A Review of the Event Analysis of Systemic Teamwork Methodology

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HFIDTC/WP1.1.3/10 Version 2/ 31 October 2005 Example • For large, complex networks, it may be difficult to conduct a SNA. Application time is a function of network size, and large networks may incur lengthy application times. • The data collection phase involved in a SNA is also resource intensive. • Some knowledge of mathematical techniques is required. • It is difficult to collect comprehensive data for a SNA. For example, a dispersed network of ten agents would require at least 10 observers in order to accurately capture the communications made between all agents. The following example is taken from an EAST analysis of a civil energy distribution scenario (Salmon et al 2004). The scenario involved the return to service of the Brimsdown-Tottenham-Waltham Cross Circuit and took place at Brimsdown, Tottenham, Waltham Cross substations and the National Grid Transco (NGT) Network Operations Centre (NOC) in Warwick. The agents involved in the scenario are presented in Table 20. Table 20 - Agents involved in the return to service scenario Role of agent A NOC control room operator Role of agent B SAP/AP at Tottenham substation Role of agent C SAP/AP at Waltham Cross substation Role of agent D SAP/AP at Brimsdown substation Role of agent E Overhead line party contact Role of agent F WOK control room operator From the list of agents identified for the scenario, a matrix of association can be constructed. This matrix shows whether or not an agent within the system can be associated with any other agent, specifically through frequency of communications. The association matrix for the switching scenario is presented in Table 21. 55
HFIDTC/WP1.1.3/10 Version 2/ 31 October 2005 Table 21 - Agent association matrix A B C D E F A 0 2 2 2 1 4 B 8 0 0 0 0 1 C 4 0 0 0 0 0 D 8 0 0 0 0 0 E 1 0 0 0 0 0 F 0 1 0 0 0 0 Finally, a social network diagram is created. The social network diagram illustrates the proposed association between agents involved in the scenario. The numbers associated with the links between the agents in the system indicate the strength of association. The strength of association is defined by the number of occasions on which agents exchanged information. The direction of association is represented by directional arrows. The social network diagram is presented in Figure 3-14. Figure 3-14 - Return to service social network diagram. 56
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A Review of the Event Analysis of Systemic Teamwork Methodology

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