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SBD:%20Analyzing%20Requirements

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Information scenarios. claims about current. practice. analysis of. stakeholders, field studies ... Analysis. Grocery Shopping. HW 1. HTA. Kroger's checkout ... – PowerPoint PPT presentation

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Title: SBD:%20Analyzing%20Requirements


1
SBD Analyzing Requirements
  • Chris North
  • cs3724 HCI

2
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
3
Analyzing Requirements
  • Goal understand users current activities well
    enough to reason about technology-based
    enhancements

4
Analyzing Requirements
  • Root concept
  • 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

5
Categories
  • People
  • hypotheticals
  • Activities
  • HTA subgoals
  • Artifacts
  • usage
  • Social context
  • relationships

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
Grocery Shopping
8
HW 1
  • HTA
  • Krogers checkout
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