The SPEER System is a multipurpose edit and imputation system developed at the Census Bureau for use with continuous data under ratio edits. SPEER has been employed to edit the Auxiliary Establishment Report and the Enterprise Summary Report of the 1982 and 1987 Economic Censuses. It was also used to edit the 1987 Census of Construction Industries and an adaptation of SPEER was used to edit the 1987 Censuses of Manufactures and subsequent Annual Survey of Manufactures. This report discusses design and implementation issues for developing a multipurpose edit and imputation system. Such a system must contain methodologies that are general enough to be applicable for a variety of users and be able to incorporate survey specific information for users' specialized requirements. We describe the expert systems aspects of SPEER which address these needs and the interactive version of SPEER which has been successfully employed to review edit referral case.