A cloud-based platform for developing and managing critical IT infrastructures that process large amounts of data.

New information technologies have been created to support the design, operation management and development of critical IT infrastructures. Developed technologies provide a single platform which offer PaaS solutions for critical IT infrastructure implementation IaaS solutions for critical IT infrastructure deployment and production of appropriate IT management systems which performs big data processing. New models and methods have been created for integrateddevelopment, management, operation and
development of critical IT infrastructures. Introduced concept is based on the integration of different approaches for design and management such as: resource, process, event-oriented and structurally parametric approaches. Further, an experimental model of a PaaS cloud-based service platform and IaaS service were developed. Developed PaaS platform ensures the development and management of critical IT infrastructures and IaaS service supports PaaS platform instances implementation, management, maintenance and development functions of IT infrastructures.