1. In a software development system, a method for assisting a user in creating source code for a computer program in a high-level programming language, the method comprising: at a current user inputting location within a piece of source code under development, detecting a need for assisting the user with input for the creation of the piece of source code; determining fitting source code elements suitable for input at said current inputting location; and providing to the user said list of fitting source code elements, wherein said determining the fitting source code elements includes determining for each fitting source code element a respective fitting probability of the source code element in the current inputting location, and wherein said providing to the user said list of fitting source code elements includes associating to each fitting source code element in the list an indication of the respective fitting probability.