Abstract: A method for providing host instructions to a control module of a modular assembly system is provided. A graphical programming environment including sets of first and second graphical representations is presented to a user. Each first graphical representation corresponds to a statement block comprising a parameter. Each second graphical representation corresponds to one of assembly modules associated with a property. A user is facilitated to select at least one of the first graphical representations and provide values to the parameter of each selected first graphical representation. The user is facilitated to provide values to the property of one or more of the second graphical representations. Based on at least the selected first and second graphical representations and the provided values thereof, a set of host instructions are generated. The set of host instructions are transmitted to the control module for controlling operation of the assembly modules.