Sustained competitive advantages require continuous improvement for a company to maintain its strength or weakness in the marketplace. Information technologies play a crucial role for a competitive future. To create sustainable growth, role and performance measurement of information technologies in management processes such as strategic planning, audit etc. steadily increases in today's highly competitive business world. The purpose of this paper is to focus on technology strategy of a strategic planning tool and case of Siemens AG. The initiator of the technology was Siemens Turkey where the tool of regional strategic planning (Dynamic Strategic Planning System (c) (DSPS)) was also developed for the first time among the regional companies of Siemens AG. Siemens Turkey has been the responsible for the development since 2001 and decided an aggressive technology strategy to make a radical innovation after the criteria are evaluated. Technology strategy is questioned during two in-depth interviews with a manager and a technical system administrator and technology strategy of DSPS is mapped with S-curve according to inputs from in-depth interviews.