👉 Phylarchical refers to a hierarchical data structure in computer science and information systems. It is a tree-like representation of a database, where each node represents an entity or object with its own set of attributes and relationships to other nodes within the hierarchy. In a phylarchical data structure, each node has a parent node, which is also a child of the root node. The parent-child relationship ensures that all the children are direct descendants of the parent, ensuring that each node in the tree represents an