Production & Operations Management (MBA 206)
A visualization dashboard compiled from top Indian academic texts (Martand Telsang, P. Gopalakrishnan, N.G. Nair, S.N. Chary) covering Units 1 to 4 with interactive solvers, active-recall flashcards, and a complete exam assessment simulator.
Systems View: The Transformation System Model
Every business operates on a transformation model that converts system inputs into value-added outputs via an active monitoring loop.
System Inputs
Raw Materials, Workers, Automation Capital, Machinery, Industrial Utilities, Blueprints
Transformation
Physical fabrication, Chemical formulation, Mechanical assembly, Service logistics
Valued Outputs
Finished commodities, Packaged services, Process efficiency, Time & Place utility
Feedback Loop & Control Node
Compares final output quality, cost, and schedule metrics back to pre-set industrial criteria, initiating adjustments at the Input/Process stage.
Introduction to Production Management
Master the distinction between Production and Operations Management. Study Manufacturing classifications (Job, Batch, Mass, Continuous), Plant Location models, and Plant Layout theory (Process, Product, Fixed, Cellular, FMS, CIM).
Operations Decisions: PPC & Scheduling
Analyze PPC stages (Planning, Action, Control). Dive deep into production routing sheets, loading, scheduling heuristics (FCFS, SPT, EDD), job assignment matrices, and Johnson's sequencing algorithm.
Logistics & Supply Chain Management
Study SCM layers, inbound/outbound logistics, international logistics mechanics, and reverse logistics (take-back, remanufacture). Learn about WMS layouts, MRP inputs (MPS, BOM), modular ERP configurations, and JIT philosophy.
Work Study, Material Handling & Inventory
Master Method Study (SREDIM procedure), ASME process chart symbols, stopwatch Time Study (Standard Time calculations), and Work Sampling. Learn about Material Handling principles and analytical Inventory models (EOQ, ROP, ABC, VED).
Introduction to Production Management
Exhaustive theoretical frameworks, definitions, plant layouts, location techniques, and process planning structures.
1.1 Fundamentals of Production & Production Management
In academic manufacturing management, Production is defined as the organized process of converting raw materials (inputs) into value-added commodities or services (outputs) that satisfy human utility requirements. According to N.G. Nair, production is the creation of value-bearing goods and services.
Production Management is the branch of corporate management responsible for planning, organizing, directing, and controlling the physical manufacturing operations of an organization.
"Production Management deals with decision-making related to production processes so that the resulting goods or services are produced according to specifications, in the amount and by the schedule demanded and at the minimum cost." — E.S. Buffa
"Production management is the function of management responsible for the design and control of the production system — this includes materials management, quality control, scheduling, and improving system efficiency over time." — Martand Telsang
Scope & Core Areas of Production Management:
As mapped out by Martand Telsang, production management is comprised of several strategic pillars:
Translating market demands into physical parameters, dimension standards, tolerances, and component recipes before releasing the product to the factory floor.
Selecting an optimal geographic point to construct facilities, minimizing total supply chain logistics costs while maximizing regulatory incentives.
Configuring the internal physical workspace (machines, storage bays, workstations) to enable a smooth path of materials with minimal backtrack congestion.
Setting up production schedules, sequencing jobs, loading machine queues, launching instructions (dispatching), and monitoring system output (expediting).
1.2 Operations Management & The "5 Rights"
Operations Management (OM) is a broader management discipline than Production Management. While Production Management concentrates on the manufacturing of physical products, Operations Management covers the design, execution, and control of processes in **both manufacturing and service environments** (such as banking, healthcare, hospitality, and retail).
Comparison Matrix: PM vs. OM
| Parameter | Production Management | Operations Management |
|---|---|---|
| Scope | Confined strictly to physical manufacturing facilities (factories). | Covers factories, logistics networks, service sectors, and software operations. |
| Output Type | Tangible products (biscuit boxes, cars, engines, electronics). | Tangible products and Intangible services (hospital care, cloud apps). |
| Customer Contact | Extremely low or zero direct customer interaction on the shop floor. | High direct interaction (e.g., hotel check-in, airline services). |
The 5 Rights of Operations Management:
To achieve operational excellence, a manager must satisfy five core targets:
Conforming exactly to predefined product standards.
Matching demand volume to avoid shortages or excess stocks.
Minimizing production and operational overheads.
Delivering on schedule to support supply chain steps.
Ensuring geographic availability at market nodes.
1.3 Classification of Production Systems
Production systems are classified based on the volume of output, product standardization, and frequency of manufacturing runs.
Under job production, each product is made individually, one at a time, tailored exactly to specific customer requirements. Volume is extremely low, but variety and machine flexibility are high. It relies on highly skilled, multi-purpose craftsmen.
Real-world Example: High-capacity transport bridges, customized aerospace satellites, custom tailoring.
Goods are processed through the machinery in defined groups or "batches." Once a batch of one item is completed, the machines are shut down, cleaned, and recalibrated (setup) to run a batch of a different product.
Real-world Example: Pharmaceutical batch manufacturing (e.g., running 10,000 tablets of Paracetamol before switching to Ibuprofen), printing presses, paint manufacturing.
Extremely high-volume runs of fully standardized products made on continuous, automated assembly lines. It utilizes specialized, single-purpose machinery (with low setup requirements) and semi-skilled workers repeating narrow tasks.
Real-world Example: Maruti Suzuki car assembly lines, smartphone production lines, soft drink bottling units.
This system runs uninterrupted 24 hours a day, 7 days a week, because shutting down the line would result in massive setup costs or chemical blockages. It is highly automated, capital-intensive, and used for uniform fluids, gases, or powders.
Real-world Example: Petrochemical oil refineries (e.g., Jamnagar Refinery), steel casting plants, cement manufacturing.
1.4 Plant Location & Layout Theories
Geographic Plant Location Analysis
Plant location involves selecting the optimal geographic site to construct a manufacturing facility. It is classified as a long-term strategic decision because relocation is highly expensive and complex.
Primary geographic location parameters include closeness to bulky raw materials (to minimize inbound freight), proximity to final consumer markets (for fragile or perishable items), local labor pools, energy grid reliability, and government SEZ subsidies.
Plant Layout Configurations
Plant layout is the physical arrangement of industrial assets (workstations, machines, tooling, storage bays) within the factory building.
Machines are arranged sequentially in the exact order operations are performed on the product. Ideal for mass production. High speed, low inventory, but highly vulnerable to line stoppages if a single machine breaks down.
Similar machine functions are grouped together in departments (e.g., grouping all drilling machines). Highly flexible for high-mix, low-volume jobs, but incurs high material handling and inventory storage requirements.
The product remains stationary due to its massive weight or size, and workers, materials, and heavy cranes are brought directly to it. Example: Shipbuilding docks or construction sites.
Groups machines into independent cells that process families of parts. Flexible Manufacturing Systems (FMS) use computer-controlled machinery to easily switch product schedules on the fly.
PPC: Decisions, Routing, and Scheduling
Routing sheets, forward and backward scheduling, priority sequencing mechanics, and Johnson's algorithm extensions.
2.1 The Concept & Stages of PPC
Production Planning and Control (PPC) is the steering wheel of the manufacturing system. Planning decides what, how, and when to produce, while Control monitors physical operations to correct deviations from the plan.
Routing: Defining the path of raw materials through the machines.
Scheduling: Allocating precise start and finish times.
Loading: Assigning work volumes to specific machines to balance capacities.
Dispatching: Issuing work orders, material requisitions, blueprints, and routing sheets onto the floor to initiate physical operations.
Expediting (Follow-Up): Spotting delays and routing bottlenecks.
Inspection: Checking quality specifications.
Evaluation: Re-routing or scheduling based on operational feedback.
2.2 Scheduling Methodologies & Heuristics
Scheduling allocates manufacturing capacity over time. It can be performed using two main methodologies:
- Forward Scheduling: Starts the schedule from today (or as soon as materials are ready), scheduling tasks forward to determine the earliest possible completion date. Useful for fast-turnaround jobs.
- Backward Scheduling: Starts from the customer's required delivery date and works backwards to determine when each step must begin. Minimizes work-in-progress (WIP) storage because tasks are started only when needed, but leaves zero buffer for machine breakdowns.
Sequencing Heuristics (Priority Rules):
When multiple jobs are waiting in a queue at a workstation, sequencing rules determine processing priority:
Simple and fair to customers, but does not optimize system metrics or cycle times.
Minimizes average flow times and reduces the length of the queue, but can cause long jobs to wait indefinitely.
Minimizes maximum lateness, helping to meet customer delivery contract deadlines.
Jobs with CR < 1 are behind schedule and are automatically prioritized.
Logistics and Supply Chain Management
Cross-border freight systems, reverse logistics, warehouse management software, and modular ERP/MRP operations.
3.1 Concepts of SCM & Logistics Operations
A Supply Chain is the entire end-to-end network of suppliers, manufacturers, distributors, and retailers involved in transforming raw materials into finished products delivered to the final customer.
Logistics is the specific subset of SCM focused on planning, executing, and controlling the efficient, cost-effective physical movement and storage of goods, services, and information.
"Logistics is the process of planning, implementing, and controlling the efficient, effective flow and storage of goods, services, and related information from point of origin to point of consumption for the purpose of conforming to customer requirements."
SCM Logistics Segments:
Managing raw materials and parts coming into the factory. Includes purchasing, supplier relations, transport, and raw material warehousing.
Handling materials inside the facility. Includes the physical movement of semi-finished parts (WIP) between workstations using conveyor belts, AGVs, or overhead cranes.
Storing, packing, and shipping finished goods out of the factory to wholesalers, retailers, or direct consumers.
3.2 Material Replenishment Systems: MRP, ERP, and JIT
Replenishment planning systems ensure raw materials are available for production without overstocking the warehouse.
A computer-based inventory control system that calculates exactly what materials are needed, in what quantities, and by which dates to fulfill the production schedule.
2. Bill of Materials (BOM): The product recipe tree.
3. Inventory Records: Current stock levels.
An enterprise-wide software system that integrates all business departments on a single platform with a shared database, connecting production, finance, HR, and sales in real time.
Real-world Example: Tata Motors using SAP ERP to automatically place parts orders with suppliers the moment a car dealer books an order in Delhi.
Pioneered by Toyota, JIT is a production philosophy that aims to eliminate waste (Muda) by manufacturing and delivering parts **exactly when needed — not before, and not after.**
Real-world Example: Maruti Suzuki Manesar, where suppliers are located in an adjacent supplier park and deliver components directly to the assembly line multiple times a day.
Work Study, Material Handling & Inventory Management
SREDIM procedures, stopwatch studies, material handling equipment, and economic inventory models (EOQ/ABC/VED).
4.1 Basics of Work Study, Method Study, & ASME Symbols
Pioneered by Frederick Winslow Taylor and Frank & Lillian Gilbreth, Work Study is a systematic examination of work methods to optimize productivity and establish time standards. It has two main branches:
- Method Study (HOW): Systematic recording and critical analysis of existing ways of doing work (using the 6-step SREDIM procedure) to design easier, more efficient methods.
- Work Measurement / Time Study (HOW LONG): Setting standard times for a qualified operator working at a standard pace.
ASME Process Flow Chart symbols:
Value-adding fabrication or assembly.
Moving materials between areas.
Temporary waiting or queue lines.
Controlled, planned staging.
Checking dimensions or specs.
4.2 Material Handling: Principles & Equipment
Material Handling involves the short-distance movement, packaging, control, and storage of materials within a facility. It is a necessary but non-value-adding activity — meaning it does not alter the product, but incurs cost and risk of damage.
Core Material Handling Principles:
Move materials in the largest practical unit load (e.g., using standardized wood pallets or large bins) rather than individual items. Standard size in India: 1200mm × 1000mm.
Utilize all three dimensions of space — floor space AND vertical height. Racking systems allow vertical stacking, doubling or tripling storage capacity.
Use gravity wherever possible to move materials. Gravity chutes and roller conveyors reduce energy costs.
Standardize handling equipment, containers, and methods to maximize compatibility and reduce operational complexity.
4.3 Inventory Analytics: ABC and VED Models
Inventory represents significant capital sitting on shelves. Management must classify items to optimize resource allocation and control effort:
Classifies inventory by multiplying annual demand by unit cost (D × C):
- A Items (Tight Control): Top 10-15% of items accounting for 70-80% of total monetary value. Reviewed daily.
- B Items (Moderate Control): 30-40% of items accounting for 15-25% of total value. Reviewed weekly.
- C Items (Loose Control): Remaining 45-60% of items accounting for only 5-10% of total value. Ordered in bulk.
Primarily used in maintenance, repair, and operations (MRO) spare parts planning:
- V - Vital Spares: Production halts instantly if missing. Must maintain safety stock regardless of cost.
- E - Essential Spares: Severe disruption to operations, but workarounds are possible. Medium safety stocks needed.
- D - Desirable Spares: Minor inconvenience. Can wait for normal delivery timelines.
Quantitative Solvers
Practice numerical calculation models from across the syllabus with step-by-step solutions.
Stopwatch Time Study / Standard Time Calculator
Economic Order Quantity (EOQ) & Reorder Point (ROP) Optimizer
Johnson's 2-Machine Sequencing Optimizer
Enter processing times in hours for each job below. The algorithm dynamically calculates the optimal sequence and Makespan.
| Job ID | Machine 1 (hrs) | Machine 2 (hrs) |
|---|
Hungarian 3x3 Minimization Assignment Solver
Enter processing costs/hours for Workers A, B, C against tasks X, Y, Z. The solver will calculate the absolute minimum assignment.
Core Concept Flashcards
Click cards to reveal core definitions and key formulas for exam recall.
What is the core definition of Production Management?
It involves decision-making relating to production processes so that goods or services are produced according to specifications, at minimal cost and on demand schedules (E.S. Buffa).
Interactive Mock Exam
Attempt this mock test to evaluate your understanding of the core concepts across Units 1 to 4.