1. SBD: Analyzing Requirements
Section 1 CRN TuTh 5:00-6: McB

2. Analyzing Requirements
UE: Requirements Analysis
What do users want? What are users like? Who are users?
Homework 2 (and early warning about Team Report 1)

3. Information scenarios
ANALYZE
analysis of
stakeholders,
field studies
claims about current
practice
Problem scenarios
DESIGN
Activity
scenarios
metaphors,
information
technology,
HCI theory,
guidelines
iterative
analysis of
usability
claims and
re-design
Information scenarios
Interaction scenarios
PROTOTYPE & EVALUATE
summative
evaluation
formative
evaluation
Usability specifications

4. Analyzing Requirements
Goal: understand users’ current activities well enough to reason about technology-based enhancements

5. Analyzing Requirements
Root concept
The starting point / the mission / what you are paid to do
Background research (Google, library, your own experience)
Field studies (ethnography)
Contextual inquiry (ask during)
Participatory analysis (ask after)
Explicit vs tacit knowledge
Summaries
Problem scenarios
Story of current activity
Claims analysis
+/- impacts

6. SBD and Requirements Analysis Root concept: vision, rationale,
assumptions, stakeholders
SBD and
Requirements
Analysis
Field studies: workplace observations,
recordings, interviews, artifacts
Summaries: stakeholder, task, and artifact analyses, general themes
Problem scenarios:
illustrate and put into context the tasks and themes discovered in the field studies
Claims analysis:
find and incorporate features of practice that have key implications for use

7. Categories
People
Activities
Artifacts (things used)
Social context

8. How do we find out what do users want?

9. The ethnographic method
Field studies, not lab experiments
Comes from anthropology
Generalize from the few and the particular
It’s just one possible method

10. Some suggestions on how to see
Leave your categories at home…
Forgetting is seeing things anew.
Listen
Talk
Reflect on what you’ve seen and heard
Does it make sense?
Can you tell a complete story?

11. Let’s Watch TV!!! Xerox PARC Research by Lucy Suchman (see refs in UE)
Subjects are NOT some “dumb users”

12. Grocery Shopping

13. HW 2
HTA: Kroger’s checkout
Due in one week

14. First team report Your mission: find out about your users Start NOW!
Who are they?
What matters to them?
What do they do in their work?
What is unexpected?
How do they now get to the information your project will present to them?
What is the scenario of their current work practice?
Can you imagine alternate scenarios?
Start NOW!
Due in two weeks