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Situation Awareness Requirements Analysis

Competing Technologies. Competing Design Concepts. Final Design. From Theory To Practice: How Designing For Situation Awareness Can Transform Confusing, Overloaded Shovel Operator Interfaces, Reduce Costs, And Increase Safety. Field Testing. User-in the-loop Simulation Testing.

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Situation Awareness Requirements Analysis

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  1. Competing Technologies Competing Design Concepts Final Design From Theory To Practice: How Designing For Situation Awareness Can Transform Confusing, Overloaded Shovel Operator Interfaces, Reduce Costs, And Increase Safety Field Testing User-in the-loop Simulation Testing Rapid Prototyping Modeling E. Onal, C. Craddock, M.R. Endsley1 SA Technologies, Inc. 3750 Palladian Village Dr. 600 Marietta, GA 30066 Emrah@SATechnologies.com A. Chapman Barrick Gold Inc. 3700-161 Bay Street Toronto, Canada M5J 2S1 a.chapman@barrick.com • 1 U.S. Air Force Significant Challenges for Situation Awareness (SA) in Mining Operations Noise Dust, lighting Poor visibility Distributed operations Piecemeal addition of technologies Increasing use of automation Shiftwork, fatigue Technology-centric design Low SA Safety and Performance Suffers • Situation Awareness-Oriented Design (SAOD) for Electric Shovel Operator UI Concepts Requirements Development Goal-directed task analysis Increase software quality Improve communication Visual Design Stand out from competition Stay cutting-edge Branding Extend corporate identity Facilitate brand recognition SA-Oriented Design Improve operator performance Reduce workload and errors Design Principles Automation Error Management Alerts and Statuses Information Visualization The Situation Awareness-Oriented Design (SAOD) process is a user-focused design methodology based on SA theory. Using 50 design principles, SAOD provides a major advantage in developing effective system displays by directly addressing the issue of information content and how to optimize the presentation of that content for the user. As a key component of SAOD, the higher levels of SA (i.e., comprehension and projection) are directly supported via visual displays, significantly reducing unnecessary mental workload. SAOD is a three-phase process: SA requirements analysis SA oriented design SA measurement Measurement & Evaluation Measure progress Focus design and development efforts Hard proof for customers Style Guide Commonality Consistency Reuse Situation Awareness Requirements Analysis (Top-level goal hierarchy shown) Smart system design is built on a foundation of scientific research and an in-depth understanding of the goals and situation awareness requirements of each user. The innovative Goal-Directed Task Analysis (GDTA) that identifies user goals, the critical decisions individuals must make to achieve each goal and the SA needed for making those decisions. It is a proven methodology that has been applied to many successful systems and used for this project. Situation Awareness-Oriented Design Working from the SA Requirements Analysis, over 50 detailed design principles for supporting SA are applied that augment traditional design guidance. These design principles are based on a detailed cognitive model of human situation awareness, forming the foundation for linking situation awareness requirements to good system design. Select Situation Awareness-Oriented Design Principles Managing Operator Alerts Classified Categorized Fused Visual Audible Tactile Multi-modal alert notifications based on specific alert characteristics System Measurement and Evaluation Cognitive Walkthrough Operator Ratings “User friendly”, “Innovative” ,“Easy to understand” “Tabs make every screen easy to get at” “One stop shopping in terms of info[] provided” “Higher level of safety achieved with information available” “Greater awareness of possible hazards” “How come nobody else has thought of this before?” “When are we getting these new panels?” Measuring system effectiveness, as well as evaluating all aspects of system design, and its effect on information processing and job performance, is critical to a project’s success. Cognitive walkthroughs were used in the evaluation of these Shovel Operator UI designs. We recommend further testing and SA evaluation of this design with a larger user base performing simulated or operational tasks to validate the findings.Situation Awareness Global Assessment Technique (SAGAT) provides a sensitive and diagnostic measure of SA that can be used to evaluate user interface technologies, display concepts, and training programs. SAGAT has been carefully validated and successfully implemented in a variety of industries. Design, Test & Development Cycle This work was funded by the Global Mining Standards and Guidelines Group (GMSG). We would like to extend our thanks to Barrick Gold, Inc. and Teck Resources Limited for their support throughout this project, and for providing access to mining sites and electric shovel operators.

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