pairwise weighting determining excel sheet

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DESCRIPTION

The EPRA rainwater catchment and irrigation system project group used these sheets in order to determine the best plan to use in the irrigation system without the bias of opinion. It is used to scientifically make a project decision.

TRANSCRIPT

PAIRWISE WEIGHTING

Complete the 3 sheets IN ORDER (i.e. 1, 2, 3)

Instructions for this sheet:1. Enter your Specifications in this column (they will popluate throughout the spreadhseet) - ONE ROW for each specification. If a need or stakeholder has multiple specifications, simply repeat that need/stakeholder in multiple rows2. If you need less than all 50 Specifications (a likely case), delete the unneeded rows and columns (delete the whole row/column ( not just the cell contents), but NOT the statistics columns!)3. For each comparison enter 0, 1, or 2 in the blue box.

Stakeholder(s)

Pair

wis

e W

eig

hts

icole Sugermanicole Sugermanicole Sugermanicole Sugermanicole Sugermanicole Sugerman

Local UsersLocal UsersLocal UsersCommunityCommunityConsumers

icole SugermanCommunity

Complete the 3 sheets IN ORDER (i.e. 1, 2, 3)

Instructions for this sheet:1. Enter your Specifications in this column (they will popluate throughout the spreadhseet) - ONE ROW for each specification. If a need or stakeholder has multiple specifications, simply repeat that need/stakeholder in multiple rows2. If you need less than all 50 Specifications (a likely case), delete the unneeded rows and columns (delete the whole row/column ( not just the cell contents), but NOT the statistics columns!)3. For each comparison enter 0, 1, or 2 in the blue box.

Specification Values

Need(s) Units Ideal Low Installation Cost $ 300

Less Time to water the beds Hours 0.5Low Maintenance costs $/ Year 20

High percentage of useable water $ 100Water the beds regularly Times/ Week 4System will not be stolen yes/ no yes

Low training time for local residents hours 0.5A durable system Years 7

tem that can be dismantled in a short time Min 15em does not intrude in current open space Feet^2 20

System does not block entrances Entrances 2High vegatable yield % 100

Low amount of excess physical labor min 0Environmentally friendlyn (aproximate) Low

1. Enter your Specifications in this column (they will popluate throughout the spreadhseet) - ONE ROW for each specification. If a need or stakeholder has multiple specifications, simply repeat that need/stakeholder in multiple rows2. If you need less than all 50 Specifications (a likely case), delete the unneeded rows and columns (delete the whole row/column ( not just the cell contents), but NOT the statistics columns!)

Specification Values

Marginal800 Interview

1 Interview70 Estimation of need85 Interview2 Interview

yes Interview1 Estimation of need2 Interview

25 Estimation of need100 Interview

1 Interview80 Interview/ Apparent need20 Estimation of need

Medium Estimation of need

IMPORATANCE REFERNCES

- ONE ROW for each specification. If a need or stakeholder has multiple specifications, simply repeat that need/stakeholder in multiple rows2. If you need less than all 50 Specifications (a likely case), delete the unneeded rows and columns (delete the whole row/column ( not just the cell contents), but NOT the statistics columns!)

Cost

Cost 1

Time it takes for the bed to be watered 0

Annual Maintaniece cost 0

Percentage of usable water 0

How often the beds are watered 0

Security 0

Time for training 0

MTBF 0

Dismantling time 0

Space system occupies 0

Leave the garden entrances open 0

Percent vegetable yield 0

Physical labor time 0

Gobal Warming Potential 0

Is THIS (in the ROW) 0: less important 1: equally important 2: more important than THIS (in the column)?

2. If you need less than all 50 Specifications (a likely case), delete the unneeded rows and columns (delete the whole row/column ( not just the cell contents), but NOT the statistics columns!)

Annual Maintaniece cost

2 2 2 2

1 2 2 1

0 1 2 1

0 0 1 1

1 1 1 1

2 2 1 2

0 0 0 0

0 2 0 0

0 1 0 0

0 0 1 0

0 0 1 0

2 2 2 1

2 2 2 2

0 0 0 0

Time it takes for the bed to be

wateredPercentage of usable water

How often the beds are watered

VALUES NEEDED ONLY IN LOWER LEFT SECTION

Security Time for training MTBF Dismantling time

2 2 2 2

0 2 2 2

0 2 0 1

1 2 2 2

0 2 2 2

1 2 2 2

0 1 0 2

0 2 1 1

0 0 1 1

0 1 0 0

0 0 0 0

1 2 2 2

1 2 2 2

0 1 0 0

VALUES NEEDED ONLY IN LOWER LEFT SECTION

Physical labor time

2 2 2 2

2 2 0 0

2 2 0 0

1 1 0 0

2 2 1 0

2 2 1 1

1 2 0 0

2 2 0 0

2 2 0 0

1 1 0 0

1 1 0 0

2 2 1 1

2 2 1 1

1 1 0 0

Space system occupies

Leave the garden entrances open

Percent vegetable yield

Raw Totals Raw Pcts.

2 26 14.3% 5.0

2 17 9.3% 3.4

2 12 6.6% 2.5

2 12 6.6% 2.5

2 16 8.8% 3.2

2 21 11.5% 4.1

1 6 3.3% 1.4

2 11 6.0% 2.3

2 8 4.4% 1.7

1 4 2.2% 1.0

1 3 1.6% 0.8

2 21 11.5% 4.1

2 22 12.1% 4.3

1 3 1.6% 0.8

MAX 14.3%MIN 2.2%

Gobal Warming Potential

Normalized Totals

CONCEPT RATINGS

Instructions1. Enter Concept titles in row 112. Delete unneeded rows (metrics) and columns (concepts)

ID: Concept 1

Title:

Con

cep

t R

ati

ng

s

Cost 3.5Time it takes for the bed to be watered 1

Annual Maintaniece cost 5Percentage of usable water 5

How often the beds are watered 4Security 5

Time for training 5MTBF 5

Dismantling time 5Space system occupies 5

Leave the garden entrances open 5Percent vegetable yield 4

Physical labor time 1Gobal Warming Potential 3

3. Choose a rating for each metric for each concept on a scale of 1 - 5: (5 is BEST, 1 is WORST

Watering Can + Water

Catchment

2. Delete unneeded rows (metrics) and columns (concepts)

Concept 2 Concept 3 Concept 4 Concept 5 Concept 6 Concept 7

Rain Sprinkler

2 2 4 5 2.5 15 5 2 1 2 53 2 3 5 4 35 5 5 1 2 54 4 5 1 5 45 4 5 5 5 52 2 1 5 1 24 3 2 5 4 43 4 3 5 3.5 44 4 5 5 4 45 5 4 5 5 55 5 4 1 3 5

3.5 4 2 5 3.5 42.5 2.5 4 5 2.5 2.5

3. Choose a rating for each metric for each concept on a scale of 1 - 5: (5 is BEST, 1 is WORST with respect to all the available concepts)

Above Ground Drip-unattached

Underground Drip

Current System

Above ground drip attached

Concept 8

34

3.5545

3.54.54455

2.752.5

with respect to all the available concepts)

Hose + Water Catchment

FINAL SUMMARY

Instructions

2. Analyze the results for signficant differences, surprising results, te max total ("winner"), etc.

Weighted Ratings (original ratings from sheet 2)ID: Concept 1 Concept 2 Concept 3

Weight from \Sheet 1 normalized to a 1 - 5 scale --> Weight

Con

cep

t R

ati

ng

s

Cost 5.0 17.5 10.0 10.0me it takes for the bed to be watered 3.4 3.4 16.8 16.8

Annual Maintaniece cost 2.5 12.3 7.4 4.9Percentage of usable water 2.5 12.3 12.3 12.3

How often the beds are watered 3.2 12.7 12.7 12.7Security 4.1 20.5 20.5 16.4

Time for training 1.4 6.8 2.7 2.7MTBF 2.3 11.4 9.1 6.8

Dismantling time 1.7 8.6 5.2 6.9Space system occupies 1.0 5.0 4.0 4.0

Leave the garden entrances open 0.8 4.1 4.1 4.1Percent vegetable yield 4.1 16.4 20.5 20.5

Physical labor time 4.3 4.3 15.0 17.1Gobal Warming Potential 0.8 2.5 2.0 2.0

TOTAL 137.6 142.2 137.2

Concept Statistics

1. Delete unneeded rows (metrics) and columns (concepts), but NOT the statistics sections

Watering Can + Water

Catchment

Above Ground Drip-unattached

Underground Drip

Max 146.8Min 124.2

Average 136.4Standard Deviation 7.3

2. Analyze the results for signficant differences, surprising results, te max total ("winner"), etc.

Weighted Ratings (original ratings from sheet 2)Concept 4 Concept 5 Concept 6 Concept 7 Concept 8 Metric Statistics

Rain Sprinkler

Max Min Average

20.0 25.0 12.5 5.0 15.0 25.0 5.0 14.46.7 3.4 6.7 16.8 13.5 16.8 3.4 10.57.4 12.3 9.8 7.4 8.6 12.3 4.9 8.7

12.3 2.5 4.9 12.3 12.3 12.3 2.5 10.115.9 3.2 15.9 12.7 12.7 15.9 3.2 12.320.5 20.5 20.5 20.5 20.5 20.5 16.4 19.91.4 6.8 1.4 2.7 4.8 6.8 1.4 3.74.5 11.4 9.1 9.1 10.2 11.4 4.5 8.95.2 8.6 6.0 6.9 6.9 8.6 5.2 6.85.0 5.0 4.0 4.0 4.0 5.0 4.0 4.43.3 4.1 4.1 4.1 4.1 4.1 3.3 4.0

16.4 4.1 12.3 20.5 20.5 20.5 4.1 16.48.5 21.4 15.0 17.1 11.8 21.4 4.3 13.83.3 4.1 2.0 2.0 2.0 4.1 2.0 2.5

130.3 132.2 124.2 141.0 146.8

but NOT the statistics sections

Current System

Above ground drip attached

Hose + Water Catchment

Metric Statistics

St. Dev

6.46.12.64.04.01.42.22.31.30.50.35.85.40.8

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