determine the precedence relations among activities.


Identifying activities
Identifying Activities

  • Example:

    - Company A is a contractor & they need to construct a house.


Identifying activities1
Identifying Activities

  • Major task they need to perform & complete:

    - Sub-structure

    - Superstructure

    - Internal Finishes

    - Services and finishing

    - External Works


Identifying activities2
Identifying Activities

  • Company A needs to develop a precedence relations chart.

  • The chart gives a concise set of tasks and their immediate predecessors.


Identifying activities3
Identifying Activities

ActivityDescription

A Piling

Sub-Structure B Pile caps and ground beams

CFrame

D Upper Floors

E Roof

F Stairs and Ramps

Superstructure G External Walls

H Windows and External Doors

I Internal Walls and Partitions

J Internal Doors

Internal Finishes K Wall finishes

L Floor Finishes

M Ceiling Finishes


Identifying activities4
Identifying Activities

ActivityDescription

N Sanitary installation

Services & Finishing O Water installation

PElectrical installation

QRoad, Paths, Pavings & Surfacing

External Works R Landscaping and Irrigation Systems

S Fencing

T External drainage

U External services

From the activity description chart, we can determine immediate predecessors for each activity.


Scheduling tools techniques
Scheduling Tools & Techniques

  • Mathematical Analysis

    - calculating theoretical early and late start and finish dates for all projects activities without regard for any resource limitations.

    - The resulting dates are not schedule, but it indicate the time period within which activity should be schedule.


Mathematical analysis
Mathematical Analysis

  • Critical Path Method (CPM)

  • Graphical Evaluation and Review Techniques (GERT)

  • Program Evaluation and Review Technique (PERT)


Scheduling tools techniques1
Scheduling Tools & Techniques

  • Bar Charts

    - Milestone charts

    - Gantt charts

  • Horizontal time scale is used, often divided into weeks.

  • Various operations comprising the project are listed vertically down the left-hand side.


Bar charts
Bar Charts

  • The timing and duration of each operation indicated by a horizontal bar spanning the relevant period of weeks and shown on the same line as the operation it refers to.






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