Go Live refers to which of the following in an implementation project?

• A. The moment the project begins
• B. The final testing phase only
• C. The decommissioning of the legacy system
• D. The moment the new system is fully deployed into production

Answer: (D)

Go Live is the moment when the new system moves from development into real-world use in production. It means the system is fully deployed, users can start processing live transactions, and the environment is considered live for daily operations. Before this point, activities like planning, design, configuration, testing, and data migration occur, and after Go Live, ongoing support and stabilization (often called a hypercare period) help resolve any issues as users begin to rely on the system. This is distinct from starting the project, from testing phases, or from decommissioning the old system, which typically happen at different times in the timeline.