This tool facilitates the communication between product/service developers and strategists in the organisation, by translating modular design rules for PSS development strategies. The tool will furthermore help to assess the company’s current and future product/service portfolio, through a structured and critical approach. The matrix tool maps a PSS offering in terms of its design and provides four discrete combinations (quadrants), based on the degree of the PSS' modularity and complexity. The mapping process, once completed, will help companies to identify critical areas for improvement and to evaluate their PSS strategy,with respect to other elements at the company’s discretion (e.g. competitors, shipowners, suppliers and customers), and based on these considerations devise how competitive strategies affect the system modularity and complexity.