利用事件驱动架构大规模现代化改造传统应用程序.pdf

1、 2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.A P I 2 0 7Using event-driven architectures to modernize legacy applications at scaleSrinivas SeeramAnand Bilgaiyan(he/him)Platform Architecture LeadPhilips Healthca

2、re(he/him)Enterprise Transformation Specialist,Sr.Partner Solutions ArchitectAmazon Web Services 2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.Agenda1.Why Event Driven Architecture2.Philips case study 3.EDA patterns4.Philips solution 2025,Amazon Web Services,Inc.or its affiliate

3、s.All rights reserved.2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.What is Event Driven Architecture?2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.Event-driven architecturesAn architectural style of building loosely-coupled software systems that work togeth

4、er by emitting and responding to events.5 2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.Asynchronous EventsEvent A Immutable fact&signal that a systems state has changed.Something that a domain expert cares about.DeviceRegisteredFilesReceivedSecurityAlertReceived 2025,Amazon Web

5、 Services,Inc.or its affiliates.All rights reserved.Events are self-contained&carry necessary contextMultiple ways receive/fetch/respondComponents dont callone another directly hence EDAs are mostly asynchronousIts a mindset,not a list of technologiesArchitectural styleLoosely coupledEvent AutonomyS

6、ystems emit and respond to eventsEvent-driven architectures-Properties 2025,Amazon Web Services,Inc.or its affiliates.All rights reserved.8Loose coupling&AgilityScalabilityResilienceManagingIntegration complexityBenefits of event-driven architectures 2025,Amazon Web Services,Inc.or its affiliates.Al