A development tool for use in specifying at least a sub-set of information required to generate control tools for an industrial process wherien the process is performed by mechanical resources, the control tools include execution logic, simulation facilitating tools, diagnostic tools, HMI tools and schematic diagrams, the development tool including a plurality of control assembles (CA), a separate CA for each mechanical resource type, which can be instantiated by selection and parameterization via an editor to specify the required information, after instantiation, the CAs compiled to generate the tools.