UML

Question 1

Object Management Technique

Answer 1

OMT
Class Model Diagram - Structural aspects
State Chart Diagram - Behavioral aspects
Data Flow Diagram - Functional aspects

Question 2

Unified Modeling Language

Answer 2

UML

The array of Techniques (like OMT) coming out led to an initiative to Unify them all.

Question 3

Object Management Group

Answer 3

Group which standardized UML

Question 4

CASE tools

Answer 4

Computer Aided Software Engineering

Tools that help software engineers do their work quicker and more efficiently

Question 5

The Three Amigos

Answer 5

Rumbaugh, Booch, Jacobson

Question 6

How many types of Diagrams does UML version 2 have?

Answer 6

14

Question 7

Two Main Categories of Diagrams

Answer 7

Structural and Behavioral

Question 8

Structural Diagrams

Answer 8

Give you the pieces of the system that are always there, and the relationships among them

Question 9

Behavioral Diagrams

Answer 9

Concerned with the executions of the system, and a particular diagram may only convey one execution (you may need more than one to get the big picture)

Question 10

Benefits of Diagrams

Answer 10

Enhances communication, supports existing methods, and there is CASE tool support

Question 11

What is the most popular UML diagram?

Answer 11

Class Diagram

Question 12

Class Diagram

Answer 12

aka Static Models
Shows the Classes in a proposed software system and their relationships to other Classes.
Demonstrates structural properties.

Question 13

UML Classes

Answer 13

Rectangular illustration that contains a Class’ name, its properties, the properties’ types, the operations that Class has, and the operations’ return types

Question 14

UML: Dashed Direct Line

X - - - - - > Y

Answer 14

Dependency

X uses Y

Question 15

UML: Soluid undirected line

X ———– Y

Answer 15

Associations

X affects Y

Question 16

UML: Solid line with large, open arrowhead

X ———-> Y

Answer 16

Generalization

X is a kind of Y

Question 17

Class Diagram vs Object Diagram

Answer 17

Basically the same, except instead of Classes they mention instances and specific properties they may have.

(Label is Underlined string such as c : Company, mentioning the instance and the Class.
Properties have example values here)

Question 18

Composite Structure Diagram

Answer 18

Conveys internal Structure of a class.

• Rectangular Card-like
• Class name on the left upperhand side.
• Class is a square in the middle
• Circle connected via line to class shows what Interface Class Provides
• Half circle connected via line to class shows what Interface Class Requires
• Rectangle on inside of class

Question 19

Component Diagram

Answer 19

Static implementation view of how the components of a system fit together and interact.

Models Code Entities (like binaries)
(Depicts that one of the components uses a service of a another component)

Question 20

Deployment Diagram

Answer 20

Configuration of the run-time processing nodes and the component instances and objects that live on them.

Question 21

Nodes in Deployment Diagrams

Answer 21

Denotes a Computational Device

Question 22

Arcs in Deployment Diagrams

Answer 22

Indicate communications

Question 23

Packages in UML

Answer 23

General purpose organizing mechanisms

Provides namespace scoping so that each package can have its own set of names

Dependency arrows between packages indicate dependencies between constituents.
System is the

Question 24

What is the Top-Level package in UML?

Answer 24

System

Question 25

Dashed Line in Package Diagram | X - - - - - > Y

Answer 25

Indicates a Dependency-On | X Depends-On Y

Question 26

Solid Line w/ White Arrowhead in Package Diagram | X ----------|> Y

Answer 26

``` Indicates a Subclass-Of X is a Subclass of Y ```

Question 27

Profile Diagram

Answer 27

Diagram which extends UML's capabilities via allowing users to Markup UML with custom definitions and icons.

Question 28

Which UML Structure diagrams could be used to convey system architecture?

Answer 28

Class, Component, Deployment, Package

Question 29

Use Case

Answer 29

Sequence of User-Visible actions along with system responses. May be conveyed with unstructured text or in a table

Question 30

Use Case Diagram

Answer 30

Depicts the relationship among system actors and use cases. | Useful for eliciting system requirements and organizing development activities

Question 31

Stick Figures in a Use Case Diagram

Answer 31

External Actors - Users - External Systems

Question 32

Ovals in a Use Case Diagram

Answer 32

Use Cases

Question 33

Lines w/out annotations in a Use Case Diagram

Answer 33

Indicate Participation | Actor at one end is involved in the Use Case

Question 34

What are the two annotations available in Use Case diagrams?

Answer 34

<> and <> | stereotype support factoring

Question 35

Use Case Tabular Structure

Answer 35

Actor | Action | Object ----------+-------------+------------------------- Foster | browses | Amazon website

Question 36

Context Diagrams

Answer 36

NOT PART OF UML but provide interesting capabiities Provide a "different view" Depict processes, actors, and the datafows among them.

Question 37

Sequence Diagram

Answer 37

Conveys a single use case, and shows participants as columns with arrows pointing from one participant to another to show what actions they are performing or being performed on sequentially

Question 38

Communication Diagrams

Answer 38

Object diagram annotated with ordered interactions instead of links Semantically equivalent to Sequence Diagram Rectangles are connected by lines to indicate interaction, but only a single line between them. Lines are annotated with different communication steps performed, prepended by number execution step.

Question 39

Activity Diagram

Answer 39

Variant of a state machine where multiple states may be simultaneously active Transitions are triggered by activity completion models workflows, synchronization in processes, and concurrency

Question 40

Timing Diagram

Answer 40

More granular than Activity Diagram, this has a Process-over-time feel with specific ticks for specific times. Processes have lines moving horizontally from left to right indicating different exact times processes should complete tasks rotated sequence diagram

Question 41

State Diagram

Answer 41

Most Powerful and Most Complex aka State Charts Extended finite state machines, aggregation, currency, etc

Question 42

Object Constraint Language

Answer 42

Textual extension to UML's visual notation It's UML Markup Applicable to Class and Statechart First-order predicate logic Diagram navigation collection classes Enables more precision ``` context Account::deposit(Real : amount) pre: amount > 0 post: balance = balance@pre + amount ```

Question 43

UML Metamodel

Answer 43

Definition of UML in UML (UML description of UML) Can be extended by a modeler using profiles [diagram] Can add constraints on the diagrams themselves STUDY THE DIAGRAM