Workspace
Value-Stream Bottleneck Analyser
Find and name the bottleneck stages in a value stream so the next architecture increment targets where it hurts most.
Phase B, Business ArchitectureDerived from TOGAF
Stage cards are the value-add steps; the labels between them are the queues work waits in. The ribbon below draws the whole lead time to scale, so the longest queue, not the slowest step, stands out as the first thing to attack.
Lead time here is about ninety six days, but value-add time is only the process inside the stages. The twenty five day queue before design is the bottleneck to attack first. Source: Lean value stream mapping.
The map holds up to six stages; names take 20 characters.
process 40d, queues 46d
Target "Design and Planning" first: it carries the highest composite pain score (92%), driven mainly by the queue before it (20 days). Reducing friction there moves end-to-end lead time more than any other single change.
Each metric is normalised to 0-1 against the highest value across all stages, then combined as a weighted sum: queue 35%, process time 25%, error rate 25%, cost 15%. The stage with the highest composite score is the bottleneck.