Principles and Guidelines for Effective Response Time Management
Learn about the importance of response time in system design and user experience. Discover strategies for optimizing response time, managing errors, and adapting to varying user needs. Explore recommended response time ranges for different types of interactions to enhance user satisfaction and reduce stress.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
RESPONSE TIME Teknik Informatika Unikom 2012
Response Time [Deborah J. Mayhew] Task Time = System Response Time + System Display Rate + User Scan/Read Time + User Think Time + User Response Time + Time Making Errors + Time Recovering from Errors
Adaptive user strategies to varying system response (RT) and error recovery (ER) times Fast RT, Fast ER Low user think time High user errors High user satisfaction Low stress Fast RT, Slow ER Moderate Slow RT, Slow ER High user think time Low user errors Low user satisfaction High stress
Response Time: Principles and Guidelines [1] Optimal display rate depends on the user s task. Response time steps in a process exceed 2 second. Keep response time variability at less than + 50 % of the mean. for intermediate should not
Response Time: Principles and Guidelines [2] Make variability visible. Make ease of learning and use versus response time trade-offs based on user experience and expectations. the sources of response time
Response Time: Principles and Guidelines [3] Response time should be consistent with user expectation. Manage user feedback expectation with
Table 7.2 Suggested response time ranges for operations of varying perceived complexity [Shneiderman,1980]. Interaction type Example Time (T) Input Direct manipulation Simple commands Paging Simple error checking Open file Complex commands Load application Move across file Search Complex processes Spelling checker Batch transaction processing < 2 seconds 2 to 12 seconds
