Decision Matrix – Floating Dwelling   Criteria  

Ideas

 Complexity

Development Time

Materials

Longevity

Buoyant Effectiveness

 Cost

Totals

 Air Mattress  3  5  4  2  5  5  24

 2-Liter Bottles  2  4 4   5 5  5  25

 Plastic Bags 1  3  3  3  4  5  19

1. Air mattress

2. 2-litter bottles

3. Plastic Bags

Scale: The greater, the betterComplexity: 1 most complex, 5 least complex

A more complex design will be inefficient to build, whereas a less complicated design is able to be build in must less time.Development Time: 1 most amount of time, 5 least time

A design that needs more time to organize the details will not be worth the time put into it while a simple design will be easy to follow.Materials: 1 most amount of materials, 5 least amount of materials

Being conservative, even in a recyclable project is very important. The less waste the better. As the number of materials and the quantity of materials becomes less, the efficiency of the design is increased, making the eco-project even more environmentally friendly.Longevity: 1 lasts for a short period of time, 5 lasts for a long period of time

Even the lifespan is important for a product. If the product will not last for more than a few months than it isn’t worth the small cost put into it on top of the materials cost. The product lifespan is to be maximized.Buoyant Effectiveness: 1 not very effective, 5 very effective

The goal of the eco-project: Floating Dwelling is to float a small residence, if the design is unable to float very much weight, then the design is not a good one.Cost: 1 not very cost effective, 5 very cost effective

A net cost of the project, including outside materials, which is not ideal, shows how truly eco-friendly the project is.

1 2 3 4 5Complexity Most complex More complex Complex Less complex Least complexDevelopment time

Most timeA week

More time 5 days

Medium time3 days

Less timeA day

Least time2 hours

Materials Most amount of materials100 pieces

Medium amount of materials50 pieces

Decent amount of materials30 pieces

Less amount of materials25 pieces

Least amount of materials17 pieces

Longevity Lasts for the less amount of time- a month

Lasts for less amount of time – a year

Lasts for a medium amount of time- 5 years

Lasts for more amount of time- 10 years

Last for the most amount of time- 20 years

Buoyant Effectiveness

Least effective 50 Ibs.

Semi effective100 Ibs.

Effective 100 Ibs.

More effective 150 Ibs.

Very effective 250 Ibs.

Cost $300- $250 $200 $150 $120 $75 and under

By: John Tobias, Brian Jestice, Anthony Cairns, Diane Kohlin