Service integration connects distributed software components, APIs, and applications into coherent business processes. It covers interface design, messaging, and orchestration strategies to align data flows, transactions, and security across systems. Implementations range from lightweight API composition to enterprise service buses and integration platforms.
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Service integration connects independent services through defined interfaces, messages, or data flows to form a usable end-to-end process.
The concept grew from connecting heterogeneous applications across organizational boundaries. The OASIS Reference Model for SOA describes services as a way to expose capabilities through explicit visibility, interaction, and execution rules.
First identify the business capability being consumed and its contract. Then choose direct API composition, messaging, events, or an integration service. Data mapping, failures, retries, authentication, and transaction boundaries belong to the integration design; network reachability alone is insufficient.
Defines operations, data, errors, and access rules relied upon by provider and consumer.
Adapters, mapping, and routing translate between different interfaces and data models.
Timeouts, retries, idempotency, and observability limit failure propagation across service boundaries.
Service integration makes distributed capabilities usable together while adding coupling to contracts, data models, and availability. Integration is the connecting discipline; orchestration and choreography are coordination patterns that may be used within it.
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