There are different methods for introducing an ERP system. In general, a distinction is made between the waterfall model and an agile approach. We have developed our own agile methodology, which is a combination of both: first, we carry out the rough planning within 3-4 days (all required functionalities, project start, framework conditions). Specifications and functional specifications are not required at all.
We then set about implementing the project in 4-week iterative phases or sprints. For each phase, we plan the sprint, conceptualize the tasks and the budget and implement them. At the end, the customer must test the implementation of a phase and assess the quality. Only then does the next implementation phase begin. Tasks that have not been completed are transferred to the next implementation phase. This procedure is repeated in each of the implementation phases.
At the end, the implementations are compiled. We then train your team and have them test the system extensively before we go live with it.