INFO 202 Study Guide - Final Guide: Online Chat, Quantified Self, Transformational Leadership
INFO 202 Lecture Notes
Week 11
3/27 – Software Studies
Information Architecture
• Approaches to design are
o Top-down information architecture
▪ Involves developing a broad understanding of the business strategies + user
needs before defining high level structure of site + finally detailed relationships
b/w content
o Bottom-up information architecture
▪ Involves understanding detailed relationships b/w content, creating
walkthroughs (or storyboards) to show how the system could support specific
user requirements and then considering the higher-level structure that will be
required to support these requirements
Top-down Information Architecture
• You own a hair salon and you sell custom hair product
• Clients include – individuals, other salons, and boutiques
• Services – haircuts for men and women, all over color, highlights, conditioning treatments, facial
waxing, makeup application, blowout, updo
• What is the business strategy for the website?
o What are the user needs?
o What are the relationships b/w the content?
Bottom-up Information Architecture
• Who is your potential audience?
• What specific tasks do they need to complete on your site?
• Based on potential user scenarios, create a high-level structure
Mooes La
• # of transistors per sq in doubles every 2 years
• A ifoatio etieal sste ill ted ot to e used heee it is oe paiful ad
troublesome for a customer to have the information tha fo hi ot to hae it.
Information Interaction
• The classic info retrieval model:
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INFO 202 Lecture Notes
• An updated model:
When You Design for the Web
• You are not the user
o Focus groups
o Observation
• The experience is the brand
o It ist aout the looks
o Findability
• You at otol the epeiee
o User will rarely see your homepage
o User may be using an outdated browser
o User may be accessing thru a mobile device
Qualities That Shaper a User Experience
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INFO 202 Lecture Notes
• Useful
• Usable
• Findable
• Credible
• Accessible desirable
• Valuable
The Push and the Pull
• What is Push Technology?
o XML-ased eall siple sdiatio o ‘““ feeds
o RSS feeds allow Web users to subscribe to specialized information such as news feeds,
weather, research, etc.
o Facebook, Twitter are more or less push technologies
o We opt i to a Push, so that e dot hae to eee to Pull
• What is Pull?
o Using search engines (ex – Google, Bing)
o Subscribing to a service that present categories on a homepage where news, weather,
sports, are click away (Google News)
Human Computer Interaction
• HCI = study of how human beings interact w/ a computer
• Today, much of this research centers on how people interact w/ Websites + other Web objects
like logs, ikis, e-commerce sites, etc.)
• This research is conducted by information scientists & computer scientists w/in universities + in
commercial venues such as Google, Microsoft, and Yahoo
• Research methods
o User studies – people work at the computer on assigned tasks
o All key strokes are logged
o Video may be used
o Eye movements can be tracked + measured
o Think aloud recordings may be made
o Ethnography
What Are Some Key Issues About How People Search the Web?
• Looks out, ut stle ist eethig
• People look at the 1st 10 hits, and very few go beyond 20 hits
• Most people use just one search engine, thereby missing items
3/29 – Algorithms: What are Their Social Impacts
In the News
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