Unit 1: Operations fundamentals
Production & Operations Management notes · PTU syllabus (MBA 205-18)
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Unit summary
Operations management turns inputs into the goods and services a business sells. This unit covers the concept of operations management, the transformation process model, classification of operations, the contributions of Ford, Deming, Crosby and Taguchi, facility location factors and analysis techniques, the product design and development process, and process selection.
After this unit you can
- Explain the concept of operations management and the transformation process
- Classify operations and explain the contributions of key thinkers
- Analyse facility location using factors and quantitative techniques
- Explain product design and development and process selection
PTU syllabus topics
- Operations management concept
- transformation process model
- classification of operations
- contributions of Ford
- Deming
- Crosby
- Taguchi
- facility location factors and analysis techniques
- product design and development process
- process selection (project/job/batch/mass/process types)
- 1Inputs
Materials, labour, capital, information
- 2Transformation
Manufacturing or service process
- 3Outputs
Goods and services
- 4Feedback and control
Quality, cost, time
Topic 1
Concept and the transformation process model
Operations management is the design, operation and improvement of the systems that create and deliver a firm's products and services.
- 1Inputs
Materials, labour, machines, capital, information
- 2Transformation
Manufacturing or service process
- 3Outputs
Goods and services
- 4Feedback and control
Quality, cost and delivery checks
Functions: product design, process selection, facility location and layout, capacity planning, production planning and control, inventory management, quality management and maintenance. Objectives: right quality, right quantity, right time and right cost.
Topic 2
Classification of operations
Output
Tangible, can be stored
Intangible, perishable
Customer contact
Low
High, often present in the process
Quality measurement
Easy against specifications
Harder, based on perception
Location
Near materials or labour
Near customers
Examples
Cars, cement, medicines
Banks, hospitals, airlines
- By volume and variety: project, job, batch, mass and continuous operations.
- By customer order: make-to-stock, make-to-order, assemble-to-order, engineer-to-order.
- Slack's four Vs: volume, variety, variation in demand and visibility to customers.
Topic 3
Contributions of Ford, Deming, Crosby and Taguchi
| Contributor | Key contribution |
|---|---|
| Henry Ford | Moving assembly line (1913), standardised parts, mass production, the "$5 day" to reduce labour turnover |
| W. Edwards Deming | Statistical quality control, PDCA cycle, 14 points for management; credited with Japan's post-war quality revolution |
| Philip Crosby | "Quality is free", zero defects, cost of quality, conformance to requirements, 14 steps for quality improvement |
| Genichi Taguchi | Robust design, quality loss function — any deviation from the target value causes loss to society, design of experiments |
- Also: F.W. Taylor (scientific management, time study), the Gilbreths (motion study), Juran (quality trilogy), Taiichi Ohno (Toyota Production System).
Topic 4
Facility location: factors and analysis techniques
Location decisions are long-term and costly to reverse.
Market proximity
Closeness to customers
Raw materials
Closeness to suppliers
Labour
Availability and cost of skilled workers
Infrastructure
Transport, power, water, communication
Government policy
Incentives, SEZs, taxes
Community and climate
Attitude, living conditions
Location analysis techniques: factor rating method (score and weight each factor), break-even (locational cost-volume) analysis, centre of gravity method (minimises distribution cost) and the transportation model.
Factor rating
Total score = Σ (weight × score) for each site
Locational break-even
Total cost = fixed cost + variable cost × volume; choose the lowest-cost site at expected volume
Centre of gravity
X = Σ(x × volume) / Σ volume; Y = Σ(y × volume) / Σ volume
Example
Sites A and B: fixed costs ₹30 lakh and ₹50 lakh, variable cost ₹600 and ₹400 per unit. Break-even volume = (50 − 30) lakh / (600 − 400) = 10,000 units — above 10,000 units, site B is cheaper.
Topic 5
Product design and development process
Good product design balances customer needs, function, cost, manufacturability and reliability.
- 1
Idea generation
- 2
Feasibility study
- 3
Preliminary design
- 4
Final design
Detailed specifications
- 5
Prototype and testing
- 6
Production and market launch
Concepts: standardisation (fewer variants, lower cost), modular design (interchangeable modules), design for manufacture and concurrent engineering (design and production teams work together).
Topic 6
Process selection
Project
One unique product, large and complex
Bridge, ship, building
Job (job shop)
Very low volume, high variety, made to order
Tailoring, custom furniture
Batch
Moderate volume in lots
Bakery, medicines, garments
Mass (line/repetitive)
High volume, standard products
Cars, mobile phones
Process (continuous)
Very high volume, non-stop flow
Oil refinery, cement, chemicals
Exam tip
Process choice depends on volume and variety: as volume rises and variety falls, move from project and job towards mass and continuous production (the product-process matrix).
Key terms
- Transformation process
- Conversion of inputs into goods and services
- Make-to-order
- Production begins only after a customer order
- Quality loss function
- Taguchi's measure of loss from deviation from target
- Factor rating method
- Weighted scoring to compare locations
- Concurrent engineering
- Design and production teams working in parallel
Quick revision
- OM: inputs → transformation → outputs, with feedback.
- Classification: manufacturing vs service; volume–variety; order types; four Vs.
- Ford (assembly line), Deming (PDCA, 14 points), Crosby (zero defects), Taguchi (robust design).
- Location factors; factor rating, break-even, centre of gravity.
- Product design process; project, job, batch, mass, continuous.
Important exam questions
Practice questions written to the PTU exam pattern for this unit's syllabus: short answers (Section A style) and long answers (Sections B and C style).
Short-answer questions
- Q1.Define operations management.
- Q2.Distinguish manufacturing and service operations.
- Q3.What is Taguchi's quality loss function?
- Q4.State four factors affecting facility location.
- Q5.What is concurrent engineering?
- Q6.Distinguish job and batch production.
Long-answer questions
- Q1.Explain the transformation process model and the classification of operations.
- Q2.Discuss the contributions of Ford, Deming, Crosby and Taguchi to operations management.
- Q3.Explain the factors and techniques of facility location analysis.
- Q4.Explain the product design process and the types of process selection.
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