design john barr Comp 306 Mobile Development 1" barr - PowerPoint PPT Presentation

design john barr Comp 306 Mobile Development 1" barr ")" Comp 306 "

design define design ? – a plan for the construction of an object – “form meets function” – many solutions what are concepts are involved in good design? – functionality – usability – aesthetics – consistency – simplicity – organization barr Comp 306" 2"

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Interactive Design Define interactive design ? – a plan for the construction of an service or event – flow – marry goals with user requirements Interactive Design involves – Cognitive Psychology • metaphor, affordances, expectations – Human-Computer Interaction – User Interface Design barr Comp 306" 4"

XXX-Centered Design Organization-Centered – assumes prior knowledge – overwhelming at first but useful in the end – e.g., blackboard, hospital intranet barr Comp 306" 5"

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XXX-Centered Design Organization-Centered – assumes prior knowledge – overwhelming at first but useful in the end – e.g., blackboard, Hospital intranet Technology-Centered – start with bleeding-edge tool • e.g., Flash, HTML5, iPod – build site around tool – learn new skills barr Comp 306" 7"

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XXX-Centered Design Organization-Centered Technology-Centered Design-Centered – Cool, Colorful, Hip – Overwhelming – Hard to Use barr Comp 306" 9"

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XXX-Centered Design Organization-Centered Technology-Centered Design-Centered problem : forces user to learn/adapt to product barr Comp 306" 11"

Human-Centered Design Designed around target audience Extensive user testing at each stage – generate ideas – validate assumptions – evaluate potential Focus on tasks & goals – Who is the user? (profile) – What do they want to do? (task) – Why are they doing it? (goal) barr Comp 306" 12"

Human-Centered Design Visibility – User can predict what to do based on visual inspection Accessibility – ease of information gathering – navigation, search, table of contents, page numbers – chunking – breaking info down into bites size pieces Legibility – Easy to read – Contrast, Font, Font Size – Kindle vs. iPad Language - short, meaningful sentences - using simple words barr Comp 306" 13"

Human-Centered Design Ethnographic studies – observe, interview, survey 1. Comparative Analysis 2. Use Cases 3. Participatory Design Session 4. Prototype Testing 5. Usability Testing 6. Design for Errors barr Comp 306" 14"

In practice 1. Idea Generation 2. Initial Research 3. The Design Cycle 4. Development 5. Testing 6. Launch 7. Maintenance barr Comp 306" 15"

Idea Generation Starts as a seed and grows when natured – Brainstorm – Bounce your ideas off colleagues • knowledge about domain • brutal honesty • open to suggestion but stand ground – Reflection – Simplify to core idea barr Comp 306" 16"

In practice 1. Idea Generation 2. Initial Research – Explore existing apps • Comparative Analysis – Identify your audience – Develop personas, use cases, & storyboards 3. The Design Cycle 4. Development barr Comp 306" 17"

Initial Research Comparative Analysis – Closely examine similar apps – Create a feature matrix – List strengths & weaknesses – Identify defining features barr Comp 306" 18"

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Initial Research Target Audience – Demographic Information • Objective, Factual Information • Age, gender, geographic location, education – Psychographic Profile • Political & Religious Beliefs • Environmentalist, Socially Conscious • Fun Loving, Hard Working • Free-spirited, family-oriented • Lover of Music, Movies, Dance, Wine, Food, Video Games barr Comp 306" 20"

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What demographics are identified in the following description? The audience for the LeftyStuff Web site is potential purchasers of LeftyStuff products who have responded to one of LeftyStuff’s banner ads and are interested in items designed especially for left-handed people. Most are adults, equally divided among men and women, between the ages of 25 and 50, who live in the US or Canada, are sports-minded, and have family incomes greater than $50,000. Most have never visited the site before.

Steps in defining the audience Ask your client the following questions about site visitors: Who are they? Why are they at the site? How did they get there? How old are they? What’s the range of their ages? Where do they live? What gender are they? Mostly men/women? why? How wealthy are they compared to the rest of the population? What’s their history of dealing with your organization? What have they done before at your web site? Are there any common characteristics that stand out?

Exercise Talk with the people on either side of you and describe the audience for a n app that allows a user to scan in a required book in the bookstore and determine whether it's available in the library or on Amazon . Write your description on a whiteboard.

Initial Research Personas & Use Cases (Scenarios) Alice, 22 years old, just moved to Philly, recent college graduate, barista at local coffee shop, likes Franz Ferdinand, hates sports, owns an iPod Wants to passively discover good alternative rock bands and small venues/bars in Fishtown. Turns on her iPod, and goes to megsradio.com. Sees list of local bands and their types of music. Clicks on one and one of the band's songs starts to play. barr Comp 306" 21"

Initial Research Personas & Use Cases Nurse collecting medical history at a doctor's office Initial assumption : The patient has seen a medical receptionist who has created a record in the system and collected the patient’s personal information (name, address, age, etc.). A nurse is logged on to the system and is collecting medical history. Normal : The nurse searches for the patient by family name. If there is more than one patient with the same surname, the given name (first name in English) and date of birth are used to identify the patient. The nurse chooses the menu option to add medical history. The nurse then follows a series of prompts from the system to enter information about consultations elsewhere on mental health problems (free text input), existing medical conditions (nurse selects conditions from menu), medication currently taken (selected from menu), allergies (free text), and home life (form). barr Comp 306" 22"

Initial Research Storyboarding Bobby comes to SITE after doing a Google search for “central new york indie rock”. He see a link that says “promote your band”. He is asked to create a login, which he does He enters a myProfile portal barr Comp 306" 23"

Initial Research Storyboarding Bobby comes to SITE after doing a Google search for “central new york indie rock”. He see a link that says “promote your band”. He is asked to create a login, which he does He enters a myProfile portal barr Comp 306" 24"

Initial Research Storyboarding Bobby comes to SITE after doing a Google search for “central new york indie rock”. He see a link that says “Promote your Band”. He comes to a pages that show “ Bands we are Currently Promoting ” with images, links to free music downloads, lists of upcoming events He sees a “ Start Promoting Your Band ” button This takes him to a “walk through” account creation interaction… barr Comp 306" 25"