Root Cause Analysis

KEY TAKEAWAYS A DevOps team cut its infrastructure deployment lead time by more than half. The team followed Agile practices well. The blockers hid in cross-team handoffs where no ceremony could reach. Value stream mapping revealed about half the lead time lost in a single queue due to unclear routing and missing documentation. Simple interventions drove the result: checklists, front-loaded requests, early handovers. No new tools. No reorganization. The Problem A DevOps team at a large enterprise handled cloud infrastructure deployments. A small DevOps team, working across multiple projects, supported development teams who needed environments to build and test their applications. ...

KEY TAKEAWAYS False defects dropped from 44% to 4% by implementing an andon system where testers call for help before reporting uncertain bugs Testing productivity more than tripled (from 1.5 to 8 tests per person per day) through a pull flow system with daily targets Failed corrections dropped from 23% to 10% using a quality wall with expert verification Client satisfaction recovered after years of complaints, with the client noting clear improvement in service quality This case study was co-presented with Arnaud Cailleau, then Director of Testing Services at Sopra Steria. [Download the original presentation (PDF)] ...

KEY TAKEAWAYS Frameworks organize work, they don’t fix it: 84-96% of Agile transformations fail because they optimize the container (sprints, ceremonies, roles) without addressing how work actually flows through the system. Define outcomes first, then work backward: Results-based coaching starts with a specific, measurable performance gap and identifies the changes that will close it, rather than adopting a methodology and hoping for results. Four practices drive measurable improvement: Performance gap framing, direct observation, value stream mapping, and root cause analysis reveal problems that retrospectives and dashboards miss. Case study proof: A DevOps team running Scrum reduced infrastructure deployment lead time from 64 to 29 days (55%) by tracing actual work across team boundaries and fixing specific root causes. Start this week: Trace one feature end-to-end, spend one hour observing your team work, and define one performance gap with specific metrics. If coaching engagements have disappointed you by promising transformation yet delivering nothing more than process buzzwords, you are not alone. ...

KEY TAKEAWAYS A value stream is the end-to-end flow of activities required to deliver software from idea to production, mapping it reveals bottlenecks, handoffs, and waste Value Stream Mapping (VSM) in tech focuses — amongst others — on lead time, process time, and percent complete/accurate (%C/A) at each step Example: A 30-person engineering team reduced delivery lead time by 45% and cut process steps from 14 to 6 using VSM and 7 PDCA initiatives The 5-step approach: Learn Lean techniques → Map “As Is” → Formulate improvements → Create “To Be” → Align on action plan VSM builds lasting capability; teams equipped with Lean techniques proactively surface and resolve delivery issues What is a Value Stream? Traditional Lean Management Definition A value stream encompasses the complete sequence of activities, both value-adding and non-value-adding, required to bring a product or service from its initial conception to the final delivery to the customer. ...

KEY TAKEAWAYS The PDCA Cycle (Plan-Do-Check-Act) applies the scientific method to problem-solving: form a hypothesis, test it, measure results, standardize or adjust PDCA and the Deming Cycle are used interchangeably, though Deming himself preferred PDSA (Plan-Do-Study-Act) and called it the “Shewhart Cycle” Example: A 31-person development team at a bank reduced defects from 93 to 8 (-91%) using better unit-testing, visual management, daily flash meetings, and a developer checklist Example: A QA team reduced false bug reports from 24% to 4% (-83%) using an Andon help signal system and targeted Dojo training Put PDCA into practice → The A3 report is PDCA on a single page. Download the free A3 Problem-Solving Template and start your first cycle. Download the Free Template → ...

KEY TAKEAWAYS A3 Problem Solving is a structured one-page method that forces clarity: define the problem, find root causes, implement countermeasures, and confirm results. Successful A3 implementation requires pilot projects, leadership buy-in, and integration into existing team rituals — not a top-down rollout. A tech support team used A3 to eliminate a 145-ticket backlog in 2 months, boosting productivity 72% and customer satisfaction 35%. A tech support team cleared a 145-ticket backlog in 2 months. Here’s the one-page method that made it happen. ...

KEY TAKEAWAYS Root Cause Analysis goes beyond symptoms to identify core issues – essential for preventing recurring problems and developing sustainable solutions. The RCA process requires methodical validation through observation and data, not assumptions or quick conclusions. A true root cause must meet specific criteria: prevent recurrence, drive systemic change, show clear evidence, and have broader organizational impact. Every morning, from 8 a.m. until noon, a Tech Leader and his team gather around the main accounting screen only to find that the transaction data was outdated. Although the system was designed to refresh the transaction list every hours, it only does so once every morning. This situation is causing a critical delay in decision-making and costing the company valuable time. ...

KEY TAKEAWAYS 37% Increase in Customer Satisfaction: Achieved through systematic lead time reduction in just 3 months. 94% Reduction in Support Backlog: Accomplished without additional headcount or resources. Sustainable Performance Improvement: through measurable KPIs and executive-driven accountability. Context: E-Government Services Support Challenge A government agency is transforming the way it serves its citizens. They’ve launched several online services – what we call “e-services” – that revolutionize how people interact with the government. Citizens can, for example, now request criminal records, obtain national certificates, and register their businesses, all through their screens. ...