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.

Root Digit InsightsAI

Technical analysis for operating decisions.

Lead analysisAI

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

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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

9 min read

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

6 min read

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

7 min read

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

7 min read

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

7 min read

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

6 min read

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

6 min read

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

7 min read

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

6 min read

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

8 min read

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

6 min read

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

6 min read

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

6 min read

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

6 min read

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

7 min read

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

7 min read

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

6 min read

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

6 min read

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

6 min read

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

6 min read

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

6 min read

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