Root Digit Insights
Engineering judgment, documented.
Technical essays, decision frameworks and operating notes from Root Digit engineering and research practices.
We focus on assumptions, implementation constraints and failure modes—the parts that determine whether a system survives production.
Technical analysis for operating decisions.
Quantifying ROI on Industrial AI Deployments: A Framework for CFOs
Most enterprise AI pilots stall before reaching production. We break down a four-quadrant model for evaluating AI investment returns across efficiency, revenue, risk, and strategic optionality.
Root Digit Research
Enterprise AI Practice · April 14, 2026 · 7 min read
Read the analysisResearch discipline
Publication register
Latest technical analysis.
21 articles in the current view. Search includes titles, summaries, authors and practices.
01
Robotics
April 2, 2026
From Lab to Line: Hardening ROS 2 Systems for 24/7 Industrial Operation
A field-tested checklist covering DDS tuning, lifecycle management, watchdog patterns, and OTA update strategies for autonomous platforms running in factories and warehouses.
Root Digit Engineering
Robotics Practice
02
IoT
March 21, 2026
Edge-First IoT Architecture: When Centralised Cloud is the Wrong Choice
Latency, bandwidth cost, and regulatory residency are forcing a rethink of IoT data flows. A reference architecture for hybrid edge-cloud deployments at industrial scale.
Root Digit Architects
IoT & Edge Practice
03
AI
March 6, 2026
Computer Vision in Manufacturing QA: Lessons From 30 Production Deployments
Defect detection systems fail in ways traditional QA does not. We share what we learned about lighting, dataset drift, edge inference, and operator buy-in across thirty deployments.
Root Digit Engineering
Computer Vision Lead
04
IoT
February 19, 2026
Securing the OT/IT Boundary: A Practical Guide to IoT Cybersecurity
Operational technology networks were never designed for the threat landscape they now face. A defence-in-depth playbook covering segmentation, identity, and continuous monitoring.
Root Digit Security
Cybersecurity Practice
05
Robotics
February 5, 2026
Choosing Between AGVs and AMRs: A Decision Framework for Operations Leaders
The cost difference is real, the use cases overlap, and the wrong choice locks in years of operational rigidity. A structured decision framework grounded in throughput, layout, and TCO.
Root Digit Robotics
Solutions Architect
06
Engineering
January 22, 2026
MLOps at Enterprise Scale: Why Your Models Decay and What To Do About It
Model drift, data drift, concept drift — the three failure modes that break production AI. A reference MLOps stack and the governance practices that keep models reliable.
Root Digit Platform
MLOps Lead
07
Industry
January 8, 2026
Industry 4.0 Without the Hype: A Three-Phase Roadmap for Mid-Market Manufacturers
Forget the moonshots. The companies winning at smart manufacturing are doing fewer things, sequenced correctly. Our standard engagement roadmap, distilled.
Root Digit Strategy
Industrial Practice
08
AI
March 26, 2026
Retrieval-Augmented Generation in Production: Architecture Beyond the Demo
A weekend RAG demo is trivial. A retrieval system that stays accurate, fast, and grounded under real traffic is not. We cover chunking, hybrid retrieval, reranking, evaluation, and the freshness loop most teams skip.
Root Digit Research
Enterprise AI Practice
09
Robotics
March 12, 2026
Sim-to-Real: Closing the Reality Gap for Industrial Robots
Training in simulation is fast, cheap, and safe. Deploying those policies on real hardware is where they break. A field guide to domain randomisation, system identification, and the validation gates that catch failures before the floor does.
Root Digit Robotics
Autonomy & Controls
10
IoT
February 26, 2026
Predictive Maintenance That Pays: From Vibration Data to Remaining Useful Life
Most predictive-maintenance pilots produce dashboards, not savings. The difference is whether the model drives a maintenance decision and whether anyone trusts it. A grounded approach from sensors to return on investment.
Root Digit Architects
IoT & Edge Practice
11
Engineering
February 11, 2026
Observability for Production ML: Catching Model Decay Before Your Users Do
Standard observability tells you the service is up. It says nothing about whether the model is still right. Data drift, concept drift, and silent degradation need their own instrumentation. Here is the stack that works.
Root Digit Platform
ML Platform Engineering
12
Industry
December 18, 2025
Build, Buy, or Assemble: The Enterprise AI Platform Decision
The instinct to build an in-house AI platform is usually wrong, and the instinct to buy a monolith usually is too. A decision framework for assembling a platform you actually own without rebuilding commodities.
Root Digit Strategy
Advisory
13
AI
November 26, 2025
Guardrails, Not Gates: Governing Generative AI Without Killing Velocity
Heavy approval boards make AI safe by making it useless, and teams route around them. A paved-road approach encodes governance into the platform so the safe path is also the fast path. What that looks like in practice.
Root Digit Security
AI Governance
14
Robotics
March 5, 2026
Foundation Models for Robotics: Vision-Language-Action Policies on Real Hardware
Large vision-language-action models promise robots that generalise across tasks instead of being programmed for one. We separate the genuine capability from the demo reel and cover what it takes to run these policies on real hardware.
Root Digit Robotics
Autonomy & Controls
15
Engineering
January 22, 2026
Serving Large Language Models Affordably: Quantization, Distillation, and Inference Optimization
Inference, not training, is where most enterprises spend their model budget. The techniques that cut that cost without wrecking quality are well understood but rarely applied systematically. A practitioner overview.
Root Digit Platform
ML Platform Engineering
16
Robotics
April 2, 2026
Real-Time Motion Control: Servo Drives, EtherCAT, and the Pursuit of Determinism
Behind every smooth robotic motion is a control loop that must close on time, every time. A look at the servo drives, fieldbuses, and real-time discipline that separate precise machines from jittery ones — no machine learning involved.
Root Digit Robotics
Motion & Controls
17
Energy
March 19, 2026
Modernising Nuclear Instrumentation & Control: Going Digital Without Compromising Safety
Aging analog control systems are being replaced with digital instrumentation and control across the nuclear fleet. The engineering challenge is doing so under a safety regime that does not forgive shortcuts.
Root Digit Energy Systems
I&C Engineering
18
Infrastructure
March 1, 2026
Inside the Modern Data Center: Power, Cooling, and the Density Wall
Rack densities have outrun the assumptions data centers were built on. The constraint today is rarely compute — it is getting power in and heat out. An engineering tour of the physical layer.
Root Digit Infrastructure
Critical Facilities
19
Blockchain
February 5, 2026
Engineering Permissioned Blockchain for Enterprise Settlement: Beyond the Hype
Most enterprise blockchain projects fail not because the technology cannot work, but because it was applied to a problem that did not need it. When a permissioned ledger is genuinely the right tool — and how to engineer one that lasts.
Root Digit Blockchain Lab
Distributed Systems
20
Security
January 15, 2026
Preparing for Q-Day: A Post-Quantum Cryptography Migration Playbook
A sufficiently large quantum computer would break the public-key cryptography that secures systems today. For long-lived secrets the threat is not hypothetical, and the migration to post-quantum algorithms is an engineering programme that should start now.
Root Digit Security
Cryptography & Assurance
21
Energy
December 4, 2025
Grid-Scale Energy Storage: Engineering the Buffer for a Renewable Grid
Renewables are intermittent; the grid must stay balanced every second. Large-scale storage is the buffer that reconciles the two. An engineering look at the technologies, the trade-offs, and what a credible storage strategy weighs.
Root Digit Energy Systems
Power Systems
Root Digit publishing
Choose the level of evidence the decision requires.
01
Engineering whitepapers
Versioned quantitative studies with assumptions, models and technical limits.
Explore02
Executive guides
Long-form operating guidance across architecture, governance and delivery.
Explore03
Case studies
Problem, solution and implementation records from client and product programmes.
Explore