## 2 The SRA Proposed Approach  
As presented in Table 1, there are many different SRA tools already developed worldwide, many of them available as freeware software, and some of them are even open-source tools. So, the development of new software could be considered a waste of time, unless some new developments were introduced, to account for the individual characteristics of school buildings, for example. The main idea of the proposed approach was to transform some already developed computer routines into a set of independent computer objects that are totally interconnectable with each other. With this approach, it is possible to create new computer tools just by assembling a set of independent computer objects. These objects were obtained by dismembering the SIMULSIS [44,45] and the EC8 spec [46] software, namely for the creation of the hazard and vulnerability modules. \begin{table}
\begin{tabular}{l l l l} \hline \hline
**SRA Tools** & **Hazard** & **Vulnerability** & **Exposure** & **GIS Output Results** \\  & **Module** & **Module** & **Module** & \\ \hline AFAD-RED [22] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{2}\) & \(\boxed\)\({}^{3,4}\) & \(\boxed\)\({}^{6}\) \\ ARMAGEDOM [23] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{3,4}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ CAPRA+CRISIS [24,25] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{3}\) & \(\boxed\)\({}^{5,6}\) & \(\boxed\)\({}^{2}\) \\ CEDIM [19,26] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{3}\) & \(\boxed\)\({}^{5,6}\) & \(\boxed\)\({}^{2}\) \\ ER2-Earthquake [27] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{4}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ ELER [19,28] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{3,4}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ EPEDAT [29] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{3}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ EQQRM [19,30] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{3}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ HAZUS [31] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{4}\) & \(\boxed\)\({}^{5,6}\) & \(\boxed\)\({}^{2}\) \\ InaSAFE [22] & \(\boxed\)\({}^{\boxed}\) & \(\boxed\)\({}^{5}\) & \(\boxed\)\({}^{2}\) \\ KOERILoss [33] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{4}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ LNECLoss [19,34] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{3,4}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ MAEViz [19,35] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{4}\) & \(\boxed\)\({}^{5}\) & \(\boxed\)\({}^{2}\) \\ MDLA [36] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{4}\) & \(\boxed\)\({}^{7}\) & \(\boxed\)\({}^{8}\) \\ OpenQuake [37] & \(\boxed\)\({}^{1,2}\) & \(\boxed\)\({}^{3}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ QLARM [38] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{2}\) & \(\boxed\)\({}^{6}\) & \(\boxed\)\({}^{2}\) \\ QuakeIST [39] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{3,4}\) & \(\boxed\)\({}^{5,6}\) & \(\boxed\)\({}^{2}\) \\ RiskScape [19,40] & \(\boxed\)\({}^{1}\) & \(\boxed\)\({}^{3}\) & \(\boxed\)\({}^{5,6}\) & \(\boxed\)\({}^{2}\) \\ SEIMOCARE [41] & \(\boxed\)\({}^{2}\) & \(\boxed\)\({}^{4}\) & \(\boxed\)\({}^{5}\) & \(\boxed\)\({}^{2}\) \\ SELENA [42] & \(\boxed\)\({}^{1,2}\) &In the PERSISTAH software, three modules were implemented: (1) The school database module (the exposure module), which consists of a computer object specifically developed for the PERSISTAH project, with all the information about the school buildings like general characteristics of the buildings, namely the geographical coordinates and some photos of the buildings; (2) the seismic action module (the hazard module), where a code-based seismic action (an EC8-type response spectrum) or an earthquake scenario can be selected, through the use of several independent computer objects developed for that task, which are also shared with other developed software (like the new versions of the SIMULSIS and EC8 spec software); and (3) the damage assessment module, which is able to evaluate the seismic behaviour of an individual building.