System Integration: APIs, Events, and AI Service Boundaries
REST, GraphQL, event-driven middleware, and early RAG pipelines kept ERP, CRM, and custom apps aligned in 2023's integration programmes.
Most organisations in 2023 did not lack software — they lacked coherent data flow between systems. Integration projects turned isolated ERP, CRM, warehouse, and SaaS tools into a single operational picture without manual re-entry.
Integration styles
REST APIs remained the workhorse for synchronous calls. GraphQL helped mobile and web clients fetch exactly what they needed. High-volume flows used Azure Service Bus, RabbitMQ, or Kafka with retry and dead-letter handling so failures were visible, not silent.
Connecting AI services
Early RAG adoption added new integration paths: vector stores, document ingestion pipelines, and guarded calls to Azure OpenAI or private model endpoints. Versioned contracts and sandbox environments prevented production surprises when vendors upgraded.
Governance that scaled
OpenAPI documentation, latency monitoring, and error-rate dashboards mattered as much as application uptime. The best programmes mixed iPaaS for commodity connectors with engineered middleware for domain-specific rules.
PrequaliQ builds integration layers that respect your existing investments — Oracle, Salesforce, .NET services, and modern SaaS — without forcing a rip-and-replace strategy.