| A | B |
| structure | an object made of more than one part |
| design | the way the parts of a strucutre are put together |
| function | the purpose of a structure |
| specifications | the rules for building a structure |
| manufactured structure | object made by man |
| natuaral structure | object that was not made by man |
| alternatives | the choices of materials or designs for a structure |
| asthetics | how the strucutre looks to a person...the colour, design |