The word reactive has become popular today and has different meanings for different people, such as lightweight, real time, asynchronous, streaming, and so on. Reactive, in broader terms, refers to a set of design techniques or principles, and is a way to consider the system architecture in a distributed environment. It comprises tooling, design methodologies, and implementation procedures.
The analogy of a team can be used to describe a reactive system: individual players working with each other to achieve a desired goal. The interaction between the components is the main quality that differentiates a Reactive System from other systems. Components can operate individually or still work in harmony with others to achieve the intended result as a whole system. In other words, it is the system design that allows individual sub-applications to form a single logical system, perform specific tasks, and remain aware of each other. This enables decision-making, like load balancing...