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An integrated checklist for architecture design of critical software systems

Bierska Adela, Buhnova Barbora, Bangui Hind

Annals of Computer Science and Information Systems

2022

Vol. 31

133-140

With the advancement of digitalization, critical information infrastructures, such as intelligent energy distribution, transportation, or healthcare, have opened themselves towards intelligent technological opportunities, including automation of previously manual decision making. As a side effect, the digitalization of these infrastructures gives rise to new challenges, especially linked to the complexity of architecture design of these infrastructures, to later support necessary software quality and safeguard the systems against attacks and other harm. To support software architects in the design of these critical software systems, well structure architectural knowledge would be of great help to prevent the architects from missing some of the crucial concerns that need to be reflected with built-in architectural mechanisms, early during architecture design.Given the narrow scope of existing guidelines, with the need of browsing and combining multiple sources, this paper proposes an integrated checklist to cover the breath of architectural concerns for the design of critical software systems, covering the need for built-in mechanisms to prevent, detect, stop, recover from and analyse intentional as well as unintentional threats to system dependability. Contrary to existing guidelines that typically focus on runtime incident handling, our checklist is to be used during architecture design to ensure that the system has built-in mechanisms to either handle the incidents automatically or include the right mechanisms to support the runtime incident handling.

Towards the Protection of Critical Information Infrastructures using a Lightweight, Non-intrusive Embedded System

Skitsas M., Efstathiou N., Charalambous E., Koutras N., Efthymiou C.

Journal of Polish Safety and Reliability Association

2016

Vol. 7, No. 1

187--192

Critical Infrastructures (CIs), such as those that are found in the energy, financial, transport, communications, water, health and national security sectors, are an essential pillar to the well-being of the national and international economy, security and quality of life. These infrastructures are dependent on a wide variety of highly interconnected information systems for their smooth, reliable and continuous operation. Cybercrime has become a major threat for such Critical Information Infrastructures (CIIs). To mitigate this phenomenon, several techniques have been proposed within the space of Intrusion Detection Systems (IDSs). IDS is an important and necessary component in ensuring network security and protecting network resources and network infrastructures. In this paper, we propose a lightweight, non-intrusive generic embedded system that aids in the protection of CIIs. The operation of the proposed system is based on state of the art IDS and other open source frameworks for the monitoring and supporting services and aims to fulfill the end-user’s requirements. The generic and non-intrusive nature of the system along with the low configuration effort allows rapid deployment to a wide range of CII nodes such as telecommunication routers and smart grid nodes, as well as for single endpoint protection.