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

9. Mainframe world
Client
Terminal
App
DB

10. Distributed Web Apps
Client
App
DB

11. SOA Web Apps
Client
App
Services
DB
Services

12. SOA Web Apps
Client
App
Service
DB
Service
Service
Service

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”