20% Performance Boost Through Legacy Workflow Modernization
We partnered with a software development company specializing in complex integration projects to modernize a legacy workflow platform built on Windows Workflow Foundation (WF) and WPF. By migrating core components to .NET 7, redesigning service communication, and transforming the desktop application into a modern web experience, we improved performance, scalability, and long-term maintainability.
Success Highlights
- 20% improvement in platform performance
- 30% increase in scalability
- 15% reduction in maintenance costs
Key Details
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Industry: Information Technology
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Geography: United States
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Platform: Web-Based Integration & Workflow Management Platform
Business Challenge
The client’s workflow platform depended on aging Microsoft technologies that were no longer aligned with the latest .NET ecosystem, creating technical risk and limiting future growth.
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Outdated Workflow Technology: The application relied heavily on Windows Workflow Foundation within .NET Framework 4.x, which is not supported by modern .NET versions.
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Limited Component Compatibility: Although some WF components had been converted to .NET Core through UiPath’s open-source implementation, several unsupported and custom components still required re-engineering.
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Desktop-Centric Architecture: The WPF-based application constrained accessibility and scalability, making a transition to a modern browser-based experience necessary.
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Growing Maintenance Risk: Legacy dependencies increased the effort required to introduce new functionality, resolve defects, and maintain long-term compatibility.
Our Solution Approach
We followed a phased modernization strategy to safely transition legacy workflow capabilities to a scalable, web-based architecture.
Analyze Legacy Components & Dependencies
A dedicated team of architects and senior developers worked with the client’s engineering team to review the existing WF implementation, custom components, dependencies, and migration risks.
Prove the Migration Strategy
We identified components compatible with the UiPath-converted WF implementation, created a migration inventory, and validated the proposed approach through multiple proof-of-concept implementations.
Convert Workflow Components to .NET 7
Eligible and custom workflow components were refactored and migrated to .NET 7 while preserving existing business behavior and integration requirements.
Rebuild Service Communication with Web APIs
Modernized workflow components were integrated through .NET 7 Web APIs, replacing legacy communication patterns with more maintainable service interfaces.
Move from WPF Desktop to Modern Web
The existing WPF application was redesigned as an Angular-based web application, improving cross-platform accessibility and enabling a more scalable user experience.
Technical Highlights
- Migration from Windows Workflow Foundation on .NET Framework 4.x to .NET 7
- Refactoring of unsupported and custom WF components for modern .NET compatibility
- Integration of migrated workflow functionality through .NET 7 Web APIs
- Transformation of the WPF desktop application into an Angular web application
- Proof-of-concept validation for legacy component compatibility before production migration
- Modularized workflow execution to improve maintainability and future extensibility
workflow = LoadWorkflow(workflowId);
if (workflow.IsValid())
result = await ExecuteAsync(workflow);
return ApiResponse(result);
Business Outcomes
Transformed manual curation into a scalable automation-led workflow that improved moderation speed, search visibility, and accessibility.
Migration to .NET 7 and optimized workflow components improved responsiveness and execution speed.
The modernized architecture provided greater flexibility to support increasing workloads and future business growth.
Reducing legacy dependencies and standardizing the technology stack lowered ongoing support and maintenance effort.
- Enabled cross-platform access through a browser-based application
- Reduced dependence on unsupported Windows Workflow Foundation components
- Improved maintainability through modern APIs and modular architecture
- Created a stronger foundation for future enhancements and integrations