Active Bow Tie windows after generation of controls and linking to personnel tasks are shown below. 

Some of the features include a) unlimited size of bow ties, b) bow tie branches can be expanded / collapsed

(by clicking on grey / white semi-circles), c) bow tie can be copied directly into MS Word or Excel or saved as

a graphics file (jpg), d) different colours of vertical bar in barrier boxes can be used to denote different

stakeholders, types of barriers, etc., e) fonts in the boxes can be customised, f) bow ties or their parts can be copied,

f) barrier box size can be increased to accommodate larger fonts, etc.