The expense claims web mashup plugin enhances an HR management application by extending the expense claims capabilities through a well-known interface. Most salaried workers who claim expenses are familiar with the process of expense claims, which normally involves filling up forms and attaching evidence receipts. These claim submissions are then routed to their managers who in turn approve or reject them accordingly. Approved claims are vetted and archived for audit purposes, while the reimbursement payment is done at the end of the month.