its a very poor village in Nepal that need Rainwater harvesting systems
using it for cooking , its rain a lot in Nepal so we need to use this in order to build something that cheap and easy to maintain.
the requirement of this report are
Trade-off Analysis
o Separate analysis of each part of problem to find best option for that part o Discuss criteria chosen and weightings given
o Trade-off Excel sheets
if more than one sheet then better in an Appendix
but must be referred to in main text
o Explicitly state best option for each part, with justification
o Maybe the best options may not work well together so may have to come up with
optimal combination
discuss the reasoning for this.
o Note: Preference to be given to renewable and locally available resources
Relating chosen concept design to requirements
o Discuss/show how chosen concept design meets requirements that were defined
earlier in report
Draft detailed design
o This is still draft, so you are not expected to have all the details worked out, but it
should still be a viable (and comprehensible) design. Put in as much as you can, so you
can get feedback.
o Content depends on problem being addressed
o Schematic diagram showing various components and an explanation of how it all
works
o Detailed plans (as far as possible)
dimensions, models of equipment chosen, etc
o Should have explanation/justification of choices
o Economic, social/cultural, and environmental factors to be considered (sustainability) o Safety features incorporated
TradeOff Analysis Template

Created by: Dr. Ganesh Arulampalam

Weighting        Value Properties            Option 1            Option 2            Option 3

Option 4            Option 5
Criteria    Value     (%)    Lowest Ranked value    Highest Ranked Value    Range    Raw Value    Scaled    Weighted    Raw Value    Scaled    Weighted

Raw Value    Scaled    Weighted    Raw Value    Scaled    Weighted    Raw Value    Scaled    Weighted
Criterion 1    100    100.0%            0        -0.0     -0.0         -0.0     -0.0         -0.0     -0.0         -0.0     -0.0         -0.0

-0.0
Criterion 2        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 3        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 4        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 5        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 6        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 7        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 8        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 9        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0
Criterion 10        0.0%            0        -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0     0.0         -0.0

0.0

Total  Weighting    100            Weighted Total                -0.0             -0.0             -0.0             -0.0

-0.0

Ranking                1            1            1            1            1

Legend:                                        Information :

Field is editable                                        Scaled value = (Raw_value – Lowest_ranked_value) *100 / Range

Field is editable, but value should not be entered yet (needs some other information)

Value should be entered                                        Weighted value = Scaled value * Weighting / Total_Weighting

Wrong value entered, error

Field is Non-editable, calculated value

Instructions:

1    Enter Option names

2    Enter Criterion name

3    Enter weighting for Criterion

4    Enter Least Ranked value and Highest Ranked value

Note: If higher value is better put lowest value in column D, and highest value in column E

Note: If lower value is better put highest value in column D, and lowest value in column E

5    Put in the ‘Raw Values’ for the criterion for the for each of the Options used

6    Repeat from Step 2 for next Criterion

7    System automatically calculates Weighted Total and Ranking

8    Adjust Weighting or other values as required