User Interface and Human-Computer Interaction Quiz

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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?

To use primary keys as foreign keys Signup and view all the answers

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

The DBMS rejects the new row Signup and view all the answers

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

Using internally invented keys Signup and view all the answers

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

To prevent orphaned rows Signup and view all the answers

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

Set all corresponding foreign keys to NULL Signup and view all the answers

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

First normal form Signup and view all the answers

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

Database normalization 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?

Domain class modeling Signup and view all the answers

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

Replicated database servers Signup and view all the answers

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

Class methods storage limitations Signup and view all the answers

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

Primitive and complex data types Signup and view all the answers

What is a characteristic of single database servers?

Simplicity Signup and view all the answers

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

Statecharts Signup and view all the answers

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

Storing class methods directly Signup and view all the answers

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

Show physical components across different locations Signup and view all the answers

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

Data types Signup and view all the answers

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

Distributed databases Signup and view all the answers

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

User interfaces involve minimal human intervention, while system interfaces require user interaction. Signup and view all the answers

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

User-Centered Design Signup and view all the answers

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

Xerox Signup and view all the answers

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

Desktop, document, and dialog Signup and view all the answers

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

Visibility Signup and view all the answers

How are dialog designs typically documented according to the text?

Through use case descriptions, storyboards, and UML diagrams Signup and view all the answers

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

Designing for accessibility for diverse user groups Signup and view all the answers

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

'Iterative design' or 'prototyping' Signup and view all the answers

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

'Database management' systems Signup and view all the answers

What does HCI stand for based on the text?

Human-Computer Interaction Signup and view all the answers

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

Object Database Management System (ODBMS) 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?

Object Definition Language (ODL) Signup and view all the answers

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

By storing the object identifier of one object within related objects Signup and view all the answers

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

Through multivalued attributes and an association class Signup and view all the answers

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

Primary keys Signup and view all the answers

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

Primary key Signup and view all the answers

How do object database schemas represent associations among objects?

By using object identifiers stored within related objects Signup and view all the answers