Abstract
MACUMBA is an application for SAS® programming developed in house at Bayer. It combines the interactive development features of SAS for Windows, the possibility of a client — server environment and unique ‘state of the art’ features that are missing in other SAS development environments. This paper covers some of the unique features that are related to SAS code debugging. This paper will begin by comparing the systems special code execution modes with the way this would be performed in interactive SAS. This paper will continue by presenting an overview of the graphical implementation of the single step debugger for SAS macros and DATA Steps. Finally, this paper will highlight the main issues faced during the development of MACUMBA.