TY - JOUR AU - Bondarenko, Ihor AU - Dorohyi, Yaroslav AU - Stirenko, Sergii AU - Shemsedynov, Tymur PY - 2018/06/30 Y2 - 2024/03/28 TI - Analysis of critical IT infrastructure designing problems for a ministry JF - Collection "Information Technology and Security" JA - ITS VL - 6 IS - 1 SE - CYBERSECURITY AND CRITICAL INFRASTRUCTURE PROTECTION DO - 10.20535/2411-1031.2018.6.1.153207 UR - https://its.iszzi.kpi.ua/article/view/153207 SP - 96-107 AB - <p align="justify">The problems of creating a critical IT infrastructure of the ministry are analyzed. The classic model of cloud services, which consists of three layers, is considered. It has been shown that the specificity of the tasks performed by the ministries (departments) puts the developer with increased requirements for reliability, safety, availability in the automation of their processes. As a result, it has been shown that the use of only these three layers to create a critical IT infrastructure of ministries (departments), even as a private cloud, is no longer sufficient. Several additional layers are proposed for the classical cloud service model, such as BaaS and XaaS. The first layer, Business as a Service (BaaS), includes automation of process management at the organizational level, including monitoring of performance indicators, analytical reports, data consolidation and centralized enterprise level integration. The second layer - everything as a service (XaaS), provides total automation of the industry level, including the introduction of industry standards, the automation of cross-integration of many enterprises. A further analysis of the developed model has been carried out and it has been determined that in order to create a single information space of the ministry (agencies) as an object of informatization with a critical IT infrastructure, it is necessary to put in its implementation a number of new possibilities. They stipulate the need to upgrade both the hardware infrastructure, both system and application software. Therefore, the creation of critical IT infrastructure with these capabilities requires the implementation of new specialized means of data transmission and storage of information. These tools are characterized by a number of key characteristics such as interactivity, multi-tieredness, heterogeneity, distribution, and dynamic modification of data structures during the lifecycle of critical IT infrastructure information systems in accordance with meta-models of the subject area based on metadata interpretation. All of the above points to the need to put into the model another GaaS last layer (the transition to global integration as a service). The last part of the article provides an analysis of the requirements for constructing a critical IT infrastructure.</p> ER -