Review and assess technical specification, BOQ, drawings, etc. Perform material take offs prior to procurement purchase requisitions for the projects and report any irregularities or discrepancies on case to case bases. Prepare questions regarding the missing details or any other related concerns to be submitted to Consultant Evaluate revised drawings and shop drawings for any possible variation of quantity or materials specifications. Notify client thru letter for any variations discovered in drawings or material specifications. Prepare measurement sheet, bill of addition and omission, bill of abortive works for full package of variation order. Making Star rates for new item that is not in the original contract. Defend to Client about the variation made and making sure that it is based on the project contracts and specification. Progress Billing Evaluate computes and prepare monthly payment application 40 including structural, architectural, MEP 41 of the project in accordance to standard client format. Evaluate invoices of subcontractors and prepares payment certificate for the agreed measurement.