Assessing Interactive System Effectiveness with Usability Heuristics and Markov Models of User Behavior

Details

• Personal Author:
  Kaber DB ; Lee L
• Description:
  The purpose of this research was to create a new measure of usability to aid in determining whether the intent of system designers is realized and to objectively assess user behavior as a basis for interface design recommendations. There are currently few quantitative, objective measures of usability among many subjective measures. A measure combining both objective and subjective data may be valuable in determining user perceptions of system designs and whether performance goals are achieved. The present research used a human computer interaction framework, representing the user, input, the system and output, as a basis for designer and user interface evaluation forms. These forms were used in combination with a Markov model of average number of user actions in task performance in order to determine an overall system usability effectiveness score. The methodology was applied to the evaluation of the design of a web-based ordering interface. The new measurement technique appeared to be sensitive to interface design changes and may be more effective than subjective methods (alone) for determining if interfaces meet design and performance objectives. [Description provided by NIOSH]
• Subjects:
  Computers Occupational Health Safety
• Keywords:
  Design Standards Effectiveness Research Equipment Design Mathematical Models
• ISBN:
  9781605606859
• ISSN:
  1071-1813
• Publisher:
  Human Factors and Ergonomics Society
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings
• Place as Subject:
  California ; New York ; North Carolina ; OSHA Region 2 ; OSHA Region 4 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  52
• Issue:
  16
• NIOSHTIC Number:
  nn:20054138
• Citation:
  Proceedings of the Human Factors and Ergonomics Society 52nd Annual Meeting, September 22-26, 2008, New York, New York. Santa Monica, CA: Human Factors and Ergonomics Society, 2008 Sep; 52(16):1127-1131
• Federal Fiscal Year:
  2008
• Performing Organization:
  University of North Carolina, Chapel Hill
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Proceedings of the Human Factors and Ergonomics Society 52nd Annual Meeting, September 22-26, 2008, New York, New York
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c6e68ad4253099a3da9cb25b85972a34ea9142c10e00f773c2ae6f2d3729ab7cf27e4da724a4f1a7581c82ba27b43c2874b5584553c163e2ccf2164da031d8e7
• Download URL:
  https://stacks.cdc.gov/view/cdc/216768/cdc_216768_DS1.pdf
• File Type:
  [PDF - 256.97 KB ]