The document provides a decision matrix to evaluate three designs for a floating dwelling based on complexity, development time, materials used, longevity, buoyancy effectiveness, and cost. The designs considered are an air mattress, 2-liter bottles, and plastic bags. Based on the criteria, the air mattress scores the highest overall with a total of 24, suggesting it is the best design option.
![Decision Matrix – Floating Dwelling<br /> <br /> Criteria Ideas ComplexityDevelopment TimeMaterialsLongevityBuoyant Effectiveness CostTotals Air Mattress 3 5 4 2 5 5 24 2-Liter Bottles 2 44 55 5 25 Plastic Bags 1 3 3 3 4 5 19<br />,[object Object],3. Plastic Bags2. 2-litter bottles <br />Scale: The greater, the better<br />Complexity: 1 most complex, 5 least complex<br />A more complex design will be inefficient to build, whereas a less complicated design is able to be build in must less time.<br />Development Time: 1 most amount of time, 5 least time<br />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.<br />Materials: 1 most amount of materials, 5 least amount of materials<br />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.<br />Longevity: 1 lasts for a short period of time, 5 lasts for a long period of time<br />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.<br />Buoyant Effectiveness: 1 not very effective, 5 very effective<br />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.<br />Cost: 1 not very cost effective, 5 very cost effective<br />A net cost of the project, including outside materials, which is not ideal, shows how truly eco-friendly the project is.<br />12345ComplexityMost complexMore complexComplexLess complexLeast complexDevelopment timeMost timeA weekMore time 5 daysMedium time3 daysLess timeA dayLeast time2 hoursMaterialsMost amount of materials100 piecesMedium amount of materials50 piecesDecent amount of materials30 piecesLess amount of materials25 piecesLeast amount of materials17 piecesLongevityLasts for the less amount of time- a monthLasts for less amount of time – a year Lasts for a medium amount of time- 5 yearsLasts for more amount of time- 10 years Last for the most amount of time- 20 yearsBuoyant EffectivenessLeast 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<br />By: John Tobias, Brian Jestice, Anthony Cairns, Diane Kohlin<br />](https://image.slidesharecdn.com/decisionmatrixkohlin-110228131616-phpapp01/85/Decision-matrix-kohlin-1-320.jpg)
