Systematic approach for sustainable conservation

The conservation of cultural heritage and the renovation of other historical buildings requires a whole and interdisciplinary approach, cooperation between experts and the use of modern computer-based instruments, appliances and tools with a single goal – sustainable renovation. The sustainable approach also requires a high professional level of activity and time to study and do research on the buildings. The criteria for renovation are made-up of agreements and compromises between the interests of the local government and the common motives and interests of the individual owners and prospective investors. In order to achieve a sustainable renovation, certain supportive elements are needed such as financing, successful project management, and an adequate number of qualified craftsmen with special skills. This article tries to clarify what types of systems and subsystems need to be considered when renovating cultural heritages, when and why we come to deal with a probability – stochastic system, and what would be needed to successfully re-establish a determined system. By analysing the different methodologies within the framework of a complete renovation, we are developing a methodology for introducing the determined system for renovation projects and a model for analysis and decision-making during the preliminary design with the use of modern IT.