to develop and validate applications to support the business requirements. Deployment When the three tracks are complete they all end up in the final deployment. This phase requires planning and should include pre-deployment testing, documentation, training and maintenance and support. Maintenance When the deployment has finished the system will need proper maintenance to stay alive. This includes data reconciliation, execution and monitoring and performance tuning. Growth As the project can be seen as part of the larger iterative program, it is likely that the system will want to expand. There will be projects to add new data as well as reaching new segments of the business areas. The lifecycle then starts over again. References Kimball, R., Ross, M., Thornthwaite, W., Mundy, J., & Becker, B. (2008). The data warehouse lifecycle toolkit (2nd ed.). Wiley Publishing, Inc. Data warehousing