Module 05: Object Oriented (O.o.) Modeling With Uml

Front 1

What is object-oriented (O.O) analysis?

Back 1

Describes an information system by identifying things called objects. Objects include data and processes that can affect the data.

It is an approach used to

1. Study existing objects to see if they can be reused or adapted for new uses

2. Define new or modified objects that will be combined with existing objects into a useful business computing application

Front 2

What are some advantages of object-oriented analysis method?

Back 2

A popular approach that sees a system from the viewpoint of the objects themselves as they function and interact.

It integrates easily with object-oriented programming languages such as Java, Smalltalk, VB.Net, Python, and Perl.

- O-O code is modular, reusable, and easy to maintain.

Front 3

Define the object-oriented term: Object

Back 3

Represents a real person, place, event, or transaction.

- Similar to nouns.

Front 4

Provide three examples of an object.

Back 4

When a patient makes an appointment to see a doctor:

- The patient

- The doctor

- The appointment

Front 5

Define the object-oriented term: Method

Back 5

Tasks or functions that the object performs when it receives a message, or command, to do so.

- Resemble verbs that describe what and how an object does something.

Front 6

Provide three examples of a method.

Back 6

- Your car performs OPERATE WIPERS when you send a message with the wiper control

- APPLY BRAKES when you send a message by pressing the brake pedal

- HONKS HORN when you send a message by pressing on the steering wheel

Front 7

Define the object-oriented term: Class

Back 7

A group of similar objects.

It is like a blueprint,or template for all the objects within the class.

Front 8

Define the object-oriented term: Instance

Back 8

A specific member of a class.

Front 9

Define the object-oriented term: Attribute

Back 9

Characteristics that describe the object.

- Similar to adjectives

Front 10

What is an object model?

Back 10

The end product of object-oriented analysis, which is a representation of the information system in terms of objects and object-oriented concepts.

Front 11

Define Unified Modeling Language (UML).

Back 11

A widely used method of visualizing and documenting an information system.

Front 12

Define the object-oriented term: State

Back 12

Is an adjective that describes the object's current status. (attribute)

Front 13

Define the object-oriented term: Message

Back 13

A command that tells an object to perform a certain method.

Front 14

Define the object-oriented concept: Polymorphism

Back 14

The concept that a message gives different meanings to different objects.

Front 15

Define the object-oriented concept: Encapsulation

Back 15

All data and methods are self-contained.

An example is the black box concept.

Front 16

Define the object-oriented Black Box concept.

Back 16

A message to the object triggers changes within the object without specifying how the changes must be carried out.

Front 17

Define the object-oriented term: Subclass

Back 17

Objects within a class grouped into more specific categories.

Front 18

Define the object-oriented term: Relationship

Back 18

Enable objects to communicate and interact as they perform business functions and transactions required by the system.

Front 19

Define the object-oriented term: Superclass

Back 19

A more general category of a class.

Front 20

Define the object-oriented term: Inheritance

Back 20

Enables an object, called a child, to derive one or more of its attributes from another object, called a parent.

Front 21

Define Object Relationship Diagram.

Back 21

A model diagram that describes the relationships between objects, providing an overview of the system.

Front 22

What is a Use Case?

Back 22

Represents the steps in a specific business function or process.

It is initiated by an actor by requesting the system to perform a function or process.

Represented as an oval in UML with a label that describes the action or event.

Front 23

Define the object-oriented term: Actor

Back 23

It is an external entity who interacts with the information system.

in UML, it is represented as a stick figure with a label that identifies the actor's role.

Front 24

Provide three examples of an actor.

Back 24

1. A CUSTOMER (actor) can MAKE APPOINTMENT (use case)

2. An AGENT (actor) can CREATE SCHEDULE (use case)

3. an EMPLOYEE (actor) can VIEW SCHEDULE (use case)

Front 25

What is a Use Case Description?

Back 25

A table that documents the name of the use case, the actor, a description of the use case, a step-by-step list of the tasks and actions required for successful completion, a description of alternative courses of action, preconditions, postconditions, and assumptions.

Front 26

What is a Use Case Diagram?

Back 26

It is a visual summary of several related use cases within a system or subsystem.

Front 27

What is a Class Diagram?

Back 27

A model diagram showing the object classes and relationships involved in a use case.

Front 28

What is involved in creating a class diagram?

Back 28

You review the use case and identify the classes that participate in the underlying business process.

Front 29

Define the object-oriented term: Cardinality

Back 29

It describes how instances of one class relate to instances of another class.

Front 30

What is a Systems Sequence Diagram?

Back 30

It is a dynamic model of a use case, showing the interaction among classes during a specified time period.

Front 31

What is an Activity Diagram?

Back 31

A model diagram resembling a horizontal flowchart that shows the actions and events as they occur.

They show the order in which the actions take place and identify the outcomes.

Front 32

Explain the difference between an Activity Diagram and a Systems Sequence Diagram.

Back 32

Activity diagrams captures the process flow whereas a systems sequence diagram focuses on the interaction between objects.

Front 33

What is a State Transition Diagram?

Back 33

A model diagram showing how an object changes from one state to another, depending on events that affect the object.

All possible states must be documented.

Front 34

What dynamic modeling tools describe how objects behave and interact with the system.

Back 34

Sequence diagrams

State transition diagrams

Activity diagrams

Front 35

What is Business Process Modelling?

Back 35

It is a modelling diagram that represent the people, events, and interaction in a system.