Pacific Green Company (PGC)provides Landscaping Services to Individual and Corporate

Pacific Green Company (PGC)provides landscaping services to individual and corporate customers in southern California.Heather F originally founded PGC as a lawn mowing service while she attended graduate school.It became so successful that she delayed her teaching career to concentrate on building the company.This case describes PGC's processes for maintaining trucks.
PGC contracts for truck maintenance with local truck repair shops.A purchasing agent will negotiate a truck maintenance contract for each type of truck with a truck repair shop that specializes in those types of trucks.If the purchasing agent cannot negotiate satisfactory contract terms,the contracting process terminates.The process then starts over until contracts are in place.
When trucks are due for maintenance or repair,a PGC truck driver takes its trucks to the contracted shops.A PGC purchasing agent approves each maintenance invoice after carefully checking it against the contract terms and to confirm that the required maintenance or repairs are made.If the maintenance complies and the repairs were satisfactorily performed,PGC assigns a purchase number to track the purchase of maintenance.A PGC cashier then pays the truck maintenance vendors.If the invoice does not comply with the terms of the contract,the PGC purchasing agent returns the invoice for correction.If the repairs are not satisfactory,the purchasing agent takes the truck back so the shop can perform the repairs or maintenance satisfactorily.
REQUIRED: Using the description above,correct the following BPMN activity diagram to accurately depict the PGC truck contracting and maintenance process.