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UML for Domain Models

(Reference: Jason Roff – UML Beginner’s Guide). UML for Domain Models. Grady Booch , Ivar Jacobson, Jim Rumbaugh Standard method of creating diagrams and modeling system architectures There are 14 Diagrams Types 7 Diagram Types are “Structural” 7 Diagram Types are “Dynamic”.

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UML for Domain Models

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  1. (Reference: Jason Roff – UML Beginner’s Guide) UML for Domain Models

  2. Grady Booch, Ivar Jacobson, Jim Rumbaugh • Standard method of creating diagrams and modeling system architectures • There are 14 Diagrams Types • 7 Diagram Types are “Structural” • 7 Diagram Types are “Dynamic” Universal Modeling Language (UML)

  3. Box • Top section is class name • Second section is class attributes (data members) • Third section is class member functions • Notation • + public access • - private access • # protected access Classes

  4. A UML Class Diagram for Course Course -enrollmentLimit -nEnrolledStudents -startTime -endTime -instructor +getInstructor() +getStartTime() +getDuration()

  5. Attribute Format -enrollmentLimit:Integer = 20 -nEnrolledStudents: Integer=0 -startTime: Date -endTime: Date -instructor: String -meetingDays[1..7]: Integer -/meetingHoursWeek:float

  6. Show relationships with line and association name. Class Relationships teaches > Professor Course takes > Student

  7. Multiplicity teaches > Professor Course 1 1..* Professors teach 1 or more courses. Courses have exactly one professor.

  8. Roles teaches > Instructor Professor Course 1 1..* 0..* Teaching Assistant Graduate Student grades > 0..*

  9. Objects are differentiated from class with an underline and a class name qualifier Class Instances (OBJECTS) Course:Cs350 -enrollmentLimit = 20 -nEnrolledStudents = 24 -startTime : 14:00 -endTime: 14:50 -instructor: Ribler

  10. Empty arrow points to base class (superclass) from derived class (subclass) Inheritance (Empty Arrow) Person Student Tutor Professor Teaching Assistant

  11. Composition and Aggregation Car Class List Class Engine Class Sprite Class Composition is expressed with a filled diamond. Aggregation is expressed with a unfilled diamond.

  12. Model workflows for use-cases (analysis) Model object behavior (design) Activity Diagrams

  13. Symbols Start Symbol End Symbol Activity Symbol (contains action name) Name of Action Decision Points

  14. GuArds With Decision Point [new file] [file already exists] Create File Update File

  15. Guard without Decision Point Record Data [new file] [file already exists] Create File Update File

  16. Indicators that an action has taken place Events and Triggers Print File Print(File, Printer) SaveAs(Filename) Ready Save File CreateNew(Filename) Create New File

  17. Show concurrency Forks Login Load Grades Load Classes

  18. JOins Load Grades Load Classes Display Data

  19. Swim Lanes POS System Telephone Operator Database Wrapper Purchase() Display Error Display Error Determine Type Load Inventory Store Inventory Change Inventory [failure] [failure]

  20. Model interaction between active objects • Consist of two components • Active objects • Interactions between active objects Sequence DIagrams SpaceShip Shoot

  21. “LiFElines” Indicate Active Objects SpaceShip UFO Shoot X X indicates the end of the objects life.

  22. Conditions Can be Placed on Messages Indicate Active Objects SpaceShip UFO [UFO in Range] Issue Warning

  23. Synchronous – Flow is suspended until return from the call. (filled arrow head) Return – Synchronous message is no longer blocked. Asynchronous – Non-blocking message. Sender doesn’t wait for reply. Flat – synchronization is unspecified. Message Arrows

  24. Creating and Destroying Objects SpaceShip Missile <<create>> <<destroys>> X

  25. Sequence Diagrams use Rounded Rectangles to indicate State SpaceShip UFO [UFO in Range] Issue Warning Under Threat Surrender Taken Prisoner Imprisoned

  26. Branching SpaceShip UFO Asteroid [at peace] shoot [in alien war] shoot

  27. Users can be drawn As Stick Figures ATM Login Logged in Prompt for transaction type

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