This curriculum spans the analytical and operational rigor of a multi-workshop operational improvement initiative, equipping practitioners to detect, diagnose, and manage bottlenecks in environments comparable to complex, cross-functional production and service delivery systems.
Module 1: Foundations of Flow Analysis in Complex Systems
- Selecting appropriate units of flow (e.g., transactions per hour, units processed per shift) based on operational context and measurement feasibility.
- Mapping cross-functional process boundaries when handoffs occur between departments with misaligned performance metrics.
- Deciding whether to model flow using discrete event simulation or time-series analysis based on data availability and system variability.
- Identifying hidden queues in knowledge work processes where tasks accumulate without formal tracking systems.
- Calibrating flow measurements to account for rework loops that distort throughput calculations.
- Establishing baseline flow efficiency by calculating value-add time versus total lead time across a representative sample of work items.
Module 2: Data Collection and Performance Metric Design
- Deploying non-intrusive data collection methods in legacy systems lacking API access or structured logging.
- Designing custom dashboards that reconcile conflicting throughput definitions between ERP, WMS, and shop floor systems.
- Implementing time-stamping protocols at process gates where manual entry introduces recording delays.
- Validating cycle time data against shift logs and labor tracking to detect measurement gaps during breaks or maintenance.
- Choosing between average, median, or percentile-based metrics depending on outlier sensitivity in high-variability operations.
- Establishing data governance rules for ownership, refresh frequency, and exception handling in multi-site environments.
Module 4: Constraint Diagnosis Using Throughput Accounting
- Calculating throughput dollar per constraint hour to prioritize improvement efforts in mixed-product environments.
- Isolating bottleneck shifts caused by product mix changes rather than capacity degradation.
- Reconciling accounting-based cost centers with actual constraint locations that may span multiple departments.
- Adjusting throughput calculations to exclude non-recoverable scrap and rework generated upstream of the constraint.
- Implementing dynamic throughput tracking when pricing or margins vary significantly across customer segments.
- Designing buffer management reports that signal constraint starvation due to upstream delays.
Module 5: Buffer and Inventory Strategy at Constraint Points
- Setting buffer sizes using demand variability and replenishment lead time rather than arbitrary multiples.
- Configuring physical buffer zones in shared workspaces where space constraints limit WIP accumulation.
- Implementing visual buffer management systems in environments with low digital infrastructure maturity.
- Adjusting buffer levels dynamically during seasonal demand surges while avoiding overstocking risks.
- Enforcing buffer discipline when supervisors bypass queue order to expedite individual jobs.
- Integrating buffer status into daily operational reviews to maintain focus on constraint protection.
Module 6: Subordination of Non-Bottleneck Resources
- Aligning maintenance schedules on non-constraint equipment to avoid disrupting bottleneck flow.
- Adjusting batch sizes on upstream processes to match bottleneck capacity without creating excess WIP.
- Reassigning labor from non-bottleneck stations during periods of constraint downtime to prevent idle time inflation.
- Modifying performance incentives for non-constraint teams to emphasize flow support over local efficiency.
- Implementing pull signals from the constraint to regulate release of work into the system.
- Managing changeover frequency on non-constraints to balance setup time with flow responsiveness.
Module 7: Continuous Monitoring and Bottleneck Migration Management
- Establishing threshold-based alerts for cycle time deviations that indicate emerging bottlenecks.
- Conducting periodic constraint audits after capacity changes or process modifications.
- Updating process maps and flow models when automation is introduced at previously constrained steps.
- Interpreting throughput data during planned shutdowns to distinguish true bottlenecks from temporary constraints.
- Coordinating cross-functional reviews to validate bottleneck migration hypotheses before reallocating resources.
- Archiving historical constraint data to identify recurring patterns across product cycles or demand phases.
Module 3: Applying Theory of Constraints in Multi-Stage Processes
- Identifying the true system constraint when multiple resources exhibit similar utilization rates.
- Implementing Drum-Buffer-Rope scheduling in environments with frequent rush orders and dynamic priorities.
- Designing buffer time for the constraint that accounts for upstream variability without inflating lead times.
- Resolving conflicts between TOC-based scheduling and MRP-generated production plans.
- Managing constraint output when downstream testing or quality holds create artificial blockages.
- Adjusting rope release mechanisms when supply chain delays impact raw material availability at the drum schedule.