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A Review of the Event Analysis of Systemic Teamwork Methodology

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HFIDTC/WP1.1.3/10<br />

Version 2/ 31 October 2005<br />

Gas Insulated<br />

Circuit<br />

Breakers<br />

Airblast<br />

Notices/Locks<br />

NOC<br />

Check Open<br />

Lock & Caution<br />

Location<br />

SystemState<br />

Certificates<br />

Isolation<br />

Control<br />

Engineer<br />

Open Lock &<br />

Caution<br />

Accept<br />

Instructions<br />

Switching<br />

Wokingham<br />

Shutters<br />

Time<br />

Dressed<br />

Log Sheet<br />

Procedures<br />

Rear<br />

Refuse<br />

Switching Log<br />

Displays<br />

Front<br />

Earth Switches<br />

Isolators<br />

WE1000<br />

Points <strong>of</strong><br />

Isolation<br />

Open<br />

Busbar<br />

Circuits<br />

Electrical<br />

Contacts<br />

Closed<br />

Phone<br />

Current<br />

Voltage<br />

Faulty<br />

DBI Indication<br />

Switching<br />

Phone<br />

Equipment<br />

Lables<br />

Identity<br />

SAP<br />

Substations<br />

Figure 3-9 – Propositional Network for CDM phase four<br />

The results from <strong>the</strong> EAST analysis indicate that <strong>the</strong> key nodes in <strong>the</strong> Barking scenario<br />

network were <strong>the</strong> NOC operator and <strong>the</strong> SAP at Barking substation. The majority <strong>of</strong> <strong>the</strong><br />

communications observed occurred between <strong>the</strong> NOC and <strong>the</strong> SAP, and <strong>the</strong> operational<br />

loading figures indicate that <strong>the</strong> SAP at Barking conducted <strong>the</strong> majority <strong>of</strong> <strong>the</strong> work<br />

required, on instruction from <strong>the</strong> NOC operator. Over half <strong>of</strong> all <strong>the</strong> tasks involved were<br />

identified as teamwork tasks, and a medium level <strong>of</strong> co-ordination was calculated<br />

between <strong>the</strong> agents involved. The EAST analysis indicated that NOC operator assumes<br />

<strong>the</strong> role <strong>of</strong> commander during <strong>the</strong> scenario, and all work is undertaken only on his<br />

instruction.<br />

Advantages<br />

• The EAST approach <strong>of</strong>fers an exhaustive analysis <strong>of</strong> C4i activity. Activity<br />

is analysed using a number <strong>of</strong> different approaches, ensuring that a<br />

comprehensive analysis <strong>of</strong> <strong>the</strong> scenario under analysis is achieved.<br />

• The EAST output is extremely useful, <strong>of</strong>fering a number <strong>of</strong> different<br />

analyses and perspectives on <strong>the</strong> C4i activity in question. Each component<br />

method <strong>of</strong>fers a different representation or analysis <strong>of</strong> <strong>the</strong> C4i activity<br />

observed. For example, <strong>the</strong> SNA provides an indication <strong>of</strong> <strong>the</strong> key agents<br />

within <strong>the</strong> scenario and identifies communication links, <strong>the</strong> CDA identifies<br />

teamwork tasks and provides a co-ordination rating for each teamwork task<br />

step, and <strong>the</strong> propositional network component identifies <strong>the</strong> ideal<br />

knowledge (i.e. SA) required for effective task performance.<br />

22

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