Different types of sucros The range of sucros and their applications is wide. The smallest ones are like ordinary macros and they simplify tasks and key sequences needed repeatedly. The largest sucros are either teaching programs (this was the main application originally) or specialized expert applications combining Survo operations and other activities conditionally, giving prompts for the user, and writing complete reports with text, tables and graphical illustrations automatically from the data at hand. In all categories of applications, sucros lessen the need for making actual computer programs. Use of certain types of sucros is described separately: 1 = Teaching programs 2 = Key sucros 3 = Keyboard sucros S = More information on ready-made sucros