Data collection and preparation before data entry by following up by phoning/visiting the companies that would not have returned the questionnaires by deadline.
Data cleaning by making crosschecks with the original questionnaires and making query letters or telephone calls if necessary to the suppliers of data.
Data dissemination by giving users required information i.e. attending and giving users the required data or to direct them to where they can get help and also extracting/compiling data as per user requirements .