Decoupling a Monolith to Power Scalable Healthcare Innovation

A leading healthcare provider in India, headquartered in Delhi, it operates 22 hospitals with over 5,000 beds, delivering comprehensive medical services across the country.

The Problem Statement

The healthcare provider relied on a massive monolithic application that tightly coupled core systems. Any update risked breaking critical functions, scaling was inefficient, and new features required navigating complex dependencies, slowing innovation and creating significant operational risk.

Challenges

Tightly Coupled Systems

Direct dependencies meant changes in one system easily broke another.

High Operational Risk

Even minor updates created downtime threats across critical healthcare applications.

Inefficient Scaling

Entire monolith scaled together, driving unnecessary costs and resource inefficiencies.

Slow Feature Delivery

Complex dependencies delayed development, stalling innovation and digital transformation.

Fragile Architecture

Brittle integrations reduced system resilience, impacting reliability and patient safety.

Limited Agility

Inability to adopt modern microservices restricted growth and future readiness.

Solutions

Event-Driven Architecture

Introduced Azure Event Hubs to replace brittle point-to-point system connections.

Decoupled Communication

Enabled systems to exchange events asynchronously, reducing direct dependencies and risks.

Microservices Enablement

Allowed new services like Billing to subscribe independently without monolithic constraints.

Gradual Migration

Adopted a phased decoupling strategy, avoiding a risky big-bang transformation.

Kafka Compatibility

Leveraged Kafka protocol for reliable, high-throughput event streaming across healthcare operations.

Future-Ready Foundation

Built scalable, resilient architecture supporting rapid innovation and evolving healthcare needs.

Outcomes

Kafka Topic Architecture

Architected a Kafka topic design to handle 126 different event types with a throughput of 1,000 events per second for each type.

Complete Decoupling

Monolithic system dismantled into independent services, enabling safer updates and streamlined operations.

Improved Resilience

Service failures are contained with event hub buffering messages until recovery, ensuring uninterrupted workflows.

Accelerated Innovation

Teams deliver new features 2x faster by connecting microservices directly to event hub streams.

Scalable Operations

Architecture now supports massive healthcare data volumes without costly, inefficient system-wide scaling.

Future Readiness

Built a strong digital foundation empowering continuous growth, adaptability, and innovation in patient care.

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