The purpose of the paper is to present a method that could support spatial planning and advocate rational choices. The research is checking whether multi-criteria decision analysis (MCDA) could be incorporated into decision making process at regional level. The focus is on the Development Strategy for Lower Silesia Voivodeship, however, the methodology presented in the paper could be adapted and used while creating development strategies for modern and smart cities. The research is divided into three main parts. First of all, a brief analysis of development strategy (formulated at regional level) is discussed: the scope, main objectives, and structure of the document are investigated. Second of all, possible solution, namely DEMATEL method, is presented. In the last step of the research, an example of using the method for the purpose of regional strategy formulation is offered. General evaluation of the proposed approach is conducted in order to identify strengths and weaknesses that could be addressed in further research. Literature review and own observations of planning practices indicate lack of comprehensive and advanced tools which could support decision making at local or regional level. It seems fair to say that there is a need to develop new solutions providing support for coordinated, rational, and transparent decision making under conditions of risk and uncertainty. The reflections presented in the paper are, among others, focused on supporting the decision making process in spatial planning in order to make the strategy making procedure more transparent, objective, and rational. The paper offers a methodology that may help answering the question “what strategy goals should be adopted?”. It seems fair to say that discussion about such methods could significantly improve the quality of strategy making process, thereby positively affect the functioning of the entire region/city and its community. Additionally, if these methods get a form of convenient and approachable computer tools, they could be probably included in the everyday work of spatial planners and policy makers.