In our experience with conversions, these are never one-step processes. Expect this to be an interactive process as you add richness to your data as you expand the setup of your new system.
A necessary element is the file definitions of the outside system information. The internal data team will work closely with Harvest’s conversion team to ensure that the data elements of the old system are translated over to the new system.
The designated “owner” of the original master files should have roots in the operational side of the business to better relate to the use of the required information. This person does not need an information systems background but rather a detailed knowledge of the meaning of the current and historical data.