- #DRAW SEQUENCE DIAGRAM MOVIE#
- #DRAW SEQUENCE DIAGRAM UPDATE#
- #DRAW SEQUENCE DIAGRAM CODE#
- #DRAW SEQUENCE DIAGRAM SERIES#
#DRAW SEQUENCE DIAGRAM SERIES#
Also see Booch G.,The Unified Modeling Language User Guide, ch 19.A Sequence diagram is a structured representation of behavior as a series of sequential steps over time. Example diagrams from: al/library/3101.html. Money dispenser Screen Keypad Bank computer Etc… Treat each part of the ATM as a class . Draw a sequence diagram for: Getting money from an ATM machine. (If you have time during the exercise, get yourself to your seat.) Start at home, check in at the counter, go through security, and end up at the gate. Draw a sequence diagram for: Getting on a flight. you would do a second diagram for them running over quota. 
For this diagram show the check coming back as acceptable.
#DRAW SEQUENCE DIAGRAM UPDATE#
Login, pick an album, upload a picture, etc… Think about the software classes that would be involved – WebGUI (think of this as reporting what the user does), UserAccount, Album, AlbumList, etc… Don’t forget to check and update their current disk usage. Draw a sequence diagram for: Adding a picture to Flickr (or any online image database).Think of the different classes that would be involved: Queue, Shipping, Inventory, UserAccount, other classes?
#DRAW SEQUENCE DIAGRAM MOVIE#
When you return it a person scan’s it in, the s/w detects that and then goes through a sequence of steps to get the new movie to you.
Draw a sequence diagram for: Returning a movie to Netflix. Don’t forget to open and close things like the jars, and put yourself away, cleanup, etc… Coming up: In class exercise 
I may or may not want the crusts cut off. Draw a sequence diagram for making a peanut butter and jelly sandwich if the following objects are alive: knife, peanut butter jar (and peanut butter), jelly jar (and jelly), bread, plate.
Draw a sequence diagram for: In Beauty and the Beast kitchen items came to life. Arrows Synchronous call (you’re waiting for a return value) – triangle arrow-head Asynchronous call (not waiting for a return) – open arrow-head Return call – dashed line Coming up: In class exercise. #DRAW SEQUENCE DIAGRAM CODE#
Execution bar – bar around lifeline when code is running. Method call lines Must be horizontal! Vertical height matters! “Lower equals Later” Label the lines. Sequence diagrams model object interactions with an emphasis on time ordering. Remember: the goal of UML is communication and understanding. Create sequence diagrams for use cases when it helps clarify and visualize a complex flow. Frequently it is better to create multiple simple diagrams Rarely use options,loops,alt/else These constructs complicate a diagram and make them hard to read/interpret. Synchronous message Asynchronous message Return message Generic (unnamed) Generic (unnamed) objects What does this mean? Do you typically care?Ĭomponents Objects: aStudent is a specific instance of the Student class. Additionally if ActivityA happens before ActivityB, ActivityA must be above activity A Lower = Later! Typically used during analysis and design toĭocument and understand the logical flow of your system Emphasis on time ordering!Īll lines should be horizontal to indicate instantaneous actions. Show time sequences that are not easily depicted in other diagrams. Show concurrent processes and activations. Describe the flow of messages, events, actions between objects. Activity & Swimlane Diagrams Emphasize and show flow of control among objects Coming up: Sequence Diagrams. State Diagrams State machine consisting of states, transitions, events and activities of an object. Sequence Diagrams - emphasize time ordering Communication Diagrams - emphasize structural ordering Interaction Diagrams - Set of objects or roles and the messages that can be passed among them. Dynamic aspects of the system Messages moving among objects/ classes Flow of control among objects Sequences of events Coming up: Dynamic Diagram Types. UML Specifies a number of interaction diagrams to model dynamic aspects of the system.
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