The first task in this BPMN model is identified by the id "7ABF8F6F-1642-4132-A186-196D0BF9BC9A".  

This element has a type of "bpmn:StartEvent" which signifies the beginning of the process.  Following the sequence flow with id "0DB636CD-0277-458E-AEA5-498A396D451C" leads to the next task "Prepare implements" with id "F07BCAFC-5CF4-4C22-A15F-2806A505CD3C".
