Which ERP rollout method is characterized by all systems going live at once?

The Big Bang rollout method is characterized by all systems going live at once. This approach involves implementing the entire enterprise resource planning (ERP) system across the organization in a single, coordinated release. The key advantage of the Big Bang method is that it allows for immediate standardization of processes and promotes a quicker transition to the new system. Organizations may opt for this method when they want to minimize the duration of transition to avoid prolonged disruptions that can occur with staggered implementations.

In the Big Bang approach, it is essential for comprehensive planning and testing to be conducted beforehand, as any issues that arise once the system is live can affect all operations simultaneously. This method is generally more suited for organizations that are ready for a significant change and have the resources to manage the challenges that come with such a wide-scale implementation.