While security architecture consists of resources and components of a security system, it sets the direction for the security design which includes techniques and methods. This ultimately facilitates security in hardware and software.

Security architecture ensures alignment of the business strategy and IT security – and hence builds the bridge between business, IT, and security. As a side effect, projects and features can be rolled out more quickly.

An architecture and plan provide the basis for informing internal and external stakeholders of the current and future situation in a prompt manner. It gives the opportunity to effectively collaborate and work toward accomplishing shared goal.

Artifacts can serve as proof e.g., when a company needs to obtain certifications. It is therefore easier during the initial certification or re-certification that the processes are “lived”. Reuse reduces the time and effort required for testing and facilitates the use of existing interfaces.

It is possible to develop modular, secure IT with standardized components that have built in security and already tested. This ensures that IT is used in a consistent manner and promotes clear responsibilities. Furthermore, it reduces costs with fewer components used by numerous apps.