Build a business case for ERP, Select a software package, Identify a project manager, Approve a budget and schedule.
The Project Phase
Software configuration, system integration, testing, data conversion, training, and rollout.
The Shakedown Phase
Bug fixing and rework, system performance tuning, retraining, staffing up to handle temporary inefficiencies. This is the phase in which the errors of prior phases are felt. New errors can arise in this phase also.
The Onward and Upward Phase
Continuous business improvement, additional user skill building, post implementation benefit assessment. Most of these activities are not performed.