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System Design

memorize.ai (lvl 286)

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Section 1

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What is augmented reality?

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Last updated

7 years ago

Date created

Mar 1, 2020

Cards (12)

Section 1

(12 cards)

What is augmented reality?

Front

Laying digital information over the real world May need special eye-wear or a mobile camera to display a live feed

Back

What are the advantages/disadvantages of capactive touch?

Front

Much more accurate Can use stronger materials such as glass for the screen However more expensive Cant use gloves must conduct electricity Higher cost

Back

Why are phone GUI's Menu based with large icons?

Front

Accuracy, if small/close together, hard to tell what has been selected This is why websites have mobile versions to make access easier

Back

What is force feedback? Name a device that uses this

Front

Haptic feedback, physical sense that an action has occurred using subtle vibrations Replicates touching a keyboard, or when you crash or get shot in a game, the controller vibrates. Game controller Smartwatch

Back

How is a system validated?

Front

Get user/client feedback Check user interface using a prototype

Back

What is Systems Design Evaluation? Why is it important?

Front

Checking if the project has been successful or not. Allows client to check they are buying what was specified Allows developer to determine whether they will be paid or not.

Back

What are the two types of touchscreen?

Front

Capacitive touch Finger is used to distort the devices electromagnetic field measure capacitance change and translate to x/y coordinates Resistive touch Consists of two flexible plastic sheets when pressure is applied the top sheet it comes in contact with the bottom sheet, completing an electrical circuit. This is registered as an X Y coordinate

Back

What is Systems Design Validation? When does it occur? and Why?

Front

Checks that what is being designed meets the requirements Before implementation occurs to check original spec is being met Sooner the better. Fixes have less impact

Back

How do humans interact with computers today?

Front

Keyboard, voice input, touch screen, force feedback, virtual reality, augmented reality Tactile, intuitive interfaces

Back

What is virtual reality?

Front

Persuades you that you are somewhere else Engages as many senses as possible Navigate the world in an intuitive way

Back

What issues might arise from processing natural language?

Front

Inherent complexity/ambiguity Phrasing commands differently as not all variations may be understood Accents Background noise, hard to distinguish

Back

Name an example of VR and describe how it works

Front

Oculus Rift Two screens give stereoscopic view of the world. Each shows slightly different image to simulate depth perception as each eye sees the world slightly differently. 360 degree head tracking, as you turn, the world changes

Back