Birlasoft reduces understanding and maintenance effort with application maps

CAST Imaging enabled Birlasoft to automatically map a complex legacy codebase and produce up-to-date documentation of its inner workings, speeding onboarding and impact analysis while making changes safer.

Challenge

Birlasoft supported a global producer of pump systems facing mounting delivery risks from a legacy, poorly documented codebase. Critical knowledge resided with few engineers, creating support bottlenecks and slowing change.

The business needed greater agility to introduce key features quickly, but lacked clear visibility into business logic, end-to-end call flows, and impacted objects. Rapid comprehension of the codebase became essential to restore velocity and reduce risk.

Solution

Birlasoft leveraged CAST Imaging to automate code understanding and produce living maps of the legacy estate. A graph-based architecture map captured modules, layers, and dependencies, creating a navigable blueprint of the system.

Interdependency analysis exposed relationships across services and data. End-to-end call-flow views and object drill-downs enabled detailed, targeted exploration of business logic and precise impact scoping for change requests.

Results

Impact was immediate: impact-analysis effort dropped by ~70%, shrinking from 55 – 67 man-days to 13 – 19. Activities that once spanned roughly three months were finished in 10 – 15 days.

Living software knowledge accelerated onboarding and documentation, made change scoping safer, and energized modernization initiatives. Teams now share a single source of truth for dependencies, call flows, and affected objects, enabling faster reviews, clearer handoffs, and consistently higher delivery confidence.