Integration and orchestration middleware plays a vital role in connecting different applications, systems, and services within and across organizational boundaries. It serves as the connective fabric that holds together fragmented systems to enable seamless data and process integration.
Key Components of Middleware
There are three key components that make up Integration & Orchestration Middleware- integration middleware, message broker, and orchestration engine.
Integration Middleware
Integration middleware provides the infrastructure required to connect disparate applications. It handles data transformation, mapping, and moving data between systems using pre-defined integration patterns like messaging, file transfer, API integration etc. Common integration platforms include enterprise application integration (EAI), ESB, iPaaS.
Message Broker
A message broker sits between interfaces to ensure reliable delivery of messages between applications and systems. It decouples systems, provides buffering and queuing capabilities, implements publish-subscribe patterns for async communication. Popular message brokers include IBM MQ, Apache ActiveMQ, RabbitMQ etc.
Orchestration Engine
An orchestration engine centrally manages multi-step workflows and business processes by sequencing integration operations, error handling, tracking process state etc. It coordinates interactions between people, systems and services. Common orchestration platforms are BPM suites, workflow engines like jBPM, Camunda.
Benefits of Middleware
There are several benefits that organizations obtain by adopting integration and orchestration middleware:
- Increased Interoperability — Middleware eliminates information silos and enables seamless data exchange between legacy and modern applications.
- Central Integration Hub — It acts as a central point of control for all integration tasks rather than having multiple point-to-point integrations.
- Scalability — Middleware scales easily to handle growing volume of transactions and supports new integration requirements.
- Decoupling Systems — Message brokers promote decoupling of producer and consumer systems for loose coupling.
- Reusability — Common interfaces and services can be reused across multiple integrations for better code management.
- Lower TCO — Over time, middleware reduces maintenance costs compared to custom code-based integrations.