Information Displays

1
Information Displays Decision Processes

• Christopher Bunn

2
Purpose

• To avoid errors.
• Allowing integration with ones environment.
• Encourage effective decision making.
• Keeping up with current research.
• Representation of information and decision
  processes is infinite.

3
Types of Information Displays

• Systems flowchart for master patient index -
  shows the flow of data through all or part of the
  system, the various operations that take place
  within the system, and the files that are used to
  produce various reports or documents.

4
Software as Decision Tools

• Hugin Lite 5.2 - The Hugin System is a tool
  enabling you to construct model based decision
  support systems in domains characterized by
  inherent uncertainty. The models supported are
  Bayesian belief networks and their extension
  influence diagrams. The HUGIN System allows you
  to define both discrete nodes and to some extent
  continuous nodes in your models.

5
Statistics as Decision Tools

• Classifying Information

6
Statistics as Decision Markers

• Probability - defined as the relative frequency
  with which an event occurs or as the proportion
  of all possible events that are of a particular
  type. Probability help us as researchers to make
  decisions. Example the weather report suggests
  there is an 80 chance of rain, we know the
  equivalent probability is .80. Would you bring
  your umbrella if there was a 10 chance of rain,
  the equivalent probability .10?

7
Graphic Excellence in Information Processing

• Tufte (1983) wrote that graphic excellence
  consists of complex ideas communicated with
  clarity, precision, and efficiency.

8
Graphical Integrity

• Poor Representation

• Proper Representation

Graphical integrity is using graphics to
accurately portray data.
9
Screen Design Elements Graphic Perception
10
Implications from Research

• National Information Display Laboratory
• Mission Statement
• Empower government users to effectively and
  efficiently capitalize on technology
• emerging from commercial and consumer
  industry by influencing development
• efforts, leveraging advances, implementing
  standards, delivering operational
• solutions, providing corporate courage, and
  promoting passion.
• Areas of Activity
• User Support
• Technology Assessment
• Technology Transfer
• Research Development
• Website http//www.nta.org/nidl.html

11
Conclusion

• At least 3 forms Numerical, verbal, or
  pictorial.
• Displayed Grouped, Tabled, or Matrix.
• Sequence Alphabetical or chronological.

12
Discussion

• Questions?
• Comments?