Introduction to the concept of operations management, its importance in organizations, and its role in achieving business objectives.
Overview of Operations Management
(A concise, easy‑to‑read guide for students and professionals)
| Aspect | Description |
|---|---|
| Definition | The planning, organizing, directing, and controlling of resources and processes that produce goods or services. |
| Core Goal | Deliver the right product/service, at the right time, in the right quantity, with the right quality, and at the lowest feasible cost. |
| Scope | • Design of products & services • Process design & improvement • Capacity planning • Supply‑chain coordination • Inventory management • Quality control • Scheduling & workforce management • Technology & automation |
| Element | Main Activities | Typical Tools/Techniques |
|---|---|---|
| Product/Service Design | Define features, specifications, and performance standards. | QFD (Quality Function Deployment), Prototyping, CAD/CAM |
| Process Design | Map how work is performed; choose technology & layout. | Process Flow Diagrams, Value‑Stream Mapping, Bottleneck Analysis |
| Capacity Planning | Determine the amount of resources needed to meet demand. | Capacity Utilization Rate, Rough‑Cut Capacity Planning, Simulation |
| Supply‑Chain Management | Coordinate suppliers, manufacturers, distributors, and customers. | ERP, SCOR model, Vendor‑Managed Inventory (VMI) |
| Inventory Management | Balance holding costs vs. stock‑out risk. | EOQ, ABC analysis, Just‑In‑Time (JIT), Safety Stock calculations |
| Quality Management | Ensure products/services meet specifications and customer expectations. | Six Sigma, ISO 9001, Statistical Process Control (SPC), PDCA cycle |
| Scheduling & Workforce Management | Allocate labor and equipment to tasks over time. | Gantt charts, CPM/PERT, Master Production Schedule (MPS), Heuristic algorithms |
| Continuous Improvement | Ongoing efforts to enhance efficiency and effectiveness. | Kaizen, Lean, Theory of Constraints (TOC), Total Productive Maintenance (TPM) |
| Decision Level | Time Horizon | Focus | Example |
|---|---|---|---|
| Strategic | 3‑10 years | Long‑term positioning, facility location, technology adoption | Choosing a new plant site, investing in robotics |
| Tactical | 1‑3 years | Medium‑term resource allocation, capacity sizing, supplier contracts | Setting annual production volumes, negotiating long‑term contracts |
| Operational | Daily‑weekly | Day‑to‑day execution, scheduling, quality checks | Assigning workers to shifts, issuing work orders, monitoring line performance |
| Model | Purpose | Core Formula / Concept |
|---|---|---|
| Economic Order Quantity (EOQ) | Minimize total inventory cost (ordering + holding). | ( EOQ = \sqrt{\frac{2DS}{H}} ) (D = demand, S = ordering cost, H = holding cost) |
| Bullwhip Effect | Explain demand amplification upstream in a supply chain. | Variability ↑ as you move from retailer → manufacturer → supplier |
| Four‑Vs Framework | Classify processes based on Volume, Variety, Variation, Visibility. | Guides process design and technology choice |
| Little’s Law | Relate throughput, inventory, and cycle time. | ( L = |