According to accomplished experts, an API is a set of rules and tools for initiating and governing how business workloads interact. Now, with the faster proliferation of the cloud, the interaction level has gone up and beyond business applications. That is, scores of IT optimization and automation services also have to interact with one another in order to simplify and streamline business-process automation. APIs have to uniquely and uniformly find one another, initiate data interchange, and verify information for software applications to leverage one another for their business benefits. Let's use a few comparisons to explain APIs and their roles and responsibilities in our increasingly connected world.
If applications were vehicles on the road, APIs would be the traffic rules. The rules prescribe how vehicles must behave...