1. ® IBM Software Group © 2006 IBM Corporation Rational Software France Object-Oriented Analysis and Design with UML2 and Rational Software Modeler 01. Concepts of Object-Orientation

2. IBM Software Group | Rational software Where Are We?  What is Modeling?  Principles of Object-Orientation  The Unified Modeling Language

3. IBM Software Group | Rational software What is a Model?  A model is a simplification of reality  Modeling achieves four aims:  Helps you to visualize a system as you want it to be  Permits you to specify the structure or behavior of a system  Gives you a template that guides you in constructing a system  Documents the decisions you have made  You build models of complex systems because you cannot comprehend such a system in its entirety  You build models to better understand the system you are developing

4. IBM Software Group | Rational software Principles of Visual Modeling  The model you create influences how the problem is attacked  Every model may be expressed at different levels of precision  The best models are connected to reality  No single model is sufficient

5. IBM Software Group | Rational software Model-Driven Development  A natural evolution of object-oriented technologies  The encapsulation of business logic in (UML) models  The use of these models to automate the development of applications, code generation, testing and maintenance ? ?

6. IBM Software Group | Rational software Model-Driven Architecture (MDA)  An architectural style  An OMG initiative http://www.omg.com/

7. IBM Software Group | Rational software Where Are We?  What is Modeling?  Principles of Object-Orientation  The Unified Modeling Language

8. IBM Software Group | Rational software Basic Principles of Object Orientation  Abstraction  Encapsulation  Modularity  Hierarchy

9. IBM Software Group | Rational software What Is Abstraction?  The essential characteristics of an entity that distinguishes it from all other kinds of entities  Depends on the perspective of the viewer  Is not a concrete manifestation, denotes the ideal essence of something From Object-Oriented Analysis and Design with Applications by Grady Booch, 1994

10. IBM Software Group | Rational software What Is Encapsulation?  Hides implementation from clients  Clients depend on interface  Improves the resiliency of the system, i.e. its ability to adapt to change From Object-Oriented Analysis and Design with Applications by Grady Booch, 1994

11. IBM Software Group | Rational software What Is Modularity?  Breaks up something complex into manageable pieces.  Helps people understand complex systems From Object-Oriented Analysis and Design with Applications by Grady Booch, 1994

12. IBM Software Group | Rational software What Is Hierarchy? Decreasing abstraction Increasing abstraction Asset RealEstate Savings BankAccount CheckingStock Security Bond Elements at the same level of the hierarchy should be at the same level of abstraction

13. IBM Software Group | Rational software Where Are We?  What is Modeling?  Principles of Object-Orientation  The Unified Modeling Language

14. IBM Software Group | Rational software What Is the UML?  The UML is a language for  Visualizing  Specifying  Constructing  Documenting the artifacts of a software-intensive system

15. IBM Software Group | Rational software UML Covers All Aspects of Software Development  The UML addresses system architecture, requirements, tests, project planning, and release management Use Case Diagram Actor A Use Case 1 Use Case 2 Use Case 3 Actor B Class Diagram Sequence Diagram user mainWndfileMgr : FileMgr repositorydocument : Document gFile 1: Doc view request ( ) 2: fetchDoc( ) 3: create ( ) 4: create ( ) 5: readDoc ( ) 6: fillDocument ( ) 7: readFile ( ) 8: fillFile ( ) 9: sortByName ( ) ƯÁ¤¹®¼­¿¡ ´ëÇÑ º¸±â¸¦ »ç¿ëÀÚ°¡ ¿äûÇÑ´Ù. È­ÀÏ°ü¸®ÀÚ´Â Àоî¿Â ¹®¼­ÀÇ Á¤º¸¸¦ ÇØ´ç ¹®¼­ °´Ã¼¿¡ ¼³Á¤À» ¿äûÇÑ´Ù. È­¸é °´Ã¼´Â ÀоîµéÀÎ °´Ã¼µé¿¡ ´ëÇØ À̸§º°·Î Á¤·ÄÀ» ½ÃÄÑ È­¸é¿¡ º¸¿©ÁØ´Ù. Deployment Diagram Window95 ¹®¼­°ü¸® Ŭ¶óÀ̾ðÆ®.EXE Windows NT ¹®¼­°ü¸® ¿£Áø.EXE Windows NT Windows95 Solaris ÀÀ¿ë¼­¹ö.EXE Alpha UNIX IBM Mainframe µ¥ÀÌŸº£À̽º¼­¹ö Windows95 ¹®¼­°ü¸® ¾ÖÇø´ ºÐ»ê ȯ°æÀÇ Çϵå¿þ¾î¹× ³×Æ®¿÷À¸·ÎÀÇ Á¤º¸ ½Ã½ºÅÛ ¿¬°á ¸ðµ¨ - À©µµ¿ì 95 : Ŭ¶óÀ̾ðÆ® - À©µµ¿ì NT: ÀÀ¿ë¼­¹ö - À¯´Ð½º ¸Ó½Å: ÀÀ¿ë ¼­¹ö ¹× µ¥ÀÌŸ ¼­¹ö, Åë½Å ¼­¹ö - IBM ¸ÞÀÎÇÁ·¹ÀÓ: µ¥ÀÌŸ ¼­¹ö, Åë½Å ¼­¹ö

16. IBM Software Group | Rational software History of the UML UML 1.0 (Jan. ‘97) UML 1.1 (Sept. ‘97) UML 1.5 (March, ‘03) UML 2.0 (2004) Other Methods Booch ‘91OMT - 1OOSE Booch ’93OMT - 2 Unified Method 0.8 (OOPSLA ’95) UML 0.9 (June ‘96) UML 0.91 (Oct. ‘96) and Current version = 2.1

17. IBM Software Group | Rational software A Language Is Not Enough to Build a System Modeling Language Unified Process Team-Based Development

18. IBM Software Group | Rational software Review  Why do we model?  True or false: A model influences how the problem is attacked.  True or false: A single model is sufficient in most cases.  How do MDD and MDA differ?  What are the four basic principles of object-orientation?  True or false: UML is a method to capture the requirements of the system to be and build a robust design.