Domain Class Diagrams Flashcards
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Questions and Answers

What are examples of behavioural diagrams?

  • Flowchart
  • Activity diagram (correct)
  • Use case diagram (correct)
  • Entity-Relationship diagram

    • What type of diagram is a class diagram?

    A structural diagram

    What are class diagrams?

    A class diagram shows a collection of static model elements such as classes and types, their contents and their relationships.

    Why is the class diagram one of the most important diagrams?

    <p>It helps to identify the 'things' in a problem domain along with their attributes and behaviors.</p> Signup and view all the answers

    What is the function of a class diagram?

    <p>It represents the focal point of object-oriented development and must be consistent with other models.</p> Signup and view all the answers

    What is a public interface?

    <p>Set of behavior or functionality that you use to interact with an object.</p> Signup and view all the answers

    What does a domain class diagram initially depict?

    <p>Visual dictionary of the noteworthy abstractions, domain vocabulary and information content of the domain.</p> Signup and view all the answers

    What contains the entity classes that have been identified in the scope of the project and the relationship between them?

    <p>The domain class diagram.</p> Signup and view all the answers

    What does an entity class represent?

    <p>Those objects that we need to store data for.</p> Signup and view all the answers

    What is the foundational diagram in the Requirements, Analysis and Design Workflows?

    <p>Class diagrams.</p> Signup and view all the answers

    What dictates the structure of the software system?

    <p>A class diagram and the elements used in the construction of this diagram.</p> Signup and view all the answers

    What can be modeled by using a class diagram?

    <p>Concepts like classes, objects, their attributes, and associations.</p> Signup and view all the answers

    What does OO stand for?

    <p>Object-oriented.</p> Signup and view all the answers

    What is the OO paradigm based on?

    <p>A system for items called objects.</p> Signup and view all the answers

    Why do we form an abstraction of things?

    <p>To create a simulation of the real world.</p> Signup and view all the answers

    Give an example of the abstraction of a person.

    <p>From a university point of view, important details are a person's name, address, ID, phone number, and educational background.</p> Signup and view all the answers

    What is the problem domain?

    <p>The specific focus area of a business that will be included within the scope of the new system.</p> Signup and view all the answers

    What does an analysis of the specific problem domain help with?

    <p>To understand the things in this domain, what they know, and what they do.</p> Signup and view all the answers

    What are objects?

    <p>Things that an end user will work with, use, and interact with.</p> Signup and view all the answers

    What are the categories of these 'things'?

    <p>Domain classes.</p> Signup and view all the answers

    Can these things be tangible and intangible?

    <p>True</p> Signup and view all the answers

    Give an example of this.

    <p>A system for managing testing procedures during COVID-19 includes both tangible (patients, staff, equipment) and intangible (diagnosis) entities.</p> Signup and view all the answers

    What are 2 of the most common techniques to help us identify these entities in the problem domain?

    <ol> <li>Brainstorming technique 2. Noun technique.</li> </ol> Signup and view all the answers

    What is the brainstorming technique?

    <p>An analyst works with the user to discuss the types of things they usually work with in this problem domain.</p> Signup and view all the answers

    Study Notes

    Behavioural Diagrams

    • Examples include use case diagrams and activity diagrams.

    Class Diagrams

    • Class diagrams are classified as structural diagrams.
    • They showcase static model elements like classes and their relationships, attributes, and behaviors.

    Importance of Class Diagrams

    • Essential for understanding problem domains, identifying 'things', their attributes, and behaviors.
    • Serve as the central model throughout the object-oriented (OO) development life cycle, ensuring consistency with other models.

    Function and Structure

    • Class diagrams are continuously built and refined, acting as the focal point of OO development.
    • They dictate the structure of the software system through their elements.

    Public Interface

    • Refers to the set of behaviors or functionalities used to interact with an object.

    Domain Class Diagram

    • Initially depicts a visual dictionary of key abstractions, domain vocabulary, and the content within the problem domain.
    • Contains entity classes identified in the project and displays their relationships.

    Entity Classes

    • Represent the objects needing data storage, such as a patient with a medical record and possible prescriptions.

    Requirements and Workflows

    • Class diagrams are foundational in requirements, analysis, and design workflows.

    Object-Orientation

    • OO stands for object-oriented, which is based on a system of objects.

    Abstraction

    • Represents a simplified simulation of the real world to manage complexity in system design.
    • Example: From a university perspective, key attributes of a person include name, address, and educational background, while medical attributes might involve heart rate and temperature.

    Problem Domain

    • The specific focus area of a business included in the new system's scope.

    Analysis Benefits

    • Helps gain an understanding of domain elements, their attributes, and behaviors.

    Domain Classes

    • Objects within the domain represent various "things" end users interact with.
    • These "things" can be tangible (e.g., animals, books) or intangible (e.g., emotions, payments).

    Practical Example

    • In developing a system for COVID-19 testing, the problem domain comprises all procedures and components involved, including patients and staff, equipment, and intangible diagnoses.

    Entity Identification Techniques

    • Common techniques for identifying entities in a problem domain include brainstorming and noun techniques.

    Brainstorming Technique

    • Engages users in discussing important elements within the problem domain, considering varied perspectives of different users.

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    Description

    Test your knowledge of Domain Class Diagrams with these flashcards. Explore examples of behavioral diagrams, the nature of class diagrams, and their structural elements. Perfect for students and professionals looking to strengthen their understanding of UML diagrams.

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