Value stream
A value stream is the end-to-end sequence of activities that delivers a product or feature to a customer. Value-stream mapping (VSM) makes the stream visible, identifies waste (handoffs, queues, rework), and prioritises improvements. For software, the value stream usually starts with idea capture and ends with the customer using the deployed change.
Value-stream thinking comes from Lean manufacturing (Toyota Production System). In software, the dominant waste is queue time between stages — PRs waiting for review, stories waiting for PM acceptance, releases waiting for QA. A VSM exercise lays out every stage with average wait time vs work time, and the answer is almost always: 80% of lead time is waiting. Process mining is the tool that quantifies this without needing a workshop.
Long-form posts that explore value stream in depth — when to use it, common failure modes, how AI helps.
- BPMN process mining without Celonis moneyCelonis charges $100K-$1M+ for process mining. It's genuinely good. It's also wildly overpriced for 95% of teams. This is the lighter-weight playbook that actually works.9 min read
- The connected delivery graph: one source of truth from PRD to prodMost teams ship software with five tools that don't talk to each other. The friction isn't any individual tool — it's the missing graph between them. This is the case for one connected graph.9 min read
- What's the actual ROI of AI in software delivery?$4-$8 back for every dollar spent within 6 months, for most teams. The honest math from real data, not the deck.7 min read
Related terms
- Lead time
Lead time is the elapsed time from when work is requested (story created, ticket filed) to when it's delivered (deployed to production).
- Throughput
Throughput is the count of work items completed per unit of time (typically per week or per sprint).
- BPMN
Business Process Model and Notation is the ISO 19510 standard for graphically representing business processes as flowcharts.