Download - Production planning and control
GROUP MEMBERS
FAHEEM ULLAH 12-PWMEC-3333
HASAN ALI 12-PWMEC-3393
IRFAN ULLAH 12-PWMEC-33
M.ARSALAN 12-PWMEC-3401
PRODUCTION PLANNING
Production Plan
Definition
Horizon levels
Objectives
Requirements
Functions
Forecast Planning
Product Design
Routing (Process Planning)
Material Requirements Planning
Scheduling
Loading
Production Control
Definition
Forms
Functions
Dispatching
Inspection
Evaluation
Control Systems
Specific Production Plan
Production Planning And Control
Production Plan• Production planning involves management decisions on the resources that the firm will require for its
manufacturing operations and the selection of these resources to produce the desired goods at the appropriate
time and at the least possible cost
• Production planning is dynamic in nature and always remains in fluid state as plans may need to be change.
Short Term
(operational)
Medium Term
(Aggregate Planning)
Long Term
(Capacity Planning)
Manufacturingsystem
Objectives
Constraints-Budget, Space
ResourcesMen
Equipment
DemandForecast
Planning Process
Horizon Levels
Objectives
MinimizeMaximiz
e
inventoryCost
Efficienc
y of
Plant
Profits
Custom
er
Service
Requirements
Should Be based On
Accurate Data
simple and straight forward
Flexibility
Reporting system
Functions
Estimating and Forecast Planning
Process of predicting a future event based on historical data
Forecast
Horizon
Levels/ timeTechniques
Qualitative
MethodsQuantitative
Methods
Market
Survey
Executive
Judgmen
t
Short
<3 M
Job/Workers
Assignment
Medium Range
3-24 M
Sales/PPLong Range
>24 M
New PP
M=Month
Quantitativ
e methods
Qualitative
Methods
Quality
Forecast
Demand
Pattern
forecast
Forecasting During Life Cycle
Market Survey Moving Averages
Executive Judgment Exponential
Introduction Growth Maturity Decline
Time
Qualitative Models Quantitative Models
Product Development Process ( Includes Product Design )
•
Sco
pe
of
Pro
du
ct D
evel
op
men
t Te
am
Sco
pe
of
Des
ign
Tea
m
Process Planning• Process planning determines how a product is to be manufactured.
• Process planning is an interface between design and manufacturing.
Product Design
Manufacturing Process
Pro
cess
Pla
nn
ing
• Production Types • Product Life Cycle
TimeD
eman
d
Introduction Growth Maturity Decline
Var
iety
Volume
Project
Job
Batch
Mass
Continuous
Hig
hLo
w
HighLow
Material Requirements PlanningMaterials requirements planning (MRP) is a computerized inventory planning and control system for determining when (no earlier and no later) and how many of each of the parts, components, and materials should be ordered or produced.
The basic idea is to get the right materials to the right place at the right time.
Inputs
Material Requirements Planning
Master Production
Schedule
Materials Requirement
PlanningBill Of Materials
Reports
Inventory Status
Purchasing Data
Loading & Scheduling :
Loading is the assignment of Work to the workers and equipment.
Scheduling involves fixing the priorities for different jobs and deciding the starting and finishing time (or
date) of each job. Also called as time based loading.
Loading & Scheduling
Charts
Master
Production
Schedule
Operation
Schedule
Gantt Chart
Production Control
Production control guides and directs flow of production to ensure that all which occurs is in accordance with
the rules established and instructions issued.
Production Control
Forms of PC Functions of
PC
Quality
controlDispatching
Evaluation
Inspection
Cost
control
Stock
control
Control Systems
• Open Loop control System • Closed Loop control System
Transformation
Output
Simple but no Feed back Channel
Transformation Output
Resources &Objective
Products &
Service
Comparison
MeasuresCorrective
action
Have Feed Back & Control