Publishing & IdentityUX ModernizationIdentity & AccessSecurityPlatform Engineering

Legacy IAM Frontend Modernization from AngularJS to React

100% feature parity · WCAG 2.1 accessibility · Zero backend changes

Client

Global Publishing Services Company

Region

Global

Key Outcomes

100% feature parity with AngularJSWCAG 2.1 accessibility standard achieved~80% automation coverage on test scripts

Business Challenge

SAMS Sigma, a mission-critical identity and access management platform for publisher, consortium, and individual access, was running on AngularJS 1.x after the framework reached end-of-life. The client needed to remove security exposure, reduce maintenance risk, improve accessibility, and modernize performance without changing the workflows familiar to a large daily user base or touching stable backend APIs.

Solution Overview

DIATOZ delivered a phased module-by-module migration to React, using the legacy AngularJS application as the source of truth for pixel-level parity. Dashboard, Publisher Management, Consortium Management, License Management, Voucher Management, Reports, Configurations, and related modules were rebuilt with accessibility and security guardrails baked in, including Axe and Lighthouse checks, OWASP-aligned frontend practices, CSP and XSS prevention, secure storage patterns, and continuous regression testing.

Architecture & Engineering

React frontend re-platforming with module-by-module parity against AngularJS workflows

Unchanged backend APIs and data contracts to keep migration scope controlled

Accessibility workstream using Axe and Lighthouse for WCAG 2.1 validation

Security hardening with OWASP practices, CSP, XSS prevention, and secure storage patterns

Automated unit, integration, and end-to-end testing across migrated modules

Technology Stack

ReactAngularJSJavaScriptAxeLighthouseOWASPCSPE2E Testing

Business Impact

Retired unsupported AngularJS 1.x risk while preserving the established user experience

Expanded long-term maintainability through React ecosystem and talent availability

Improved accessibility and browser performance for enterprise and institutional users

Enabled a smooth transition with UAT sign-off, documentation, hyper-care, and knowledge transfer

Why DIATOZ

DIATOZ treated modernization as both an engineering and change-management problem: invisible to users where it needed to be, materially stronger under the hood where it mattered.