Component based design

1. Component Based
Design
Percival Lucena
1

2. Percival Lucena
● MSc Computer Science - USP - 2003
● IBM GBS - 2004- *
IT Architect - AngularJS Hybrid App
● College Professor 2005 - 2015
IBMEC, USF, UNASP
2

3. AGENDA
● Components
● Semantic Components
● Services
● MicroServices
● Component Based Development Model
● Conclusions
3

4. What is a component?
ALLEN, P. - 1997
4

5. Component Based Design
tightly coupled loosely coupled
Manage Complex Systems
5

6. Semantic Components
Percival Lucena - 2003
6

7. INFERENCE ENGINE
Semantic Components
Percival Lucena - 2003
city
7

8. Component
JavaBeans Component Manager
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9. TalkAgent - 2002
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10. TalkAgent - 2002 vision
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11. Services
A service is similar to a component in that it’s used by
foreign applications. The main difference is that I
expect a component to be used locally (think jar file,
assembly, dll, or a source import). A service will be
used remotely through some remote interface, either
synchronous or asynchronous (eg web service)
FLOWER, M - 2004
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12. Service Oriented Architecture
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13. MicroServices - Fine Grained SOA
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14. LAYERED APP
MicroServices - Team Organization
MICROSERVICE APP

15. Smarter ADM - Component Based Development
http://www-935.ibm.com/services/us/gbs/application-management/application-development-management/
define model distribute execute integrate 15

16. Component Integration Process for Smarter ADM
DST Cloud Env
Yellow Zone
Blue Zone Apps
JEE Middleware Test
Environments
Mobile First Test Environments
My Contribution:
Cloud Environment VM
Red Zone
My Contribution:
Component
Standards,
CBD Guidelines
Component
Component
Component
Component
Component
independent
contractor
independent
contractor
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17. Traditional Hybrid Development
Smarter ADM Experience
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18. Pet Project - Watson App
http://percivallucena.com/watsonapp
blue mix middleware Watson blue mix APIibm mobile first
app
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19. Conclusion
● Components can be used to organize complex problems
● Components promote system decoupling
● Components can be developed independently using contract
specifications
● Components promote code reusability
● Components can be used to help scale complex systems
● Components can be replaced
● Components can be tested independently
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20. References
● Allen, P - 1998 - Component Based Design for Enterprise Systems - Cambridge University Press
● Barcia, R Brown K et al - 2014 - Modern Web Development with Websphere - IBM Press
● Flower, M - 2004 - Inversion of Control Containers and the Dependency Injection pattern
online: http://www.martinfowler.com/articles/injection.html
● Lucena, P Moreira, D et al - 2003 - Semantic Agent a platform for the development of Software
Agents - 1st Workshop for Natural Language Processing - online: http://www.nilc.icmc.usp.
br/til/til2003/poster/lucena_moreira_estombelo_20.pdf
● Mueller, E. - Natural Language Processing with Thought Treasure - 2012 - CreateSpace Press
● Newman, S. - Building Microservices, 2015 - O'Reilly Press 23