Flexible customization and adaptation of the software before deployment into the information systems of separate organizations challenge large requirement conformity, project and specification management, design and architecture complexity, code integration, compatibility and interoperability issues, frequently causing the need of reengineering through the entire all the system development lifecycle. In this paper, we focus on these criteria and propose the use of decision tables as alternative business logic visualization formalism, used for business rule representation, which leads building a model of business logic and implementing it using software configuration parameters stored in the database and automatically generated methods of business objects implemented into the classes of business logic tier of n-Tier architecture.