A safe design of a structure is ensured if three requirements are being satisfied. The first one is that there is exact information concerning the loads applied to the structure. The second one is that there is exact information on behaviour and strength of the building materials. The third one is that efficient methods are being used to analyze and design the structure. In reality, these requirements can hardly be met completely, and to take the uncertainties involved in the available information into account, various factors of safety have been introduced into structural design.

Sazan Design and Quality Assurance team has access to complementary software to cover structural controls that are not commercially available and comprises a complete set of checklists that cover all parts of a design, as a controller in All parts of structural design work.