The Causes of Incorrect Restoration in the Written Inscription of Buildings of the Islamic Period of Iran based on the Theory of Foundation Data

Inscriptions in the decorations of building of the Islamic period have been noticed by artists since the early Islamic centuries. Overtime, inscriptions are damaged by various factors and need to be restored. Considering that every year in the country, a large amount of restoration operations are carried out on damaged historical monuments, including inscriptions. It was seen through the investigation that in most cases the restorations are tasteful and sometimes incorrect. In order to find the most important causes of incorrect restoration in written inscriptions, the qualitative method was used, and the grounded theory method was used to analyze the data. This research is practical in terms of purpose. The data was collected through field observations and interviews with 12 people related to the restoration of inscriptions and by purposeful sampling, and the data continued until theoretical saturation was reached. The results of the research showed that in addition to the lack of criteria that agree with the theoretical foundations of restorations, due to the prominence of the calligraphy and category, factors such as self-centered empiricism, the variety of viewpoints, knowledge and awareness of the traditional master craftsman and the rules of restoration and the lack of the artistic perspective of the traditional master craftsman. For various reasons, inscriptions have led to incorrect restorations, and of course, the lack of training courses by the institutions in charge of restoration has also been involved. Also, the variety of approaches in the restoration of inscriptions and lack of attention to the rules governing the art of inscriptions are considered as the most important consequences of the restoration of inscriptions.