Mr. Allah Dad Khan gave a lecture on different types of diagrams. He defined 13 types of diagrams including block diagrams, cluster diagrams, ladder diagrams, network diagrams, round diagrams, spiral diagrams, timeline diagrams, tree diagrams, triangular diagrams, activity diagrams, comparison diagrams, decision diagrams, and flow diagrams. Each diagram type was used to represent a different concept or relationship.

2. Graphic Aids .3.Diagram
A Lecture
By
Mr. Allah Dad Khan
Visiting Professor
The University of Agriculture
Peshawar

3. 1.Block Diagram
• A block diagram is a diagram, in which the principal parts or functions are
represented by blocks connected by lines, that show the relationships of
the blocks

4. 2.Diagram
• Cluster diagrams represents some kind of
cluster. ( Astronomy clusture diagram)

5. 3.Ladder Diagram
• Diagrams in some shapes of a ladder, with two
or more spots

6. 4.Net Work Diagram
• A network diagram is any diagram
representing a network and or a diagram with
buidling blocks in the shape of a network

7. 5.Round Diagram
• Diagrams in a round shape

8. 6.Spiral Diagram
• Diagrams representing a spiral shape

9. 7.Time Line Diagram
• A timeline is a graphical representation of a
chronological sequence of events, also
referred to as a chronology.

10. 8.Tree Diagram
• Tree diagrams with tree-like shapes

11. 9.Triangular Diagram
• Diagrams in a triangular shape

12. 10.Activity diagram
• Activity diagrams show a sequence of
activities

13. 11.Comparison diagram
Diagrams that compare objects between
themselves, for example to show the largest
planes or buildings

14. 12.Decision diagrams

15. 13.Explanatory diagrams

16. 14.Flow diagrams