You work as an Enterprise Application Developer for Mansoft Inc.

You work as an Enterprise Application Developer for Mansoft Inc. You are participating in the

design for a Web-based Order Management System. There are a few configuration options, such as applicable tax percentage, repeat customer discount percentage, etc., which are applicable to all the users of the Order Management System. However, these configuration options might be changed in the future. Which of the following techniques will you use to maintain this information from the performance and maintenance point of view?