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SBD:%20Analyzing%20Requirements

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SBD: Analyzing Requirements Section 1 CRN 11499 TuTh 5:00-6:15 209 McB Analyzing Requirements UE: Requirements Analysis What do users want? What are users like? – PowerPoint PPT presentation

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Title: SBD:%20Analyzing%20Requirements


1
SBD Analyzing Requirements
Section 1 CRN 11499 TuTh 500-615 209 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
ANALYZE
claims about current practice
analysis of stakeholders, field studies
Problem scenarios
DESIGN
Activity scenarios
iterative analysis of usability claims
and re-design
metaphors, information technology, HCI
theory, guidelines
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
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
  • Its 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 youve seen and heard
  • Does it make sense?
  • Can you tell a complete story?

11
Lets 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 Krogers checkout
  • Due in one week

14
First team report
  • Your mission find out about your users
  • 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
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