AP Module in EBS Oracle Apps

Basic of Account Payable module in Oracle Apps
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concept of AP Module by Technically ,
I am gonna to explain from Table Information AP Module and basic Knowledge you must understand

Table Name : AP_CHECKS_ALL

select distinct payment_type_flag from AP_CHECKS_ALL

Important columns : 
   AMOUNT : Payment Amount
   BANK_ACCOUNT_ID : longer used
   BANK_ACCOUNT_NAME : Payment identifier
   CHECK_ID NUMBER : Payment number
   CHECK_NUMBER : Supplier name
   VENDOR_NAME : Supplier name
   VENDOR_SITE_CODE : Supplier site code
   PAYMENT_TYPE_FLAG : Type of payment
   A = Payment Process Request
   M = Manual
   Q = Quick Payment
   R = Reunfund

-- source => http://oracleapps88.blogspot.com/2011/11/apchecksall.html