1. A Presentation
on
Block and Relationship Diagramming
Submitted to:- Submitted By:-
Mr. S.K. Gupta Veeraj Vashishtha
(Professor Operations) (NU- MBA Year 1)
Veeraj Vashishtha NU-MBA

2. What are
Blocks?
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3. Shipping
Assembling
Shipping
Finishing Unit
Production
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4. Block Diagramming
 Block Diagramming is a technique of designing a
process layout and is used when quantitative data is
available.
 Block diagramming is one way to visualize the amount
of movement that occurs between departments.
 Different blocks represent different departments of the
organization.
 The main objective is to reduce the transportation cost
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5. Production
Assembling
Shipping
Shipping Finishing Unit
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6. Terms used in Block Diagramming
 Unit Load: Refer to the quantity in which
material is moved/transported from one
department to the other.
 Non Adjacent Load: Refer to the load
between departments which are not adjacent
in their location.
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7. Process of Block Diagramming
• Create a Load Summary Chart
Step 1
• Calculation of Composite Movement
Step 2
• Preparation of Trial Layouts
Step 3
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8. Example of Block Diagramming (cont.)
Step 1: Load Summary Chart
Department 1 2 3 4 5 6
1 -- 20 20 80
2 -- 10 75
3 -- 15 90
4 -- 70
5 --
6 --
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9. Example of Block Diagramming (cont.)
Step 1: Gather Information (Initial Layout)
2 4 3
6 5 1
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10. Example of Block Diagramming(contd)
Step 2: Calculation of composite Movements
10
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11. Example of Block Diagramming (cont.)
Step 3: Develop a block plan (Show new traffic)
5 70 4 15 3
75 20 90
20 80
2 1 6
10
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12. Exercise on Block Diagramming
Load Summary Chart
1 2 3 FROM/TO DEPARTMENT
Department 1 2 3 4 5
1 — 100 50
2 — 200 50
4 5 3 60 — 40 50
4 100 — 60
5 50 —
Initial Layout
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13. GRID 1.
110
100 200
1 2 3
150 50
50
60
4 5
40
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14. Solution.
Final Chart
Nonadjacent Loads: 0
2 3 200 loads
2 4 150 loads
1 3 110 loads
By adding the
1 2 100 loads loads of 1 to 3
4 5 60 loads i.e.50 & 100 150
3 5 50 loads 3 to 1 1 2 4
2 5 50 loads i.e.60
200 50 40 60
3 4 40 loads
110
1 4 0 loads 50
1 5 0 loads 3 5
Grid 2
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15. Relationship Diagramming
 Schematic diagram that
uses weighted lines to
denote location preference
and is used when
quantitative data is not
available.
 Muther’s grid
 format for displaying
manager preferences
for department
locations
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16. Relationship
Diagramming: Example A Absolutely necessary
E Especially important
I Important
O Okay
U Unimportant
Production X Undesirable
O
Offices A
U I
Stockroom O E
A X A
Shipping and U U
receiving
U O
Locker room O
O
Toolroom
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17. Relationship Diagrams: Example (cont.)
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18. Relationship Diagrams: Example (cont.)
(b) Relationship diagram of revised layout.
Stockroom
Offices Shipping
and
receiving
Locker Key: A
Toolroom Production
room E
I
O
U
X
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19. Veeraj Vashishtha NU-MBA