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📋 '''System integration''' is the process of connecting disparate technology platforms — [[Definition:Policy administration system | policy administration systems]], [[Definition:Claims management system | claims management systems]], [[Definition:Billing system | billing engines]], [[Definition:Data warehouse | data warehouses]], and third-party services — so they function as a cohesive operational whole within an [[Definition:Insurance carrier | insurance organization]]. Given that a typical carrier or [[Definition:Managing general agent (MGA) | MGA]] may rely on dozens of specialized applications, many of them legacy, integration is one of the most consequential and technically demanding challenges in insurance technology.

⚙️ Modern integration approaches in insurance range from point-to-point [[Definition:Application programming interface (API) | API]] connections to enterprise-wide middleware platforms and event-driven architectures. When a [[Definition:Policyholder | policyholder]] binds a new policy, for instance, the integration layer must orchestrate data flows between the quoting engine, the [[Definition:Underwriting | underwriting]] workbench, the document generation service, the [[Definition:Reinsurance | reinsurance]] cession module, and the accounting system — often in near real time. [[Definition:Insurtech | Insurtech]] vendors frequently position themselves as API-first solutions, but plugging them into a carrier's core stack still requires mapping data fields, handling format mismatches, and ensuring transactional integrity across systems that may have been built decades apart. Large-scale integration programs, such as those accompanying a core-system replacement or a [[Definition:Merger and acquisition (M&A) | post-merger]] technology consolidation, can span years and consume significant capital.

💡 Poorly executed integration is behind many of the insurance industry's most visible operational failures — from delayed [[Definition:Insurance claim | claims]] payments caused by data not flowing between adjudication and finance systems, to [[Definition:Regulatory reporting | regulatory reporting]] errors triggered by inconsistent data across platforms. Conversely, well-architected integration unlocks the agility insurers need to launch new products quickly, onboard [[Definition:Distribution channel | distribution partners]] efficiently, and deliver the seamless digital experiences that customers increasingly expect. For [[Definition:Insurtech | insurtechs]] selling into the carrier ecosystem, the quality of integration tooling — clean APIs, comprehensive documentation, sandbox environments — often determines adoption speed more than the brilliance of the core product itself.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Application programming interface (API)]]
* [[Definition:Policy administration system]]
* [[Definition:Legacy system]]
* [[Definition:Middleware]]
* [[Definition:Digital transformation]]
* [[Definition:Data migration]]
{{Div col end}}

Definition:System integration - Revision history

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