The document discusses component based design and microservices. It introduces components, semantic components, services, and microservices. It describes how component based development can be used to organize complex problems, promote decoupling of systems, and help scale applications. Components can be developed independently and replaced or tested individually. The document concludes that components help make systems more modular, reusable, and manageable.

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
8

9. TalkAgent - 2002
9

10. TalkAgent - 2002 vision
10

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
11

12. Service Oriented Architecture
12

13. MicroServices - Fine Grained SOA
13

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
16

17. Traditional Hybrid Development
Smarter ADM Experience
18

18. Pet Project - Watson App
http://percivallucena.com/watsonapp
blue mix middleware Watson blue mix APIibm mobile first
app
21

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
22

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