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Questions and Answers
What is the primary purpose of C4 diagrams in software architecture?
What is the primary purpose of C4 diagrams in software architecture?
- To represent the user interface elements
- To provide a detailed code structure view for components (correct)
- To outline the system performance metrics
- To visualize the database structure only
When are UML class diagrams primarily used?
When are UML class diagrams primarily used?
- During the testing phase of software development
- For documenting the operational procedures
- To describe the static structure of object-oriented software (correct)
- When designing the graphical user interface
In what situation should Agile teams create component diagrams?
In what situation should Agile teams create component diagrams?
- To document software flaws
- When there are simple object relationships
- For every component regardless of complexity
- Only when complex relations among classes exist (correct)
What relationship does a House have with a Room?
What relationship does a House have with a Room?
What notation is typically used for modeling relational databases?
What notation is typically used for modeling relational databases?
Why is it advisable to create separate classes in object-oriented programming?
Why is it advisable to create separate classes in object-oriented programming?
In the context of classes, what does 'is-a' relationship imply?
In the context of classes, what does 'is-a' relationship imply?
What is a potential drawback of using a controller to manage inherited attributes?
What is a potential drawback of using a controller to manage inherited attributes?
What does the cardinality '1..*' signify in the relationship between House and Room?
What does the cardinality '1..*' signify in the relationship between House and Room?
What does the 'Person' class in the example provide characteristics for?
What does the 'Person' class in the example provide characteristics for?
Which attribute best describes what a Room must have?
Which attribute best describes what a Room must have?
Which aspect is NOT typically modeled via a UML class diagram?
Which aspect is NOT typically modeled via a UML class diagram?
How is Aggregation described in the context of classes?
How is Aggregation described in the context of classes?
Which of the following best describes Composition in software architecture?
Which of the following best describes Composition in software architecture?
What does the term 'multiplicity' refer to in class relationships?
What does the term 'multiplicity' refer to in class relationships?
Which statement about Inheritance is correct?
Which statement about Inheritance is correct?
What is the main purpose of data abstraction in object-oriented programming?
What is the main purpose of data abstraction in object-oriented programming?
Which of the following correctly describes encapsulation?
Which of the following correctly describes encapsulation?
In UML class diagrams, which relationship describes the ability of one class to inherit attributes and methods from another?
In UML class diagrams, which relationship describes the ability of one class to inherit attributes and methods from another?
What is illustrated by the example of 'Chris Hemsworth' in the data abstraction section?
What is illustrated by the example of 'Chris Hemsworth' in the data abstraction section?
Which aspect of object-oriented code is NOT typically visualized using UML class diagrams?
Which aspect of object-oriented code is NOT typically visualized using UML class diagrams?
What is the primary advantage of using classes as templates in object-oriented programming?
What is the primary advantage of using classes as templates in object-oriented programming?
Which relationship describes how one class can be associated with another without implying ownership?
Which relationship describes how one class can be associated with another without implying ownership?
What aspect does not apply to polymorphism in the context of object-oriented programming?
What aspect does not apply to polymorphism in the context of object-oriented programming?
Which of the following parties are involved in the GP Surgery System?
Which of the following parties are involved in the GP Surgery System?
What is the primary function of the Front-End App in the Container Diagram?
What is the primary function of the Front-End App in the Container Diagram?
Which component of the system is responsible for handling authentication?
Which component of the system is responsible for handling authentication?
What type of architecture does the GP Surgery System employ concerning its components?
What type of architecture does the GP Surgery System employ concerning its components?
What technology stack is mentioned in the API App's implementation?
What technology stack is mentioned in the API App's implementation?
In the context diagram, what service is utilized for handling card payments?
In the context diagram, what service is utilized for handling card payments?
Which database technology is referenced in the Container Diagram?
Which database technology is referenced in the Container Diagram?
What is the purpose of the e-Wallet Management component?
What is the purpose of the e-Wallet Management component?
What is indicated about the context diagram as more information is studied?
What is indicated about the context diagram as more information is studied?
Which of the following statements is true concerning the consultation records functionality?
Which of the following statements is true concerning the consultation records functionality?
What type of multiplicity is represented by a relationship where a Patient has exactly one Doctor?
What type of multiplicity is represented by a relationship where a Patient has exactly one Doctor?
In the context of the relationships described, which option best defines the directionality of the Doctor ↔ Patient relationship?
In the context of the relationships described, which option best defines the directionality of the Doctor ↔ Patient relationship?
What does the notation '1..*' signify in the relationship between Course and Instructor?
What does the notation '1..*' signify in the relationship between Course and Instructor?
Which statement about the Instructor to Course relationship is true according to the multiplicity defined?
Which statement about the Instructor to Course relationship is true according to the multiplicity defined?
How would you categorize the relationship between Instructor and Course as specified in the provided example?
How would you categorize the relationship between Instructor and Course as specified in the provided example?
In a one-to-many relationship, which statement is correct?
In a one-to-many relationship, which statement is correct?
What does the notation '0..*' denote in an association relationship?
What does the notation '0..*' denote in an association relationship?
Why might the relationships and multiplicities change according to business requirements?
Why might the relationships and multiplicities change according to business requirements?
Study Notes
Multiplicity
- One-to-One: One element in a class is associated with one element in another class.
- One-to-Many: One element in a class is associated with many elements in another class.
- Many-to-Many: Many elements in one class are associated with many elements in another class.
- Zero-to-Many: An element in a class can be associated with zero or many elements in another class.
Directionality
- Unidirectional: The association between two classes flows in one direction.
- Bidirectional: The association between two classes flows in both directions.
Class Diagrams
- UML Class Diagrams represent the static structure of object-oriented code.
- UML Class Diagrams are used to visualise data abstraction, encapsulation, association relationships, inheritance, and polymorphism.
Data Abstraction
- Data Abstraction simplifies complex systems by modelling classes based on essential characteristics, hiding unnecessary details.
- Classes are templates for creating objects.
- Objects are instances of a class.
Encapsulation
- Encapsulation bundles data and functions (methods) within the same class.
C1 (Context) Diagram
- C1 (Context) Diagram show system boundaries and external interactions.
- C1 (Context) Diagram often evolve as understanding of the system deepens.
C2 (Container) Diagram
- C2 (Container) Diagram shows individual container interactions.
- Containers can be deployed separately.
C3 (Component) Diagram
- C3 (Component) Diagram show internal components within a container.
- Components are not separately deployable.
Example Briefing (partial) – GP Surgery System
- GP Surgery System will handle electronic charges.
- Stripe API will be used for external card payments.
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Description
This quiz covers key concepts of UML class diagrams, including various types of multiplicity and directionality in class associations. It will test your understanding of data abstraction, encapsulation, and the relationships between classes in object-oriented design.
