The hierarchical database model stores data in a tree-like or parent-child structure, with records organized at different levels. It was developed in the 1960s to manage large amounts of manufacturing project data. Some advantages include conceptual simplicity, database security, data independence, integrity, and efficiency for large databases. Disadvantages include complex implementation, difficulty managing, lack of structure independence, implementation limitations, no data definition, and lack of standards.

1. WHAT IS THE HIERARCHICAL ?
Hierarchical database model is a data
model in which is stored in the form of
records and organized into a tree-like
structure or parent-child structure.
The hierarchical model was developed in
the1960s to manage large amounts of
data for manufacturing projects.

2. ADVANTAGE
 Conceptual simplicity.
 Database security.
 Data independence.
 Database integrity.
 Efficiency dealing with a large
database.
 Promotes data sharing.

3. DISADVANTAGE
 Complex implementation.
 Difficult to manage.
 Lacks structure independence.
 Implementation limitation.
 No data definition.
 Lack of standards.

5. Grop5
.Mohamed Sidiiq Shucayb
.Muktar Hasan Abdi
.Asiya Mohamed Faarah