“…The database of computer learning systems enables the use of the following Web-based computer learning systems (Kaklauskas et al 2006a(Kaklauskas et al , 2006b(Kaklauskas et al , 2007c(Kaklauskas et al , 2009(Kaklauskas et al , 2010aNaimavičienė et al 2007;Urbanavičienė et al 2009;Zavadskas et al 2010aZavadskas et al , 2010b: construction, real estate, facilities management, international trade, ethics, innovation, sustainable development and building refurbishment, etc. The above systems have been developed by using multiple criteria methods (Banaitiene et al 2008;Kaklauskas et al 2007aKaklauskas et al , 2007bKaklauskas et al , 2010bKanapeckiene et al 2010;Mickaitytė et al 2007Mickaitytė et al , 2008Šliogerienė et al 2009;Tupenaite et al 2010;Turskis et al 2009;Viteikienė & Zavadskas, 2007;Zavadskas et al 2008Zavadskas et al , 2009Zavadskas et al , 2010c as were developed by the authors.…”