Post on 20-Jan-2016
Meghna Krishnan
Rahul Nair
Kedar A. Shiroor
Dispatcher’s Rescue
Introduction
• What is the Stingerette
• Why this project?
• Quandary of the Dispatcher
User & Environment Analysis
• Dispatcher • Drivers• Students• Surrounding Environment
– Computer, Radio, Telephone – Constant Disturbances
Current System
Design Requirements
• Speed! Speed! Speed!• Reduced workload
– Typing– Recall
• More efficient operation• Robustness• Actual deployment
Overview of Design
• Design Features– Map Interface – Dual Monitor – GPS– Voice Input
• Discarded Design Components– In-car display, Input via Stylus, Voice assistant,
Smart board, Text entry and Hierarchical menu system for callers.
– Cost and practicality hampered deployment.
Prototype – Call listing
Prototype – Map interface
Interaction on Map Display
Usability Evaluation
• 2 Groups (10 users)– 2 Dispatchers– 8 Students (good campus knowledge)
• Training (Demonstrate basic functionality)• 10 Benchmark Tasks
– Time for each task– Errors
• Questionnaires– Pre-Session– Post-Session
• Interview
Expectations vs. Results
• Faster • Need time to learn• Problems with one handed use
• Difficulty with Vehicle layout
Yes Yes No
No (8/10)
Interface
User Suggestions & Comments
• Dispatchers– Mapping Bus Routes– Highlight frequent locations– No Voice!!
• Students– Swap vehicle no. with driver no.– Bigger vehicle icons on map– Building names instead of numbers– Increase size of map– Change map orientation
Conclusions
• Speed thrills!! • Primary Users loved it• Actual Deployment (without GPS)• Future Design Iterations
– Make the Interface User Modifiable– Integrate GPS with the system
– Improve map
Questions?