Lean Manufacturing A-Z: Operations Management & Six Sigma

Define value from the customer's perspective and map processes. Apply the Kano model, learn the eight wastes, and classify tasks as value adding, non-value adding, or necessary non-value adding.

Apply the Kano model to categorize features into delight, performance, and basic attributes, and use order winners and qualifiers to maximize customer value.

Collaborate with the team to map the system using flowcharts and value stream mapping, classifying steps as value adding, non-value adding, or necessary non-value adding.

Explore additional types of waste beyond the 8 wastes, including making the wrong products, excessive information, wasted time, inappropriate systems, and wasted utilities, to minimize muda.

Chasing waste in lean manufacturing teaches that evaluating and prioritizing improvements by value creation, cost, effort, and system-wide flow is essential for feasible lean gains.

Explore why inventory is necessary yet costly, and how Little's Law links work in progress to throughput and lead time, while protecting against uncertainty and enabling production smoothing.

Apply Little's Law to compute minimum work in progress from throughput and lead time, using L = λW with L as inventory, λ as throughput, and W as throughput time.

Explore lean manufacturing tools such as 5S, PDCA, visual management, Gemba, and A3, introduced to tackle common improvement and efficiency challenges on the journey.

Map the SMED changeover on a Gantt chart, remove unnecessary steps, convert internal steps to external, run steps in parallel, speed remaining tasks, and repeat to establish a new baseline.

Develop value stream maps that document material and information flows from current to future state, using standardized symbols to reveal cycle times, lead times, and value-adding versus non-value-adding steps.

learn structured gemba walks to connect with operations on the shop floor, lab, or office; use seven steps—theme, team, process focus, observe, record, follow-up—to drive improvements.

Standard work underpins the Toyota production system, documenting repeatable, reliable processes that anchor improvements. Empower operators to create standard operating procedures and sustain them through supervision and bottom-up continuous improvement.

Maximize customer value while minimizing waste through quality. Explore Kaizen and three quality aims, reducing complexity, mistakes, and variation, along with 5 Whys, Poka-Yoke, and TPM.

Reduce variation in lean manufacturing and services by monitoring key process parameters with SPC charts and driving continuous, in-control quality improvement through 5S, standard work, and TPM.

Learn how jidoka, or autonomation, stops the process automatically at irregularities to prevent waste and rework and to solve problems immediately.

Learn to reduce breakdowns and improve machine availability through total productive maintenance, emphasizing prevention, lifecycle planning, operator involvement, and adapting maintenance to life cycle stages within the lean value stream.

Improve supply chain predictability by mastering demand management and demand smoothing, balancing external and internal signals to optimize capacity planning, resource use, and inventory in lean operations.

Influence external demand by reducing promotions, smoothing price variation, promoting smaller, frequent deliveries, sharing information, and pursuing vendor-managed inventory and collaborative forecasting to curb bullwhip and align with end customers.

Cycle time measures the time to complete a specific operation, and total processing time is the sum of cycle times across all steps.

Define takt time as allowable time per unit, cycle time as processing time, throughput time as total time in the system, and lead time as time from order to receipt.

Demonstrate that local efficiencies in individual processes can create a terribly inefficient system, and promote one-piece flow, minimum lead times, and standardized process flows to optimize overall operations.

Coordinate lean scheduling across the whole factory and inter-process links to boost performance. Learn how scheduling and planning drive system-wide improvements beyond 5S, maps, and waste lists.

Choose batch sizes that sustain lean flow by balancing changeovers, labor, and machine capacity, enabling small batches for smooth workloads, low inventory, fast lead times, and early quality problem detection.

Evaluate why the economic batch quantity and economic order quantity (EBQ/EOQ) misstate demand and takt time, promoting big batches; learn a leaner approach to inventory and batch sizing.

Compare push and pull strategies through two cake shops: one forecasts and builds to stock, the other uses actual demand to bake to order, reducing waste and stock.

Compare push and pull approaches, showing how pull uses kanban and make-to-order to react to actual demand, while push relies on forecast schedules, MRP, and make-to-stock.

Explore the essentials of lean history and its practical benefits for driving improvements. Build credibility when educating colleagues and navigating lean conversations.

Explore the origins of Six Sigma, tracing its 1980s development at Motorola and its global adoption as a quality improvement framework, including Lean Six Sigma variations.

Apply the dmaic framework: define, measure, analyze, improve, and control, as a standardized six sigma method for problem solving, process improvement, and comparison with pdca.

Explore the Dmaic improvement framework through a donut factory story, define the cream standard, measure outputs and inputs, analyze root causes, improve processes, and control performance.

Explore popular analytical tools used in Six Sigma to analyze data, while prioritizing thoughtful hypothesis design, data needs, and effective presentation for identifying root causes and actionable insights.

Explore how Six Sigma uses process mapping with Visio and a core Excel-based toolkit for data analysis, plus specialized packages like Minitab, JMP, Chronos, Statistica, Hertzler, and Sigma Flow.

Explore data visualization methods to reveal insights, comparing scatter diagrams, histograms, box plots, and process behavior charts to communicate trends, correlation, and control in Six Sigma contexts.

Compare lean and six sigma, highlight their differences and when to use each, and show how they can complement one another, starting with lean if a robust framework is missing.

Lean focuses on value streams, flow, pull, and waste reduction, while Six Sigma targets specific processes with data-driven, prescriptive improvement using Dmaic.