Trees and hierarchical data in Intro to Computing - Flowchart & Logic Diagram

Process Overview

A tree is a way to organize data that looks like a family tree or an organizational chart. It starts with one main item called the root, and branches out to connected items called children. This structure helps us understand relationships and hierarchy in data.

Flowchart

Rectangle

Yes No↓

Rectangle

Yes No↓

Rectangle

This flowchart shows the step-by-step process of building a tree structure by starting with a root node and adding child nodes recursively until no more children remain.

Step-by-Step Trace - 13 Steps

Step 1: Start and create the root node named 'Company'.

Step 2: Check if 'Company' has children.

Step 3: Create child node 'HR' under 'Company'.

Step 4: Check if 'HR' has children.

Step 5: Create child node 'Recruitment' under 'HR'.

Step 6: Check if 'Recruitment' has children.

Step 7: Move back to 'Company' and create child node 'IT'.

Step 8: Check if 'IT' has children.

Step 9: Create child node 'Support' under 'IT'.

Step 10: Check if 'Support' has children.

Step 11: Create child node 'Development' under 'IT'.

Step 12: Check if 'Development' has children.

Step 13: No more children to add; finish building tree.

Diagram

          Company
          /     \
        HR       IT
        |      /    \
Recruitment Support Development

This diagram shows a tree structure with 'Company' as the root node. It has two children: 'HR' and 'IT'. 'HR' has one child 'Recruitment'. 'IT' has two children: 'Support' and 'Development'. This represents a simple hierarchy.

Flowchart Quiz - 3 Questions

What is the top node in a tree called?

A Branch

B Leaf

C Root

D Child

Key Result

A tree organizes data in a hierarchy starting from one root node branching out to child nodes, helping represent relationships clearly.