Legacy Modernisation
Recognising hidden costs, choosing a modernisation strategy, and planning migration from legacy systems.
Legacy systems rarely fail overnight. They accumulate cost gradually through maintenance burden, talent risk, security exposure, and missed opportunities. These guides help you recognise when a system has crossed from "stable" to "expensive" and choose the right modernisation path.
From the 6 Rs decision framework to detailed migration playbooks, this collection is for technology leaders who need to modernise without disrupting the business.
Migrating from .NET Framework to .NET 10: An AI-Assisted Approach with Claude Code
Migrate .NET Framework 4.x to .NET 10 with Claude Code. Hooks, ArchUnitNET, parallel cloud agents, worktrees, and real anonymised migration examples.
Legacy .NET Application Assessment: A Scoring Framework for Modernisation Readiness
A practical scoring framework to assess legacy .NET applications for modernisation readiness. Score across six dimensions and prioritise your migration programme.
Modernising Legacy .NET Applications with AI: The Enterprise Playbook (UK, 2026)
A structured approach to modernising legacy .NET Framework applications using AI-assisted development. Four pillars, real migration patterns, and practical guidance for enterprise teams.
Xamarin & PhoneGap Are Dead: The Enterprise Mobile Migration Playbook (2026)
Both Xamarin and PhoneGap have reached end of life. This playbook covers migration paths, framework choices, and practical timelines for enterprise mobile teams.
Xamarin to .NET MAUI Migration: A Practical Guide with AI-Assisted Code Translation
Step-by-step guide for migrating Xamarin.Forms applications to .NET MAUI. Custom Renderers to Handlers, DI migration, and where AI tooling helps most.
Migrating from Xamarin or PhoneGap to React Native: When It's the Right Move
A practical guide for migrating enterprise mobile apps from Xamarin or PhoneGap to React Native. Architecture mapping, Expo setup, and AI-assisted translation.
Modernise, Rebuild, or Replace: A Decision Framework for Legacy Systems
Six modernisation strategies explained in plain language. Decision criteria, cost and risk comparisons, and how AI-augmented delivery changes which options are viable.
Signs Your Legacy System Is Costing You More Than You Think
Legacy systems hide their true costs in maintenance burden, talent risk, security exposure, and missed opportunities. Eight warning signs and how AI-augmented analysis reveals the full picture.
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Explore other guide categories
AI and Code
AI tools, IP ownership, attribution, and compliance for enterprise teams.
API and Integration
REST, GraphQL, gRPC, Azure API Management, and integration patterns.
Build, Buy, or Replace
Decision frameworks for build vs buy, SaaS replacement, and migration planning.
Development Practice
DevOps, CI/CD, testing, estimation, and delivery patterns.
Teams and Support
Choosing partners, managing handovers, and outsourcing application support.
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