Describe the network data model 

The network data model is a type of database model that organizes data in a graph-like structure with interconnected records. Key features include:

1. **Network Structure:** Data is represented as a network of records (nodes) and relationships (edges). Each record can have multiple parent and child records, forming a more flexible structure than hierarchical models.

2. **Multiple Parent Relationships:** Unlike hierarchical models, where each child has only one parent, the network model allows records to have multiple parent and child relationships, facilitating complex many-to-many relationships.

3. **Data Access:** Access to data is achieved through navigating the network, which can involve traversing multiple levels of interconnected records. This provides flexibility in querying and retrieving data.

4. **Schema Flexibility:** The model is more adaptable than hierarchical models, allowing for more complex relationships and interactions between records.

5. **Use Cases:** Historically used in systems that require complex relationships, such as telecommunications, transportation networks, and some early database management systems.

The network data model is valuable for applications requiring intricate and multi-dimensional data relationships, offering flexibility and efficiency in managing complex data structures.