unit 6 website evaluation, Lecture notes of Computer science

unit 6 website evaluation criteria

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2015/2016

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UNIT 6: A ) WEBSITE EVALUATION
P1: Compare the principles of web design used in two websites; include their suitability for the intended audience
and intended purpose.
โ—What is the purpose and target audience?
oWebsite โ€“ provide information
oUsers โ€“ visitors to the website
โ–ชAttraction to website
โ–ชEncouraged to make purchases etc. How?
โ–ชPersuade users to bookmark site โ€“ increases probability
oCommerce websites such as eBay, Amazon & online banking โ€“ TA: consumers
โ–ชAllows users to carry out transactions easily and conveniently on PCs and mobile devices
โ—Principles of website design:
oUsability
oWhite space/ spacing
oSite layout
oAccessibility โ€“ Alexa Traffic Rank
oNavigation
oTypography
oAlignment
oClarity
oConsistency
oAccuracy
oContent
oMedia and objects
oSimplicity
โ—Compare the two websites!
M1: Analyse how the principles of website design are used to produce creative, high performance websites which
meet client requirements.
โ—Client: (person who commissioned the website. If the client is not happy, no money for web developer possibly)
oConstraints (limitations of site) eg> money, staff training, security, maintenance and support, time
oNature of interactivity โ€“ need balance. Too little โ€“ lose users. For e-commerce websites, how will online
transactions be performed:
โ–ชHow will the user browse the catalogue? Eg> hierarchical fashion โ€“ filter preferences
โ–ชHow will users make purchases? TLS (encrypted info needed for payment), PayPal
oBenefits
โ—Requirements of websites:
oUser-friendly โ€“ easy-to-understand and use
oConsistent โ€“ colours, fonts, links, style, images
oNavigational โ€“ help users find information they require
oCustomisable โ€“ keep users engaged
oResponsive โ€“ adapt to any web browser
oBandwidth utilisation โ€“ sensitive mobile contracts, designers recognise how the contract will be used
โ—Principles of website design:
oUsability
oWhite space/ spacing
oSite layout
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UNIT 6: A ) WEBSITE EVALUATION

P1: Compare the principles of web design used in two websites; include their suitability for the intended audience and intended purpose. โ— What is the purpose and target audience? o Website โ€“ provide information o Users โ€“ visitors to the website โ–ช Attraction to website โ–ช Encouraged to make purchases etc. How? โ–ช Persuade users to bookmark site โ€“ increases probability o Commerce websites such as eBay, Amazon & online banking โ€“ TA: consumers โ–ช Allows users to carry out transactions easily and conveniently on PCs and mobile devices โ— Principles of website design: o Usability o White space/ spacing o Site layout o Accessibility โ€“ Alexa Traffic Rank o Navigation o Typography o Alignment o Clarity o Consistency o Accuracy o Content o Media and objects o Simplicity โ— Compare the two websites! M1: Analyse how the principles of website design are used to produce creative, high performance websites which meet client requirements. โ— Client: (person who commissioned the website. If the client is not happy, no money for web developer possibly) o Constraints (limitations of site) eg> money, staff training, security, maintenance and support, time o Nature of interactivity โ€“ need balance. Too little โ€“ lose users. For e-commerce websites, how will online transactions be performed: โ–ช How will the user browse the catalogue? Eg> hierarchical fashion โ€“ filter preferences โ–ช How will users make purchases? TLS (encrypted info needed for payment), PayPal o Benefits โ— Requirements of websites: o User-friendly โ€“ easy-to-understand and use o Consistent โ€“ colours, fonts, links, style, images o Navigational โ€“ help users find information they require o Customisable โ€“ keep users engaged o Responsive โ€“ adapt to any web browser o Bandwidth utilisation โ€“ sensitive mobile contracts, designers recognise how the contract will be used โ— Principles of website design: o Usability o White space/ spacing o Site layout

o Accessibility โ€“ Alexa Traffic Rank o Navigation o Typography o Alignment o Clarity o Consistency o Accuracy o Content o Media and objects โ€“ position, colour, contrast, size, appropriateness o Simplicity โ— Creativity & innovation: o Unconventional layouts o Unique animations o Good use of space by having scrolling o Golden ratio (1.62) โ–ช Ratio โ–ช Aesthetically pleasing โ— Factors affecting website performance: o Where scripting runs โ–ช Web server (server-side scripts) - interactive features, connecting to a database, slow experience, load on the server โ–ช or local client machine (client-side scripts) โ€“ extra interactivity without connecting to a web server โ— Browser compliance: o Speed on different browsers o Advantages and disadvantages on each browser o Website consistency โ— Server-side factors: o Bandwidth availability o File types โ€“ compression o Number of hits โ— Client-side factors o Upload and download speeds o Processor speed โ€“ websites that rely heavily on client-side eg> JavaScript put a significant load on the userโ€™s CPU. Connection speed determine download rate o Cache memory โ€“ big memory = fast computer o Browsers o Interactivity โ€“ Flash elements can affect speed but with 4G, fibre optics etc this is less of a problem. Previously it took time to download, now its standard D1: Evaluate how the principles of website design are used to produce creative, high performance websites which meet client requirements. โ— Strengths and weaknesses of all the above