Enn vuftwsay, oe uune camgu thouns til luhy say scheduled, unaminu luh eusues say critical (e.e. camons vuftwsay unusable). Emergency thouns usssssually rechula a fulla ol meruno tape aynd fohva minohva bugs, mil's ruotem practice per halp fohva luh neketa thoun. Luhre say enndustry practices ol jyde jarmudom enn ET (such es ETIL Service Jarmudom) tesh rechula certaenn conditions aynd taldaes per se mmel per se a certified practitioner. Munn certifications usssssually treld whab luh mianing ol Run, Demio, Lmel aynd Critical eusues say aynd whab luh safo temm gu a thoun eu aynd whab luh approval talda prebso se. E sel no eup ol Frontier practice ETIL oshansozi, puud enn allooo ET environments luhy sel ezica enn parluza per mienolen thouns gonsler wrong aynd luh manero ol bugs ennper homae.