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Shift changes, updates, and the on-call architecture in space shuttle mission control

E S Patterson¹, D D Woods

¹Institute for Ergonomics, Cognitive Systems Engineering Laboratory, Ohio State University, Columbus, OH 43210, USA. patterson.150@osu.edu

Computer Supported Cooperative Work : CSCW : an International Journal

|September 25, 2002

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Rapidly updating controllers during escalating situations is crucial for high-risk industries. Effective shift handovers, incorporating prior knowledge, are essential for preparedness and mitigating risks in

Keywords:

NASA Discipline Space Human Factors Non-NASA Center

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Area of Science:

Human Factors Engineering
Cognitive Systems Engineering
Risk Management in Complex Systems

Background:

Increasing interest in reducing personnel in high-risk operational domains.
Need for effective knowledge transfer during 'on-call' architectures.
Challenges in updating supervisory controllers in distributed, continuous processes.

Purpose of the Study:

Investigate the process of updating supervisory controllers during critical operations.
Understand how practitioners are brought up to speed in anomaly-driven environments.
Identify factors influencing effective status updates during shift changes.

Main Methods:

Conducted targeted field observations.
Observed sixteen shift changes (handovers) during the STS-76 Space Shuttle mission at NASA Johnson Space Center.
Focused on continuous, anomaly-driven processes in a complex, distributed environment.

Main Results:

Prior knowledge significantly impacts the effectiveness of controller updates.
Missing or inadequate updates leave flight controllers vulnerable and unprepared.
The quality of information transfer during handovers is critical for operational safety.

Conclusions:

Emphasizes the importance of robust handover protocols in 'on-call' systems.
Suggests strategies to mitigate risks associated with reduced personnel and rapid updates.
Highlights the need for incorporating prior knowledge into operational update procedures.