Major Design Elements

The Reporting Tool consists of four nodes hosting five major design elements. These are as outlined below with subsequent chapters giving more detailed explanations of each of the components.

Database Server Node

Component	Description
FLINT Output Database	The FLINT Output Database is the first major design element of the Reporting Tool. It sits on the Database Server Node and is implemented as a PostgreSQL Database.
Reporting Tool Database	The Reporting Tool Database is the second major design element of the Reporting Tool. It sits on the Database Server Node and is implemented as an Apache Cassandra Database.

Application Server Node

Component	Description
RESTful Web Services	The Reporting Tool’s RESTful Web Services are the third major design element of the Reporting Tool. They sit on the Application Server Node and are implemented as Reactive Spring Webflux Microservices. They are packaged as Docker Containers which are in turn orchestrated by Kubernetes.

API Server Node

Component	Description
API Gateway	The Reporting Tool API Gateway is the fourth major design element of the Reporting Tool. It sits on the API Server Node and is implemented using Traefik HTTP reverse proxy and load balancer.

Personal Computer Node

Component	Description
Reporting Tool Client	The Reporting Tool Client is the fifth major design element of the Reporting Tool. It sits on Clients PCs as a Browser-Based Application and is implemented as an Angular Application.