A Task-Based Analysis of Information Requirements of Tactical Maps
Abstract
A task-based approach for specifying and analyzing map information requirements was developed and demonstrated. A review of selected literature concerning the mapping process included methods for selecting environmental data to be shown on a map. Seven tactical tasks, representing common battlefield functions performed by different users and echelons were sampled and analyzed in depth. A military role-playing and doctrinal verification procedure was used to divide tasks into subtasks so that corresponding information requirements could be specified. Each subtask in turn was broken down into basic tactical questions about the environment. The data required to answer each question defined the information categories and levels of detail necessary for successful task completion. The resulting map-related information requirements were synthesized to generate representative map development guidelines. This synthesis--which emphasized information about vegetation, road networks, and built-up areas--was accomplished across tasks to identify those specific information needs which show either prominent commonality or uniqueness with respect to different tasks and user groups. Within the framework of these task-based comparisons, examples illustrate the types of implications that can be derived from the task-based analysis of information requirements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1979
- Accession Number
- ADA086502
Entities
People
- Betty M. Landee
- Dennis R. Foley
- Michael G. Samet