摘要:AbstractAn important task in business of any enterprise and, in particular, enterprises working in the industrial ecology is the timely transmission of data and relevant information. The article provides an overview and analysis of technologies of employee notification about any type of events. The model of optimization of data transmission over messengers is given. Today, there are a huge number of different applications for instant messaging: from ordinary messengers to social networks with built-in messaging modules. Among the usual messengers one can mention such as WhatsApp, Viber, Skype, Snapchat, KakaoTalk and others. Social network messengers include such examples as Vkontakte, Facebook, Instagram, etc. The special optimization model is developed for enterprises operating in industrial ecology, which allows to manage the notifications and alerts of employees involved in specific business processes.