Engineering & Platforms
Application Modernization
Engineering work that upgrades existing applications without starting over, such as moving from .NET Framework to modern .NET, AngularJS to React, old Java or PHP versions to supported releases, and monoliths to modular designs.
Capability overview
What application modernization involves
Applications built five to fifteen years ago often still deliver business value but sit on unsupported frameworks, outdated runtimes and libraries with known vulnerabilities. Every year the upgrade gets harder and security exposure grows. Application modernisation brings the codebase up to date while preserving the business logic that works.
Typical projects include moving from .NET Framework to modern .NET, AngularJS or jQuery front ends to React or Angular, Java 8 to current long-term support releases, PHP 5 or 7 to PHP 8 with modern Laravel, and restructuring tangled code into clear modules. Automated tests are added first so changes can be made with confidence.
What is included
Modernisation work
Runtime and framework upgrades
Applications moved to supported language versions and frameworks, with deprecated APIs replaced.
Front-end migration
Legacy interfaces rebuilt screen by screen in modern frameworks, sometimes running old and new side by side during transition.
Dependency remediation
Outdated and vulnerable libraries updated or replaced, with software composition analysis in the pipeline.
Refactoring and modularisation
Tangled code separated into modules with clear boundaries, making future changes safer.
Containerisation and CI/CD
Applications packaged into containers and given automated build, test and deployment pipelines.
How we work
How we deliver application modernization
Codebase assessment
Size, dependencies, test coverage, framework usage and upgrade blockers analysed with tooling.
Safety net
Characterisation tests written around critical behaviour before code changes begin.
Incremental upgrade
Changes made in small steps, each deployable, instead of a long-running rewrite branch.
Regression verification
Automated and manual regression testing confirms business behaviour remains unchanged.
Release and cleanup
Modernised application released and obsolete code, servers and licences removed.
Related capabilities
Related capabilities in Software & Product Engineering
Legacy Application Migration
Moving applications and their data from old platforms, servers or hosting environments to new ones, such as on-premises to cloud, old databases to current versions or retired platforms to supported equivalents, with minimal downtime.
Software Maintenance & Support
Ongoing support for business applications after launch, including bug fixes, security patches, dependency updates, minor enhancements, performance monitoring and user support under agreed service levels.
Custom Software Development
Software built around the way your organisation actually works, for processes that packaged products handle poorly, delivered in short increments with source code, documentation and intellectual property owned by you.
Enterprise Application Development
Large, business-critical applications for many users, departments and locations, engineered for role-based security, audit trails, high availability, integration with core systems and a long operational life.
Explore further
Explore connected pages
Related services
Related solutions
Application Modernization Solutions
Cloud, security, integration, modernization and platform engineering solutions. Acmez shapes…
Enterprise Integration Solutions
Cloud, security, integration, modernization and platform engineering solutions. Acmez shapes…
Enterprise Application Solutions
Business and application solutions that modernise how work gets done. Acmez shapes enterprise…
Where this applies
Healthcare & Life Sciences
Technology systems for regulated environments where privacy, auditability and continuity…
Manufacturing & Industrial
Connected operations, asset, field, supply chain and industrial platforms for complex operating…
Banking, Financial Services & Insurance
Technology systems for regulated environments where privacy, auditability and continuity…
E-Commerce
Digital platforms for customer experience, operations, commerce, content, marketing and service…
Questions & answers
Questions about Application Modernization
Cannot find what you need? Our team responds to technical and commercial questions within one business day.
Ask a questionFull rewrites often take longer than expected and lose hidden business rules. Incremental modernisation is usually safer, unless the application is small or its design no longer fits the business at all.
They help with code analysis, generating tests and converting repetitive code patterns. Experienced engineers still review every change, because converted code can compile while behaving differently.
Backend and framework upgrades are often invisible to users apart from better speed and stability. Front-end migrations are planned with users when screens change.
After a fixed-price assessment, modernisation is quoted in phases based on codebase size, test coverage and the number of framework changes involved.
Next step
Discuss application modernization with Acmez
Share what you need to change, build, integrate or support. We will map the practical next step.