COPY: Business Actors Identification

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Which of these questions is not part of the questions part asked when identifying business actors?

Where are the business actors located?

When were the business actors identified?

Who are the business actors?

What are the main tasks of the actor? (correct)

What is the external entity used for?

External entities in a Data Flow Diagram (DFD) represent objects outside the system being modeled that interact with the system. They could be other systems, users, devices, or external data sources. External entities are used to illustrate the system's boundaries and to show how data flows into and out of the system. They help in defining the scope of the sustem and identifying its interfaces with the external world.

What does the term 'Encapsulation' refer to in object-oriented programming?

Combining data and methods that operate on the data into a single unit (correct)

A programming language feature

A design principle for software development

The process of hiding data within a class

What is Abstraction?

Abstraction in programming simplifies complex systems by focusing on essential characteristics while hiding Unnecessary details. It involves creating models where only relevant features are exposed. Achieved through classes, objects, and interfaces, abstraction promotes code readability, reusability, and maintenance, enabling efficient problem-solving at a higher level of abstraction. Signup and view all the answers

f two classes in a model need to communicate with each other, then that type of relationships are called as

Association Signup and view all the answers

Which diagram describes the various user (or system) activities, the person who does each activity, and the sequential flow of these activities?

Activity Diagram Signup and view all the answers

Generalisation association is a transitive association, meaning the relationship between instances of one class can be extended to instances of another class through a chain of associations involving intermediate classes.

True Signup and view all the answers

A bank customer stops by her bank's ATM to withdraw money from her checking account. In this case, who is the primary business actor?

Bank customer Signup and view all the answers

What is the purpose of encapsulation in object-oriented programming?

To restrict access to certain components of a class and only expose necessary functionalities Signup and view all the answers

Which phases of Software Development Life Cycle (SDLC) whereby use cases are realized and used?

Requirements Analysis and Design Signup and view all the answers

COPY: Business Actors Identification

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Questions and Answers

Which of these questions is not part of the questions part asked when identifying business actors?

What is the external entity used for?

What does the term 'Encapsulation' refer to in object-oriented programming?

What is Abstraction?

f two classes in a model need to communicate with each other, then that type of relationships are called as

Which diagram describes the various user (or system) activities, the person who does each activity, and the sequential flow of these activities?

Generalisation association is a transitive association, meaning the relationship between instances of one class can be extended to instances of another class through a chain of associations involving intermediate classes.

A bank customer stops by her bank's ATM to withdraw money from her checking account. In this case, who is the primary business actor?

What is the purpose of encapsulation in object-oriented programming?

Which phases of Software Development Life Cycle (SDLC) whereby use cases are realized and used?

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