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Learning Outcomes
After this unit you will be able to Define activities using “FICS” analysis Understand the different types of context, and their
effects on an activity Use scenarios to represent activities and evaluate your
depth of understanding of those activities This in turn contributes to the Module LO
1. Understand the relationship between designer-centric and user-centric views of interaction and interaction design.
2. Choose and apply appropriate techniques for representing and presenting design thinking and also for evaluating that thinking
Lecture Plan
IntroductionAnalysis & Activities, FICSActivityModelling
Break
ScenariosExample PACT v ScenariosConclusions
Analysis - Design
Before any real design work can commence, it is essential to develop a clear and through understanding of the activities that are to be the focus of the design
It is also true to say that it is not possible to complete a thorough understanding until some design work has been completed
Activities
An activity is any purposeful behaviour undertaken by one of more people, mediated by some artefacts
Understanding activities leads to an understanding of the requirements for a re-designed system
Both current and future activities need to be understood
Analysing ActivitiesFICS Analysis
Achieving a designer-centric view of the system, to complement PACT’s user-centric view
Focus on Functions and Events Interactions and Usability Content and Structure Style and aesthetics
Always considering the context of the activity
Functions and Events
Looking at functions helps to establish the functional requirements What must the system be able to do? What are the functional constraints of a system?
Think about the whole human-computer system…who does what should come later
Events are actions that cause other things to happen
Interactions and Usability
Interaction concerns the ways in which information is exchanged between people and artefacts
Focusing on interactions will expose usability problems
Usability is concerned with Ease of use and learning Engendering positive attitudes in people Flexibility and robustness
Content and Structure
Activities will involve some information content…sometimes a great deal of content
Good content is accurate, up-to-date, relevant and well-presented
Content has to be stored somewhereActivities will include objects that
structure the content
Style and Aesthetics
Focusing on the style and design of artefacts is also important
What is the overall ‘look and feel’ of the system?
What mood does the design engender?
What story does the design tell?
Context of the Activities
Consider the context in which the activity takes place
What is the organisational context?What is the social context?What are the physical
characteristics under which the activity takes place?
Context as surrounding vs. context as gluing together
Class Activity - Understanding Activities
Do a FICS analysis for using a mobile phone to arrange to meet a friend
Functions and eventsInteractions and usabilityContent and structureStyle and aesthetics
Using a mobile phone to arrange to meet a friend
Functions and events Find phone, switch on Get signal indicator Find number Dial number Number answered/engaged/no
answer/message/can’t locate number Exchange information about locations…
Dozens of functions and possible events, any of which might be better implemented in new system?
Using a mobile phone to arrange to meet a friend
Interactions and usability See no signal - move out of dead spot View number – adjust angle to see
clearly Hear ringing – move to where you can
hear (or speak) without problems Look around to see “you’re on 56th and
Wabasha” – street sign broken Check watch for meeting time –
synchronise?
Dozens of interactions – how usable is current system for each one. How might usability change
Using a mobile phone to arrange to meet a friend
Content and structure Friend’s name, phone number(s),
addresses – how many old versions “You’ve got my parents’ phone number, haven’t you?”
Diary for appointments List of venues from which neither
of you are barred! Or where his ex doesn’t work…
Route information – road repairs, traffic jams, bus strikes, taxi costs
What information is needed
How is it organised?
How does it change and when
Using a mobile phone to arrange to meet a friend
Style and aesthetics “Wassap!!!” “I’m on the train” People wouldn’t get mugged
if they didn’t make the phones so desirable.
Modular covers (unlike named tattoos)
Frequently dialled numbers “meet you where?!! I wouldn’t
be seen dead there, but across the road…”
Affects, and affected by, not just the immediate system but the context too?
Methods for Understanding Activities
It is important to employ methods that help the designer understand what others want - to distance designers from their prejudices
Basic methods Working with people Generating ideas (because people will
not know what’s possible) Modelling
Understanding Activities
Asking people using interviews, questionnaires, focus groups, etc.
Observing people using (semi) ethnographic methods
Generating ideas through envisionment, participatory and prototyping methods
Also, look at similar products or systems and at similar activities
Modelling
A model is …some more abstract representation of something
To generate new ideas, examine possibilities and prompt for questions. For accurately expressing ideas to others. To test ideas. To make predictions.
Modelling - Car Designer
Car designer…. ‘doodles’ some ideas, shows them to her colleagues
Settles on one and produces blueprint, gives it to model maker
Makes scale model put in a wind tunnel
Data from wind tunnel goes into computer model to predict aerodynamics
Explores the problem space
Explores the problem space and communicates
Generates data for real world stakeholders
Representing Activities Using Scenarios
The designer’s understanding of activities has to be represented somehow so that it can be discussed and verified By other designers By the people undertaking the activities
Scenarios - short stories about the activity - are an effective way of doing this
Scenarios
…are concrete stories about people undertaking activities using technology in a context
It is important to capture the variation that is possible in people, contexts, technologies and the details of activities….
… So a corpus of scenarios - covering typical examples of the generic activity - will be needed ….
Structuring Scenarios
Give the scenario a name, version number, author, etc, and the rationale for the scenario
Do a PACT analysis for the scenarioNumber the paragraphs, include
endnotes to record claims about the activity
These might be claims about current problems, or claims about future designs
Example - What Shall We Do Now?
RationaleThis scenario has been developed as part of
the first prototype. It is intended to provide a rich description of a general context of use of the Home Information Centre (HIC).
The scenario is deliberately vague with respect to a number of features such as input and output media and modalities, how the content is provided, etc, in order to stimulate discussion about such things.
Example - PACT Analysis
People – A couple in their mid 30s, well-educated, relatively well-off, able-bodied
Activities – Using the HIC to select entertainment from the Edinburgh Arts festival
Context – Living area at home. Information searching only (no communication yet)
Technology – A ‘Home Information Centre’ envisaged as a multi-modal device, something of a cross between a personal computer and a television, stylish, internet-enabled.
Example Paragraph
Jan and Pat are a couple in their mid thirties. Pat is a university lecturer in Cultural Studies and Jan is an accounts manager at Standard Life insurance. They live in the Stockbridge area of Edinburgh, Scotland in a two-bedroom flat overlooking the river. It is 12.00 noon on August 15th. Jan and Pat are sitting in their large, airy kitchen/dining room. The remains of pizza and mixed salad mingles with a pile of newspapers on the kitchen table. Jan and Pat have recently returned from a holiday on the island of Zante and, apart from checking their e-mail, have not gone back to work. They decide that they would like to go to see one of the events that is happening as part of the Edinburgh Arts festival.
Example Continued - Using Endnotes
Jan activates the HIC1 and chooses ‘Edinburgh Festival2. The HIC connects to the different content providers who are registered as providing content about the festival
1. How the HIC is activated is not considered here. Different methods may lead to different versions of the scenario.
2. So, ‘Edinburgh Festival’ is a ‘thing’ in, or accessed by, the HIC. It could be some sort of plug-in provided by a third party content provider. For example, the Guardian Newspaper might provide a free CD-ROM for its readership, Jan and Pat may have downloaded the data from a Web site, the data may be physically resident on some remote machine, or on Pat and Jan’s computer
Using Endnotes (Continued)
The display shows five categories of information — Times of Events, Specific Artists, Specific Events, Specific Venues, Types of Events — a catalogue and a query facility3
3. Again the modality of these are not specified. The query facility could be spoken, typed on a remote keyboard or an on-screen keyboard, written by hand or take some other form such as a query agent. The catalogue facility could be represented in a number of different ways.
Making Claims From Scenarios
When writing, thinking about or using scenarios issues will arise about some design features. Can be recorded as endnotes
Often there are trade-offs and a design feature may lead to positive outcomes or negative ones. These should be listed alongside the feature design feature +ve things -ve things
Description of design feature Description of design feature Description of design feature
Some positive things about the design feature
Some less than positive things about the design feature!
Making Claims, Example
design feature
+ve things -ve things
Near/far view of HIC display
more flexibility, can be seen from far away
more complexity,problems with ‘modes’
Conclusions (1 of 3)
Undertaking an activity analysis involves a number of different views that can be remembered through the acronym FICS; Functions and Events, Interactions and Usability, Content and Structure, Style and Aesthetics.
Conclusions (2 of 3)
Methods for understanding activities fall into three main categories; Methods for working with people
Methods for generating ideas
Modelling methods.