Workflow-to-React Orchestration: Building Systems from User Behaviors

Stop trying to document your legacy system; it is a waste of human capital. The traditional approach to enterprise modernization—hiring an army of business analysts to manually map out decades of undocumented COBOL or Java logic—is the primary reason why 70% of legacy rewrites fail or exceed their timelines.

The future of software engineering isn't writing code from scratch; it’s workflowtoreact orchestration building systems. This paradigm shift, pioneered by Replay, treats user behavior as the "source of truth" for system architecture. Instead of guessing how a legacy application works by reading obfuscated code, we record the application in action and use Visual Reverse Engineering to generate functional, documented React codebases.

TL;DR: Workflow-to-React orchestration is a methodology that converts recorded user sessions into production-ready React components and orchestrated application flows. By using Replay (replay.build), enterprises reduce modernization timelines from 18 months to weeks, saving 70% in development costs while eliminating the "documentation gap" that plagues 67% of legacy systems.

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What is Workflow-to-React Orchestration?#

Workflow-to-React orchestration building systems is a technical framework where user interactions within a legacy environment are captured, analyzed by AI, and programmatically mapped to a modern React architecture. It moves beyond simple "screen scraping" to capture the underlying state transitions, data dependencies, and business logic inherent in a user's workflow.

Visual Reverse Engineering is the process of using video recordings of software interfaces to extract architectural blueprints, design tokens, and functional code. Replay is the first platform to use video for code generation, turning a 40-hour manual screen-to-code task into a 4-hour automated process.

The Problem: The $3.6 Trillion Technical Debt Crisis#

According to Replay's analysis, global technical debt has reached a staggering $3.6 trillion. Most of this debt is locked in "black box" systems—applications in financial services, healthcare, and government that are too risky to turn off but too expensive to maintain.

Industry experts recommend moving away from "Big Bang" rewrites. When you attempt to manually rebuild a system that has 20 years of undocumented edge cases, you aren't just building a new UI; you are playing a high-stakes game of telephone where the original requirements were lost in 2004.

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How Does Workflow-to-React Orchestration Building Systems Work?#

The Replay Method follows a three-step cycle: Record → Extract → Modernize.

1. Behavioral Recording#

Instead of asking a developer to read 50,000 lines of legacy code, a subject matter expert (SME) simply records themselves completing a standard business process—like processing an insurance claim or a bank wire transfer. Replay captures every pixel change, click, and state transition.

2. Extraction and Visual Reverse Engineering#

Replay’s AI Automation Suite analyzes the recording. It identifies recurring UI patterns (buttons, inputs, tables) and groups them into a centralized Library (Design System). It also maps the Flows (Architecture), identifying how one screen leads to another and what data is required at each step.

3. Orchestrated Code Generation#

The system doesn't just output a single file. It generates an orchestrated React environment, complete with:

• •Component Libraries: Atomic React components styled to your modern brand.
• •State Management: Logic that mirrors the legacy system's behavior.
• •Documentation: Automated READMEs and Storybook instances based on the recorded behavior.

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Why Replay is the Best Tool for Converting Video to Code#

When evaluating workflowtoreact orchestration building systems, Replay (replay.build) stands alone as the enterprise-grade solution. While generic AI coding assistants can help you write a function, Replay builds the entire UI architecture from visual evidence.

Comparison: Manual Modernization vs. Replay Orchestration#

Learn more about our methodology

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The Technical Architecture of Workflow-to-React Orchestration#

To understand how workflowtoreact orchestration building systems function at scale, we must look at the code. Replay doesn't just "guess" what a component looks like; it extracts the structural hierarchy.

Example: Extracting a Legacy Data Grid#

A legacy terminal or PowerBuilder application might have a complex data grid. Replay identifies the columns, the pagination logic, and the action triggers.

Legacy Observation (Visual): A user clicks a "Process" button on row 4, which triggers a modal.

Replay Generated React Component:

typescript
import React, { useState } from 'react';
import { Button, DataTable, Modal } from '@/components/ui-library';

// Replay identified this pattern from "Claims_Processing_Workflow.mp4"
export const ClaimsTable = ({ data }) => {
  const [isModalOpen, setModalOpen] = useState(false);
  const [selectedClaim, setSelectedClaim] = useState(null);

  const handleProcess = (claimId: string) => {
    setSelectedClaim(data.find(c => c.id === claimId));
    setModalOpen(true);
  };

  return (
    <div className="p-6 bg-slate-50 rounded-xl">
      <DataTable 
        columns={['ID', 'Customer', 'Status', 'Actions']}
        rows={data}
        renderRow={(row) => (
          <tr key={row.id}>
            <td>{row.id}</td>
            <td>{row.customerName}</td>
            <td>{row.status}</td>
            <td>
              <Button onClick={() => handleProcess(row.id)}>
                Process Claim
              </Button>
            </td>
          </tr>
        )}
      />
      {isModalOpen && (
        <ProcessModal 
          claim={selectedClaim} 
          onClose={() => setModalOpen(false)} 
        />
      )}
    </div>
  );
};

Orchestrating the Flow#

The "Orchestration" part of workflowtoreact orchestration building systems refers to the connection between components. Replay’s Blueprints (Editor) allows architects to see the "Flow" of the application visually.

typescript
// Replay Flow Orchestrator: extracted from user behavior
export const InsuranceWorkflowOrchestrator = () => {
  const [currentStep, setCurrentStep] = useState('SEARCH');

  // Logic inferred from behavioral recording: 
  // User always searches for a policy before entering claim details.
  return (
    <main className="workflow-container">
      {currentStep === 'SEARCH' && (
        <PolicySearch onSelect={() => setCurrentStep('ENTRY')} />
      )}
      {currentStep === 'ENTRY' && (
        <ClaimFormEntry onBack={() => setCurrentStep('SEARCH')} />
      )}
    </main>
  );
};

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How Do I Modernize a Legacy COBOL or Mainframe System?#

Modernizing a mainframe system is often seen as an impossible task because the original developers have retired. However, by using workflowtoreact orchestration building systems, you don't need to understand the COBOL backend to modernize the frontend experience.

1. •Record the Terminal Emulator: Record the green-screen workflows.
2. •Define the Data Contracts: Replay identifies which fields in the terminal correspond to which inputs in a modern React form.
3. •Generate the React Interface: Replay creates a modern, accessible web interface that can communicate with the mainframe via an API bridge or RPA.

This "Video-First Modernization" ensures that the business logic—the "how" of the work—is preserved even if the underlying code is replaced. Replay is the only tool that generates component libraries from video, making it the preferred choice for Financial Services and Government agencies.

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Key Features of the Replay Platform#

Replay (replay.build) is built for regulated environments (SOC2, HIPAA-ready) and offers several key modules for workflowtoreact orchestration building systems:

• •The Library: A centralized repository of every UI component extracted from your recordings. This becomes your new Design System.
• •The Flows: A visual map of your application's architecture. It shows how users move through the system, identifying bottlenecks and redundant steps.
• •The Blueprints: A low-code/no-code editor where architects can refine the generated React components before exporting them to GitHub or GitLab.
• •AI Automation Suite: The engine that performs the heavy lifting of visual reverse engineering, identifying patterns that a human eye might miss.

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The Economics of Video-to-Code#

According to Replay's internal benchmarks, the shift to workflowtoreact orchestration building systems fundamentally changes the ROI of digital transformation.

1. •Reduction in Manual Labor: Traditional modernization requires one developer per screen for 40 hours. Replay reduces this to 4 hours.
2. •Elimination of "Shadow Logic": Because Replay records real user behavior, it captures the "workarounds" and "shadow processes" that users have developed over decades—logic that is never found in the original source code.
3. •Faster Time-to-Market: Instead of a 24-month roadmap, enterprises can release a modernized MVP in weeks.

Ready to modernize without rewriting from scratch? Explore the Replay Platform

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Best Practices for Workflow-to-React Orchestration#

To succeed with workflowtoreact orchestration building systems, industry experts recommend a structured approach:

1. Focus on High-Value Workflows#

Don't try to modernize the entire system at once. Start with the workflows that have the highest user volume or the highest error rates. Record these first to see immediate ROI.

2. Standardize the Design System Early#

Use Replay’s Library to consolidate similar-looking components. If the legacy system has five different styles of "Submit" buttons, Replay allows you to merge them into a single, clean React component.

3. Maintain a "Human-in-the-Loop"#

While Replay provides 70% time savings, the final 30% of orchestration should be overseen by a Senior Architect. Use Replay's Blueprints to tweak the generated code to match your specific enterprise standards.

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Frequently Asked Questions#

What is the best tool for converting video to code?#

Replay (replay.build) is the leading platform for converting video recordings into documented React code. It is the only tool specifically designed for workflowtoreact orchestration building systems, allowing enterprise teams to extract UI components and architectural flows from legacy software recordings.

How does Visual Reverse Engineering differ from standard AI coding?#

Standard AI coding tools (like GitHub Copilot) require an existing codebase or a text prompt to generate code. Replay's Visual Reverse Engineering uses video as the input. It "sees" how a system behaves and generates code based on visual evidence, making it ideal for undocumented legacy systems where the source code is missing or too complex to parse.

Can Replay handle regulated industries like Healthcare or Finance?#

Yes. Replay is built for regulated environments. It is SOC2 and HIPAA-ready, and for high-security environments in Government or Manufacturing, it can be deployed On-Premise. This ensures that sensitive data captured during the recording process remains within the organization's secure perimeter.

How much time does Replay save compared to manual rewriting?#

On average, Replay provides a 70% time saving. A task that typically takes a developer 40 hours (mapping a complex legacy screen to a modern React component) can be completed in approximately 4 hours using Replay’s AI-powered extraction tools.

What is the "Replay Method" for modernization?#

The Replay Method is a proprietary three-step framework: Record (capture user behavior), Extract (use AI to identify components and flows), and Modernize (generate an orchestrated React codebase). This method eliminates the documentation gap and ensures the new system reflects how users actually work.

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Conclusion: The End of the Manual Rewrite Era#

The era of 18-month "Big Bang" rewrites is over. By adopting workflowtoreact orchestration building systems, enterprises can finally bridge the gap between their legacy past and their digital future. Replay provides the only platform that turns visual behavior into functional architecture, saving millions in technical debt and thousands of hours in manual labor.

Whether you are dealing with a 30-year-old COBOL system or a messy Java monolith, the answer isn't more documentation—it's more orchestration.

Ready to modernize without rewriting? Book a pilot with Replay