1. DATA MODELING AND eXERDR&D Center in Tomato System 2. LIST1. Data Modeling 2. Data Base Modeling 3. Data Base Modeling Tool 4. eXERD 3. COMPUTING Realize the problems of reality. Reconstitute and solve problems with the computer. Revert added value of solved problems to reality. 4. COMPUTING: CONTINUE How long does it take from Seoul to Busan By a car? It takes 4.3 hours! 5. DATA MODELING? simplify, visualize, document information of reality for computerization, is todeciding the scope of UML, ERD, CRC ERD is one of notation.(?)abstraction 6. ABSTRACTION: INFORMATION CHOICE Abstraction is the process of deleting differences for emphasis on commons, Hiding unimportant parts or not interesting objects, Including the distinguishing parts from other objects. -Dictionary of Object Technology (Firesmith, Eykholt, 1995) Entity: Marine Stamina Defensive Power Attack Power Shooting Range Annual Salary? Age? Family History? 7. ABSTRACTION: THE BASIS OF ACTIVITIES IF DISTANCE_WITH_ENEMY < ATTACK_RANGE THEN ENEMY.HP = ENEMY.HP ATTACK_DAMAGE ENDIF Modeling justifies the form of problems and results which business logic should solve. 8. ABSTRACTION: DISTORTION 9. ABSTRACTION: VIEWPOINT 10. ABSTRACTION: RELATIONS Personal information Name Age Phone Name of Name of Name of Name ofa mother in law a father in law a wife childrenfatherwife childrenmother 11. MODELING: SUMMARYSelecting data suited for duties(domain) Change data to be suited more for duties Each entities compose the cooperation relation for duties 12. DATABASE MODELING How is data preserved in the computer? Which data phase is suitable for problem solution? Is it working fast in actual data base? Is it assured of matching? 13. DATA MODELING TOOL The drawing language of database modeling, the tool to draw ERD And? Engineering, Reverse Engineering Pursue matching Access to specialized function for database eXERD? It offers practical working environment for everyone 14. DATABASE MODELING TOOLS IN KOREAERwin Dataware (Old ver. DA#) eXERD 15. PRICING 16. ERWIN: THE REASON WHY IT IS EXPENSIVE There are too many functions of details. Its designed for experts.Monopolistic position De Facto 17. eXERD? The modeling tool for 99% people Low expense of education markedly Mechanism to prevent mistakes Sensible exchange of data with animation Integrates tools(Eclipse) Reasonable price Humanism Joys Excludes mechanical and repetitive works Automates styling works Inline editing: it excludes works to be needed with your mouse and keyboard at the same time. 18. DEMO 19. USERS FEEDBACK It makes me smile while Im working busyIm surprised that Korean development tool based on mac has high quality I feel thankful for making this brilliant tool Im embarrassed of my thoughts that developers have to use famous and expensive ERD tools. Thanks a lot, it wakes me up to rethinkI would pay your tribute of praise to encouraging first step 20. THANK YOU