Second one is evaluation and assessments before the intervention projects. In the debate over what precisely is worth preserving in the phase of redevelopment in the historical cities. The dilapidated housing neighborhoods are the most recent battleground. That is, while towers, temples, and other monumental features are broadly accepted as worthy of preservation, the historic value of, for instance, the vernacular residential environment as a whole is still being hotly debated.(Abramson 2000) (Fig.16)