Explain the phrase, "Everything is an object".

The world around us is made up of objects such as people, vehicles, buildings, streets, mobiles, television, etc. Each of these objects has the ability to perform specific actions and each of these actions influences the other objects in some way or the other. The objects around us can be divided into the following categories:

1. Tangible Objects — These are the objects that we can see and touch. For example, chair, pen, book, door, etc.

2. Conceptual Objects — These objects exists as a conceptual entity that we cannot touch. We may or may not be able to see them. For example, an email, a bank account, a song, patents, etc.

3. Roles — Roles played by people, such as a student, a teacher or a clerk.

4. Events — An event is something occurring in a system or an organisation. For example, a sale or a purchase in a departmental store, someone's birthday, etc.