Designing Mimic Diagrams: Moving from Art to Science

Moore, Philip; Corbridge, Colin

doi:10.1177/154193129604000602

Cited by 4 publications

(6 citation statements)

References 1 publication

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“…In addition, dynamic data are visually represented in a quantitative manner with numerical indicators. These types of display are also referred to as "mimic" displays in the process industry (Moore & Corbridge, 1996). One potential advantage of the schematic overview display is that mimics have been used to design console operator displays for a long time.…”

Section: Functional Versus Schematic Overview Displaysmentioning

confidence: 99%

Impact of Functional and Schematic Overview Displays on Console Operators’ Situation Awareness

Tharanathan

Bullemer

Laberge

et al. 2012

Journal of Cognitive Engineering and Decision Making

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Console operators in process plants have to maintain a high level of situation awareness to operate the plant safely, effectively, and efficiently. An overview display is one of the primary displays in a control room that operators monitor to gain and maintain an understanding of the plant. In this study, the authors evaluated operator performance using two overview display formats. The first format, characterized as a functional design, included qualitative, graphical indicators for process parameters and organized the position of the indicators on the basis of functional relations of the process equipment. The second format, characterized as a traditional schematic display, showed connecting process lines between equipment and numerical fields to present process information. Both displays contained the same indicator values. Eighteen plant operators used both display formats to monitor a crude unit process for process parameters that deviated from normal values. We measured operators' situation awareness using think-aloud protocols and situation awareness global assessment technique, subjective workload, and usability ratings. Results indicated that operators' situation awareness was significantly higher when they monitored the process on a functional display compared with a schematic display. Their subjective workload and usability ratings also favored the functional overview display format. Implications of the findings for continuous process control and overview display design are discussed.

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Section: Functional Versus Schematic Overview Displaysmentioning

confidence: 99%

Impact of Functional and Schematic Overview Displays on Console Operators’ Situation Awareness

Tharanathan

Bullemer

Laberge

et al. 2012

Journal of Cognitive Engineering and Decision Making

View full text Add to dashboard Cite

show abstract

“…In addition, dynamic data is visually represented in a quantitative manner using numerical indicators. These types of display are also referred to as mimic displays in the process industry (Moore & Corbridge, 1996). One potential advantage of the S-L1 overview display is that mimics have been used to design console operator displays for a long time.…”

Section: Functional Versus Schematic Level 1 Overview Displaysmentioning

confidence: 99%

Functional versus Schematic Overview Displays: Impact on Operator Situation Awareness in Process Monitoring

Tharanathan

Laberge

Bullemer³

et al. 2010

Proceedings of the Human Factors and Ergonomics Society Annual

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It is important for console operators to maintain good situation awareness while monitoring process operations. A key component that helps operators achieve better situation awareness is how the information about the process is displayed on their console. Most oil and gas refineries still utilize traditional schematic displays and connecting lines between equipments to present process information. In this study, we designed a functional layout for an overview display. This layout shows the same process parameters as a traditional schematic display, but in a different format. Eighteen plant operators viewed both displays to monitor a crude unit process and their situation awareness was measured. Results indicated that operators' situation awareness was significantly higher when they monitored the process on a functional display compared with a schematic display. The implications of the findings for continuous process control are discussed.

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“…The traditional control system's operator interface was developed prior to multi-windowing environments and typically uses a single-window-per-screen approach, where an operator might have 4 to 8 screens on the console and the process graphics Moore & Corbridge, 1996). Navigation and operator input is supported through a dedicated, specialized keyboard.…”

Section: Features Of the Human-centered Interfacementioning

confidence: 99%

Establishing human performance improvements and economic benefit for a human-centered operator interface: An industrial evaluation

Errington¹,

Reising²,

Bullemer³

et al. 2005

PsycEXTRA Dataset

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A controlled comparison of a human-centered operator interface to that of a traditional distributed control system interface was conducted to establish the human performance improvement. Twenty-one professional petrochemical plant operators completed a series of matching process upset scenarios on their respective plants' high-fidelity training simulators. Each scenario contained an equipment or process failure previously experienced in the real plants. The results indicated that operators using the human-centered design completed scenarios an average of 7.5 minutes faster (41% improvement over the traditional interface), successfully dealt with failures in 96% of the cases (a 26% improvement), and recognized the presence of the failure before the first process alarm in 48% of the cases (a 38% improvement). These performance results were then used as input to a Monte Carlo simulation that estimated the economic benefit for the human-centered interface at $1,090,000 CAD per year for a plant of comparable size.

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Designing Mimic Diagrams: Moving from Art to Science

Cited by 4 publications

References 1 publication

Impact of Functional and Schematic Overview Displays on Console Operators’ Situation Awareness

Impact of Functional and Schematic Overview Displays on Console Operators’ Situation Awareness

Functional versus Schematic Overview Displays: Impact on Operator Situation Awareness in Process Monitoring

Establishing human performance improvements and economic benefit for a human-centered operator interface: An industrial evaluation

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