Problems opening SOA to the Online Web Applications
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This document discusses the use of service-oriented architecture (SOA) for web applications. It defines SOA, web services, and services. While SOA aims to increase reusability and agility, its use in web applications can cause problems like latency issues, single points of failure, tight coupling, and difficulties maintaining throughput and service level agreements. These problems can be partially addressed by using an enterprise service bus to reduce single points of failure, but latency remains a difficult problem. An event-driven architecture combined with SOA may help alleviate these issues.
Problems opening SOA to the Online Web Applications
- 1. Problems opening SOA to the Online Web Applications Naresh Chintalcheru
- 2. SOA SOA is an architectural style to promote enterprise business functions as services ● Provides enterprise patterns for systems development and integration ● Supposed to reduce costs and increase agility ● Idea behind using SOA is to build new services using existing services
- 3. Service in SOA ● Service in SOA can be defined as a self-contained, independently developed and maintained reusable software component supporting specific business functions ● Service is not a programming construct or a set of APIs, but is rather an architectural artifact ● Unit of design, implementation, and maintenance used for implementation of enterprise solutions
- 4. Web Service ● Web services are a new breed of Web applications ● A Better RPC and Distributed Component Model ● Reusable software components ● Platform independent application integration using SOAP over HTTP ● Perform better when compared with RMI/IIOP, CORBA or DCOM
- 5. Implementation Enterprises use SOAP & REST based Web Services as “SOA Service”
- 6. SOA & Web Apps Looking from the software engineering perspective ● SOA increases reusability and agility ● Reduce cost of development in the long run
- 7. SOA & Web Apps Looking from the operational perspective
- 8. SOA & Web Apps Problems using SOA in Web Applications ● Latency issues ● Single point of failure ● Tightly coupled ● Maintaining Throughput ● SLA Dependencies
- 13. SOA Web Apps App Client DB Enterprise Service Bus Service Service Service Service
- 14. SOA Web Apps App Client DB Enterprise Service Bus DB Service Service DB Service Service DB
- 15. SOA Web Apps App Client DB Enterprise Service Bus DB Service Service DB Service Service DB
- 16. SOA Web Apps App Client DB Enterprise Service Bus DB Service Service DB Service Service DB
- 17. SOA & Web Apps Problems using SOA in Web Applications ● Latency issues ● Single point of failure ● Tightly coupled ● Maintaining Throughput ● SLA Dependencies
- 18. SOA & Web Apps The single point of failure can addressed by using ESB (Enterprise Service Bus) the latency issue a difficult problem to solve. Using SOA + Event-Driven Architecture will alleviate the problems caused by SOA. Look at my EDA Presentation on Slideshare.net “Lie Cheat Steal to build Hyper-Fast Applications using Event-Driven Architecture”