Web design/section 3 Flashcards
Analysis
Web developers consider the end-user requirements and functional requirements of a website
Analysis
End-users
The people most likely to use a finished product
Analysis
End-user requirements
Features that are needed or wanted by the end-user
Such as any accessibility requirements
Analysis
Functional requirements
The processes the website should carry out and interactions with databases/information
Design
What act protects the assets of an individual?
Copyright, designs and patents act 1998
Design
What elements related to the Copyrights, designs and patents act do developers need to consider?
Elements such as text, graphics, videos and audio
Design
What do developers have to do with media that isn’t theirs?
Give credit and acquire relevant permissions before using the media
This may also involve paying copyright holders
Design
Copyright holders
The owner of any multimedia
Design
Failure to comply with the Copyright, Designs and Patents Act can result in…
Fines and prosecution
Can include end-users and business owners/developers
Design
Compression
Reducing a file’s size/required storage space
Design
Benefits of compression
Lower storage requirements on the server side, more responsive upload rates/less time to transfer files to the client side
Design
Compression techniques
Lossy and lossless compression
Design
Lossy compression
Removes some of the data when compressing, so compression rates are higher
Only if the file format supports lossy compression
Design
Lossless compression
Maintains all original data, lower compression rates
Design
Types of site navigation sructures
Linear, hierarchal
Design
Linear navigation structure
A structure where the user moves from one page to the next in a sequence
Design
Hierarchal navigation structure
A structure where pages can be accessed dependant on the user’s position in the hierarchy
Design
Wireframes
Used to design the visual layout of the webpage
Design
Wireframes must show…
Navigation links, text areas, media used with file format, position and types of hyperlinks
Design
Benefits of wireframes
Used to show the client the design early-on, easy way to design user-interface
Design
Low-fidelity prototypes
A quick design of the user-interface of a website, usually drawn on paper
Benefit of it being low cost
Design
File formats for audio files
WAV and MP3
Design
Compression in WAV files
Almost always uncompressed
Can sometimes use LCPM encoding for lossless compression
Design
WAV file consistency
Consistent with the original sound
Design
WAV file size
Restricted to less than 4GiB
Design
WAV file sampling rate
44.1-48kHz
Design
Sampling rate
Number of times sound is captured per second
Design
MP3 file compression
Lossy compression that uses perceptual coding
Design
MP3 file quality
Quality depends of levels of lossy compression
Design
MP3 file size
There is no defined limit
Design
MP3 file sampling rate
44.1-48kHz
Design
File formats for images
JPEG, GIF, PNG
Design
JPEG file compression
Lossy compression
DCT encoding
Design
JPEG file animation
Not supported
Design
JPEG file transparency
Not supported
Design
JPEG file colour depth
24 bit; 16,777,216 colours available
Design
GIF file compression
Lossless compression
LZW encoding
Design
GIF file animation
Supported
Design
GIF file transparency
Supported
Design
GIF file colour depth
8 bit, 256 colours available