Legacy System Assessment & Modernization Roadmap

Understand what you have before committing to an expensive rewrite

Many businesses run on software that no one fully understands anymore. The original developers are gone, documentation never existed or was long since lost, and the system has accumulated years of undocumented changes. Before your team commits to a costly rewrite or migration, Amplitude Point can help you understand exactly what you have, what risks you're carrying, and what your real options are.

Who This Is For

Small and mid-sized software teams running business-critical applications that have become difficult to deploy, troubleshoot, or maintain. This includes legacy ASP.NET WebForms or MVC applications, WinForms desktop applications, Windows Services running unattended business processes, console applications and scheduled jobs, jQuery-heavy frontends overdue for modernization, SQL Server databases with undocumented schemas, Azure-hosted systems with unclear infrastructure, and any internal tool where the original developers are gone and institutional knowledge has been lost.

What the Assessment Covers

  • System Recovery – Reverse-engineer undocumented applications and recover lost system knowledge, including build processes, deployment procedures, and PowerShell automation scripts
  • Architecture Analysis – Examine backend structure (ASP.NET, C#, VB.NET), frontend dependencies (jQuery, JavaScript, React), database schemas (SQL Server), and Azure infrastructure
  • Business Logic Documentation – Identify and document critical workflows that live only in the code, including stored procedures, API contracts, and integration points
  • Frontend Evaluation – Assess jQuery or legacy JavaScript frontends and map realistic migration paths to modern frameworks like React
  • Database Assessment – Analyze SQL Server schemas, stored procedures, undocumented business logic in the database layer, and data integrity risks
  • Risk Identification – Surface technical debt, fragile components, Azure deployment risks, and the parts of the system most likely to cause production problems
  • Modernization Options – Determine whether the system should be modernized incrementally, refactored, replaced, or retired — and what each path actually involves

Technologies We Work With

ASP.NET WebForms ASP.NET MVC C# VB.NET SQL Server (MSSQL) React JavaScript / jQuery Azure PowerShell .NET Framework .NET Core / .NET 6+ WinForms Windows Services Console Applications

What You Receive

  • Architecture Notes – A clear record of how the system is structured and how its parts relate to each other
  • Dependency Map – A complete picture of integrations, external services, databases, and internal coupling
  • Prioritized Risk List – The most pressing technical and operational risks, ranked by business impact
  • Modernization Roadmap – A concrete, lower-risk plan for improving or replacing the system, with migration and hot-swap strategies where applicable

Optional: Implementation Support

After the assessment, Amplitude Point can stay engaged to help your team act on the findings. This includes architecture guidance, implementation leadership, code reviews, and developer mentoring — so the recommendations don't sit on a shelf.

"Amplitude Point helps small and mid-sized software teams understand and modernize legacy applications — ASP.NET, SQL Server, jQuery frontends, Azure infrastructure — clean up fragile integrations, and make production systems easier to deploy, troubleshoot, and maintain."

Frequently Asked Questions

What is a legacy system assessment?

A structured technical investigation of an older application or codebase. It recovers lost system knowledge, documents architecture and business logic, identifies technical risks, and produces a concrete plan for modernization, migration, or retirement — before your team commits to an expensive rewrite.

Do you only work with .NET systems?

No. We work across the full stack. Our experience includes ASP.NET (WebForms and MVC), C#, VB.NET, React, JavaScript and jQuery frontends, SQL Server databases, Azure infrastructure, and PowerShell scripting. If your legacy system touches any of these technologies — or several of them at once — we can help.

What deliverables will I receive?

Architecture notes documenting how the system is structured, a dependency map of integrations and external services, a prioritized risk list ranked by business impact, and a modernization roadmap with concrete recommendations your team can act on.

Can you help us implement the recommendations?

Yes. After the assessment, Amplitude Point can stay engaged through architecture guidance, implementation leadership, code reviews, and developer mentoring — so the plan gets executed, not shelved.

Get in Touch

If your team is managing a system the business depends on but no longer fully understands, we'd like to help. Reach out to discuss your situation — no commitment required.

Contact Us