**5. Related work**

As far as authors of the chapter know the conception of Engineering, SOC with design proce‐ dures as Web services has almost no complete competitors worldwide [3]. However, partial comparison to other systems is possible.

The original numerical algorithms are in the background of WebALLTED [3, 7, 8, 9], e.g., algorithms for analysis of steady or transient state, frequency, algorithms for parametrical optimization, yield maximization, and so on. The proposed approach to application design is completely different from present attempts to use the whole indivisible applied software in the grid/cloud infrastructure as it is done in Cloud SME, TINACloud, PartSim, RT‐LAB, FineSimPro, and CloudSME.

WebALLTED was compared to SPICE. The following positive features of WebALLTED were observed:


For evaluation the possibilities of WikiSPSM, it has been compared to other commercial (Mathematica) and open‐source (Scilab) products. All compared products support rich set of mathematical functions; however, Mathematica's list of functions [13, 18] is most distin‐ guishing for the problems of mathematical programming. WikiSPSM uses NetLib reposi‐ tory LAPACK [19] for C++ and FORTRAN, so they provide more functionality as Scilab [14]. In contrast to Mathematica and Scilab, WikiSPSM cannot reuse its functions directly, because it is Web based, and all the programs are executed on the server side, not locally. However, WikiSPSM shows best result by the possibility to extend system repository. Other systems have different single‐user‐oriented architecture. Moreover, they have only a little possibility to change system functions or extend the core of the system by user subroutines.
