PRODUCTION PLANNING AND CONTROL
Presented by
Golam Fahim
Lecturer, MPE Department
PRODUCTION PLANNING
The planning of Industrial operations involves, what work shall be done, How the work shall be
done and when the work shall be done.
Objectives:
1. To determine the requirement of resources.
2. To make efforts to achieve production targets in time.
3. To arrange various input at right time and in right quantity.
4.To arrange production schedules according to market needs.
5. To achieve coordination among various departments relating to production.
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PRODUCTION CONTROL
Production Control refers to ensuring that all which occurs in accordance with the rules
established and instructions issued.
Objectives:
1. To reduce waiting time.
2. To minimize the wastage.
3. To regulate inventory management.
4.To introduce a proper system of quality control.
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OBJECTIVES OF PRODUCTION
PLANNING AND CONTROL
1.Optimize resources and the scheduling of resources to meet production demand
2.Ensure an efficient schedule
3.Have resources ready when needed
4.Keep inventory at optimal levels
5.Increase productivity of internal resources (human, work centers, machines, tooling, etc.)
6.Improve customer satisfaction
7.Ensure the right person gets assigned to specific processes
8.Coordinate with other departments (sales, customer service, purchasing, etc.)
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
1. Materials Function:
Raw materials,
Finished parts and
Bought out components should be made available in required quantities and at required time
2. Machines and Equipment:
include the analysis of facilities and making their availability with minimum down time because
of breakdowns.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
3. Methods:
analysis of alternatives and selection of the best method with due consideration to constraints
imposed.
4. Process Planning (Routing):
(a) Fixation of path of travel giving due consideration to layout.
(b) Breaking of operations to define each operation in detail.
(c) Deciding the set up time and process time for each operation.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
5. Estimating:
After the process sheet for operations is made available, operation times are then estimated.
The function is then carried out using analysis on areas of operations such as routing, raw
materials and various other areas.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
6. Loading and Scheduling:
(a) Loading the machines as per their capability and capacity.
(b) Determining the start and completion times for each operation.
(c) To Co-ordinate with sales department regarding delivery schedules.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
7. Dispatching:
(a) To assign definite work to definite machines, work centres and men.
(b) To issue required materials from stores.
(c) To issue jigs, fixtures and make them available at correct point of use.
(d) Release necessary work orders, time tickets etc. to authorise timely start of operations.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
8. Expediting
1. Identification of bottlenecks and delays and interruptions because of which the production
schedule may be disrupted.
2. To devise action plans (remedies) for correct the errors.
3 To see that production rate is in line with schedule.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
9. Inspection:
This forms the basis for knowing the limitations with respects to methods, processes etc.
which is very much useful for evaluation phase.
10. Evaluation:
A thorough analysis of all the factors influencing the production planning and control helps to
identify the weak spots and the corrective action with respect to preplanning and planning will
be effected by a feed back.
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FUNCTIONS OF PRODUCTION
PLANNING AND CONTROL
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OBJECTIVES OF PRODUCTION
PLANNING AND CONTROL
1. Optimize resources and the scheduling of resources to meet production demand
2. Ensure an efficient schedule
3. Have resources ready when needed
4. Keep inventory at optimal levels
5. Increase productivity of internal resources (human, work centers, machines, tooling, etc.)
6. Improve customer satisfaction
7. Ensure the right person gets assigned to specific processes
8. Coordinate with other departments (sales, customer service, purchasing, etc.)
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PRODUCTION PLANNING AND
CONTROL
PRODUCTION
P L A N N I N G VS
SCHEDULING
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Priority Rules for Sequencing
CR
STR
1 FCFS
7
4
Critical Ratio
First-come, first-served
Slack time remaining
LCFS
RO
2 SPT
5
8
Shortest processing time
Last-come, first-served
Random order
3 DDATE
Earliest due date
CUSTPR
6 LPT
9
Longest processing time
Highest customer
priority
Production Planning andControl
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Objectives of
Sequencing
Meeting due dates of
customers
1
Minimizing work-inprocess inventory
Minimizing the flow time
(the time a job spends in
the process)
3
Minimizing idle time of
machines or workers
2
4
Production Planning andControl
16
Job Sequencing
First-Come First-Served
Jobs
(in order of arrival)
A
B
C
D
FCFS Schedule
Jobs
(in order of arrival)
A
B
C
D
Processing Time
(days)
4
7
3
1
Processing Time
(days)
4
7
3
1
Due Date
(days hence)
5
10
6
4
Due Date
(days hence)
5
10
6
4
• Orders submitted at
beginning of week
• n-jobs on onemachine
Flow Time
(days)
4
11
14
15
Production Planning andControl
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