Computing Tech

functional criteria?

What a system must do (e.g. login, add tasks, view content).

What are non-functional criteria?

How should the app behave or feel. The whole experience

What does UX focus on?

How the user feels using the product (e.g. smooth, intuitive).

What does UI focus on?

Visual, functional and interactive elements (e.g. buttons, fonts, layout).

What is a database?

Organised collection of structured data, stored electronically.

What is a row ID in a database?

A unique value that identifies a row in a table.

What does WCAG stand for?

Web Content Accessibility Guidelines.

What is bandwidth?

The max amount of data sent over the internet in a time period.

Why are small files important?

They load faster, use less data, and improve performance.

What is lossless compression?

Keeps all original data with no loss in quality.

What is lossy compression?

Removes some data to reduce size, may lower quality.

What is a test case?

Steps to test if the system works correctly (functional).

What is a use case?

A user’s interaction story with the system (non-functional).

What are examples of data types?

Text, numbers, Boolean, date/time.

What is Boolean data?

True or false values (e.g. yes/no, on/off).

Give 3 input methods.

Keyboard, touchscreen, microphone, sensors.

What are 3 output methods?

Screen, printer, speakers.

What is a Braille display used for?

To output text for visually impaired users.

What is syntax validation?

Checks if data follows correct format (e.g. valid email).

What is range validation?

Ensures data is within allowed limits (e.g. age 1–120).

What is domain validation?

checks that data conforms to a specific set of predefined values. yes or no or other. boolean

What is business rule validation?

must have other characters and symbols. passwords. checks that data confomrs to a set of business rules like a credit card number being valid.

What is cross-field validation?

checks data is consisten across multiple fields, such as postcodes being consistent.

What is database validation?

checks that data is consistent with the data in a database. e.g., checking that a user-entered email address is not already in use.

What’s a benefit of interactive media?

It’s engaging and gives instant feedback.

What’s a downside of interactive media?

It can be distracting or addictive.

How can interactive media help learning?

It’s personalised and encourages creativity.

What are some accessibility issues in interactive media?

Not all platforms support users with disabilities.

How is User Interface (UI) related to functional criteria?

UI focuses on the look and interaction (e.g. buttons, menus), which is the functional features of the system.

How is UI linked to test cases?

Test cases check if UI elements (like buttons or links) work as expected in the system.

How is User Experience (UX) related to non-functional criteria?

UX is about how the system feels (e.g. smooth, fast), aligning with non-functional goals.

How is UX linked to use cases?

Use cases describe the user’s journey and experience with the system — directly tied to UX.