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💻 '''Software architecture''' in the insurance industry refers to the high-level structural design of the technology systems that underpin [[Definition:Policy administration system | policy administration]], [[Definition:Claims management | claims handling]], [[Definition:Underwriting | underwriting]], [[Definition:Billing | billing]], [[Definition:Reinsurance | reinsurance]] accounting, and customer engagement. It defines how components — databases, application services, user interfaces, [[Definition:Application programming interface (API) | APIs]], and external integrations — are organized, how they communicate, and how they scale. Because insurers and [[Definition:Managing general agent (MGA) | MGAs]] must process high volumes of complex, regulated transactions while maintaining [[Definition:Data security | data security]] and [[Definition:Regulatory compliance | regulatory compliance]], architectural decisions carry outsized consequences that ripple through the business for years.

🔩 Modern insurance platforms increasingly adopt microservices and event-driven architectures rather than the monolithic designs that dominated legacy core systems. In a microservices approach, discrete capabilities — [[Definition:Rating engine | rating]], document generation, [[Definition:Bordereaux | bordereaux]] processing, [[Definition:Fraud detection | fraud detection]] — run as independent services that communicate through APIs or message queues. This modularity allows an [[Definition:Insurtech | insurtech]] or carrier to update its [[Definition:Pricing model | pricing engine]] without redeploying the entire platform, or to integrate a third-party [[Definition:Telematics | telematics]] feed without rewriting core logic. Cloud-native architectures hosted on platforms such as AWS, Azure, or Google Cloud have become standard for new entrants, while established carriers often pursue a "strangler fig" migration pattern — gradually replacing legacy modules with modern services rather than attempting a risky full-system cutover. Architectural choices also determine how easily a company can comply with data-residency rules under regimes like the EU's [[Definition:General Data Protection Regulation (GDPR) | GDPR]] or China's data-localization requirements.

🏗️ The strategic importance of software architecture goes well beyond IT departments. An insurer's ability to launch new [[Definition:Insurance product | products]] quickly, connect to [[Definition:Distribution channel | distribution partners]] via APIs, and harness [[Definition:Artificial intelligence (AI) | artificial intelligence]] for [[Definition:Underwriting | underwriting]] or [[Definition:Claims management | claims]] triage depends directly on the flexibility and coherence of its architecture. Poorly designed systems create technical debt that slows innovation, raises [[Definition:Operating expense | operating costs]], and hampers [[Definition:Digital transformation | digital transformation]] initiatives. Conversely, carriers and MGAs that invest in clean, well-documented architectures gain a durable competitive advantage — they can onboard new [[Definition:Coverholder | coverholders]], enter new geographies, and adapt to regulatory changes with materially lower effort and cost than competitors trapped in legacy monoliths.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Policy administration system]]
* [[Definition:Application programming interface (API)]]
* [[Definition:Digital transformation]]
* [[Definition:Core system modernization]]
* [[Definition:Insurtech]]
* [[Definition:Cloud computing]]
{{Div col end}}

Definition:Software architecture - Revision history

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