Power of Hierarchy
Any system of persons or things ranked one above another.
It is arrangement of items to represent their position or power.
 |
| Example of Hierarchy |
Elements or objects are arranged at different levels depending on their power or capacity.
Importance of Hierarchy
As items or things are arranged in order of their importance, it is easy to locate them based on their importance or power.
In organizations we can know the authority of each individual.
 |
| Power of Hierarchy |
Advantages and Disadvantages of Hierarchy
Advantages
- Hierarchical Model is simple to construct and operate on.
- Corresponds to a number of natural hierarchically organized domains.
- Language is simple.
- Navigation and procedural nature of processing.
- Database is visualized as a linear arrangement of records.
- Little scope for "query optimization".
Examples of Hierarchy
 |
| Example 01 |
 |
| Example 02 |
Notes
 |
| Page no: 01 |