Design Team

1
Asthma Management System
Design Team Stuart Bartow  Raef Haggag Mara
Hemminger Chase Ighani Daniel Lidor
2
Introduction

• What is Asthma?
• Restricted airways
• Intrinsic vs. extrinsic
• Track via PEF and FEV readings
• (e.g. via Peak Flow meter)

3
Introduction

• What products exist already?
• Most show personal red/yellow/green zones
• Most chart recent FEV/PEF readings
• Some allow auto-loading of FEV/PEF values very
  few allow both manual and auto-loading of FEV/PEF
  values
• Few allow data manipulation
• Few are portable
• Few allow users to record/track asthma-attack
  info
• Few track the presence of current or past
  triggers (e.g. pollen counts, temperature,
  humidity, other personal triggers)

4
Introduction

• Goals for AccuLung System
• Provide a mobile resource for tracking asthma
  symptoms and history.
• Provide a graphical view of users asthma
  history.
• Track environmental conditions related to asthma
  triggers.
• Help prevent imminent asthma attacks.
• Application Requirements for AccuLung
• PDA with color display
• Wireless capabilities
• Digital Peak Flow Meter with IR port

5
Methodology

• Researched existing products ordered one
• Interviewed asthmatics for design ideas
• Designers created own designs
• Conglomerated all these ideas into one master
  design
• Implemented system
• Performed usability tests with asthmatics
• Changed design based on feedback
• Received critique from professor and fellow
  classmates
• Changed design based on feedback
• Created website and project paper

6
Live Project Tour
7
Usability Procedure

• Users
• 4 asthmatics and 5 non-asthmatics
• Tasks
• Set up a patient profile
• Record data from a Peak Expiratory Flow test
• Check recent test result trends graph results -
  compare
• Save History, medications list and other
  information
• View current environmental conditions
• Pollen Count
• Temperature
• Humidity
• Air Quality Index

8
Usability Findings

• Choose meaningful colors for navigation buttons
  and environment readings
• Environment button is hard to locate
• Empty Enter Manually input box crashes the
  system
• Plus designers found some input boxes (FEV, PEF)
  misleading
• PEF/FEV graph values are too small to read
• Also add Export button to PEF/FEV graph page
• Add personal best to home pages PEF/FEV graph

9
Choose Meaningful Colors Navigation Buttons
10
Choose Meaningful Colors Environment Values
11
Environment Button Hard to Locate
12
Empty Input Box Causes Crash(Plus Designers
Found Boxes Misleading)
13
PEF/FEV Graph Values Too Small Add Export
Button to Graph Page
14
Add Personal Best to Graph
15
Future Plans

• Show more values on the same graph as PEF/FEV
  values
• Environmental Triggers
• Medications
• Multiple user tracking
• Record asthma triggers
• Develop physician version

16
Acknowledgments

• Dr. Shneiderman, course instructor
• Adam Perer, course teaching assistant
• Usability study participants
• Dr. Scharfstein, professional point-of-contact
• Fellow student project reviewers