Interaction models shows the interaction between the components of a system, or between the…

An abstract class is a class that can’t be instantiated; can’t create objects from it.…

Inheritance When we say, “a student IS-A person”, “an employee IS-A person” “a car IS-A…

Whenever you create an object, you need to construct that object, meaning you assign all…

Structural models of software display the organization of a system in terms of the components…

Conceptual Model Once we’ve some use cases or user stories, the next thing we can…

The Concept Of Object-Orientation Object-orientation is what’s referred to as a programming paradigm. It’s not…

This last section is all about examples of real world problems, and what solutions we…

With Spark core, we can analyze batch of data (say, daily). With Spark Streaming, we…

So far we assumed data is sitting on the cluster, but, we didn’t say how…