User Interface and Human-Computer Interaction Quiz
37 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the first step to create a relational schema from a class diagram?

  • Define referential integrity constraints
  • Create new tables to represent many-to-many relationships
  • Choose a primary key for each class
  • Create a table for each class (correct)

How are one-to-many relationships represented in a relational database schema?

  • By adding foreign keys (correct)
  • By using the primary key of the parent table as the primary key of the child tables
  • Using internally invented keys
  • By combining all tables into a single table

In database normalization, what is ensured by the second normal form?

  • Every non-key attribute is functionally dependent on the primary key (correct)
  • No non-key attribute is functionally dependent on any non-key attribute
  • Every attribute value has a one-to-one correspondence
  • No repeating attributes or groups of attributes in a table

What is the purpose of using separate tables to represent child classes when dealing with classification hierarchies?

<p>To use primary keys as foreign keys (A)</p> Signup and view all the answers

What happens if a new row contains an unknown foreign key value in a relational database schema?

<p>The DBMS rejects the new row (B)</p> Signup and view all the answers

Which step helps evaluate schema quality by ensuring uniqueness and lack of redundant data?

<p>Using internally invented keys (A)</p> Signup and view all the answers

What is the purpose of enforcing referential integrity in a relational database?

<p>To prevent orphaned rows (B)</p> Signup and view all the answers

What should be done if a primary key is deleted or modified in a relational database schema?

<p>Set all corresponding foreign keys to NULL (A)</p> Signup and view all the answers

What ensures that no repeating attributes or groups of attributes exist in a table according to normalization standards?

<p>First normal form (B)</p> Signup and view all the answers

What technique aims to minimize redundancy and ensure database schema quality?

<p>Database normalization (C)</p> Signup and view all the answers

What technique is used to ensure that tables generated from the RMO class diagram do not violate normalization forms?

<p>Domain class modeling (C)</p> Signup and view all the answers

Which database architecture type offers fault tolerance and load balancing but requires synchronization techniques?

<p>Replicated database servers (B)</p> Signup and view all the answers

What is a main challenge in designing an interface between persistent classes and the RDBMS?

<p>Class methods storage limitations (D)</p> Signup and view all the answers

Which technique allows schema designers to define new data types as classes in Object DBMS?

<p>Primitive and complex data types (A)</p> Signup and view all the answers

What is a characteristic of single database servers?

<p>Simplicity (B)</p> Signup and view all the answers

Which system modeling technique captures status conditions of objects and behavioral constraints of system classes?

<p>Statecharts (A)</p> Signup and view all the answers

What is a common limitation of hybrid object-relational databases?

<p>Storing class methods directly (A)</p> Signup and view all the answers

What is the main purpose of UML deployment architectural notation in Web-based systems?

<p>Show physical components across different locations (A)</p> Signup and view all the answers

What defines the storage format and content constraints for variables or database attributes?

<p>Data types (D)</p> Signup and view all the answers

What type of databases can be organized as single, replicated, partitioned, or federated server architectures?

<p>Distributed databases (C)</p> Signup and view all the answers

What is the main difference between user interfaces and system interfaces?

<p>User interfaces involve minimal human intervention, while system interfaces require user interaction. (A)</p> Signup and view all the answers

Which design approach emphasizes understanding user styles and iterative development based on user requirements?

<p>User-Centered Design (C)</p> Signup and view all the answers

What contributed significantly to the evolution of Human-Computer Interaction (HCI) according to the text?

<p>Xerox (D)</p> Signup and view all the answers

What are examples of metaphors for Human-Computer Interaction (HCI) mentioned in the text?

<p>Desktop, document, and dialog (C)</p> Signup and view all the answers

Which principle suggests that control appearance should imply its functionality in interface design?

<p>Visibility (D)</p> Signup and view all the answers

How are dialog designs typically documented according to the text?

<p>Through use case descriptions, storyboards, and UML diagrams (A)</p> Signup and view all the answers

What is a key principle in web design mentioned in the text?

<p>Designing for accessibility for diverse user groups (A)</p> Signup and view all the answers

In designing dialogs, what involves refining forms and iteratively modifying designs to meet user needs effectively?

<p>'Iterative design' or 'prototyping' (C)</p> Signup and view all the answers

Which systems are crucial for storing, retrieving, and managing data according to the text?

<p>'Database management' systems (B)</p> Signup and view all the answers

What does HCI stand for based on the text?

<p>Human-Computer Interaction (B)</p> Signup and view all the answers

What is the technology of choice for newly designed systems when it comes to databases?

<p>Object Database Management System (ODBMS) (D)</p> Signup and view all the answers

Which language is the standard developed by the ODMG for defining the structure and content of an object database?

<p>Object Definition Language (ODL) (C)</p> Signup and view all the answers

How do Object Database Management Systems (ODBMSs) represent associations among objects?

<p>By storing the object identifier of one object within related objects (A)</p> Signup and view all the answers

In a many-to-many association, how are the associations represented in Object Definition Language (ODL)?

<p>Through multivalued attributes and an association class (A)</p> Signup and view all the answers

What is the basis for representing relationships among tables in relational databases?

<p>Primary keys (A)</p> Signup and view all the answers

Which type of key uniquely identifies a row in a table in a relational database?

<p>Primary key (D)</p> Signup and view all the answers

How do object database schemas represent associations among objects?

<p>By using object identifiers stored within related objects (D)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser