can you explain this 2 Flowchart

Flowchart for Voucher Payable VOUCHERS PAYABLE From Purchasing From Receiving From Vendor Requisition Receiving Report Invoice Purchase Order 5 File Pending Arrival of All Documents By Name Match Documents Preparation of Voucher Set Voucher 2 Requisition 1 Purchase Order 5 Receiving Report Invoice Approved Voucher 1 To General Accounting Voucher Copy 1 Treasurer On Due Date Flowchart for Treasurer (for Payment] TREASURER From Vouchers Payable Voucher Package Requisition 1 Purchase Order 5 Receiving Report 1 Invoice Approved Voucher 1 Review Documents, Prepare Check and Remittance Advice Check Signed (thus turning it into a remittance to vendor) Cancelled Voucher Package with Remittance Copy 3 Check Copy Remittance 2 Signed Check Remittance Advice 1 Number General Accounting Cancelled Voucher Package File To Vendor