Modelling Human Factors using the Systems Modelling Language

HFIDTC/2/WP2.8.9/1Version 2/ 24th September 2008operational circumstances. These Design Concepts are represented in the Human ViewsMeta Model in section 9 as ‘Formal Dependencies’ and ‘Formal Task BasedOrganisations’. Thus far in our modelling we have begun to understand who the users areand, with Activity and Sequence Diagrams, how they interact. However, to complete thispicture we need to understand how they will interact as an organisation.The process represented in Figure 7-12 implies an organisational hierarchy, with theGround Commander giving orders to the Tactical Picture Compiler and supervising theiroutputs. Together with the process represented in Figure 7-5 it implies that there is nodirect communication between the Tactical Picture Compiler and the Section Commanderon the ground. Figure 7-13 models those Organisation and Command Relationshipswithin H-Fly and illustrates the resulting default command structure.Figure 7-13 - Block Definition Diagram showing Command Relationships betweenOrganisational UnitsIn Figure 7-13 we have broken the Organisational Units out using Package Diagrams.Within each Organisational Unit we can see the Posts and manning, as indicated by theblock descriptors and numbers at either end of the relational lines. The Command32