A method and device for generating a stream of data that is representative of at least an algorithm (44) of a software as a medical device. To reach that aim, the method comprises designing (41) the at least an algorithm using first programming language items of a determined domain-specific language (DSL), which is obtained using a determined language workbench (LWB) environment. The method further comprises simulating (42) an executing of the at least an algorithm with a simulation environment obtained using second programming language items of the determined DSL, the simulating being implemented in the determined LWB environment; testing (43) the at least an algorithm with at least a test function written with third programming language items of the DSL, the testing being implemented in the determined LWB environment; and generating (440) the stream of data.