Abstract In an attempt to create a comprehensive IaaS solution, DTGOV introduces several mechanisms into the IaaS architecture. These systems are expected to ensure scalability, reliability, optimal utilization of resources, and user identity security. With these systems in place, the solution is capable of handling a wide range of tasks typical for the architecture. Introduction An IaaS management architecture is a complex entity. For it to comply with safety and usability requirements, several components must be assembled and configured. The following paper provides an overview of the architectures used in a solution described in the case study. Case Summary DTGOV is aiming to create a comprehensive architecture for managing its infrastructure-as-a-service (IaaS) solution. Due to the complexity of the system, the solution needs to incorporate several components critical for its performance. First, it is necessary to ensure the integrity of the network used by IaaS, which is achieved by implementing logical network perimeters that establish a network topology. Second, it is important to maintain resource availability, which can be done by deploying virtual server clusters managed by a combination of monitoring and workload distribution mechanisms. Third, separate systems should be able to communicate with each other. This goal is achieved by incorporating identity and access management (IAM) and single sign-on (SSO) systems to propagate the authorization data across the entire IaaS using a uniform security context. Finally, the system needs to scale in response to changing usage conditions. DTGOV solves this task by configuring automated scaling listeners and providing template configurations for virtual servers. Architecture Description The first key component used by DTGOV in its IaaS is a resource cluster. As a rule, clusters are established to improve performance by grouping diverse IT resources in respective groups. The scheme provided in the case study identifies two types of clusters. The first is a server cluster comprised of virtual servers. Such a cluster can be established by configuring hypervisors to implement virtual server instances optimally in terms of hardware specificities and regional location (Liu, Jin, Xu, & Liao, 2013). The architecture can be further enhanced by a reservation of resources for redundant instances, which was used in the case at hand. Clustering also allows for the migration of instances between physical servers, providing the system with additional scalability. The second type is a database cluster, which utilizes numerous storage devices to replicate data managed by the system. The purpose of such a cluster is data integrity and safety. The cloud storage device mechanisms mentioned in the case are likely implemented using the virtualization platform. The use of a load balancer and a failover system is consistent with typical approaches to the described component. Next, the resource management system is an important part of the IaaS at hand. The multitude of tasks set by cloud consumers and cloud providers requires effective allocation of resources that need to be automated to be executed on time. In the case of DTGOV’s system, resource management is done primarily by the v