The principal requirement during maintenance is to ensure that the existing quality of website is preserved to make the system operate and function properly along with any new enhancements that are needed because of the change in business requirements. At DTR Leisure, our specialised team uses preventive maintenance in which the overall quality of website is improved in order to ensure long-term maintainability. The possible activities in this process includes:

• Removal of unreachable and infeasible code
• Simplification of procedure interfaces and restructuring
• The addition of more comments
• Fault removal and improved test data generation

We also follow the policy of making extensive market research, upgrade impact analysis, asset management, and quality control during software maintenance to help control various risks involved.

As an added effort, our project team looks into the current state of the software, its complexity, structure, comments, dataflow and other valuable information, which are critical and need more attention, to enhance functionality, and to bring in stability, consistency and improvement into the overall performance of the application. Our services include:

• State of the art on-line help system
• Software support via email, phone and fax
• Frequent updates and enhancements
• Web based updates