B3: Present the chosen design and justify its selection

Command Terms

After exploring design ideas and possibilities, and gathering feedback from your peers, user, and teacher, you should have a good idea about what design you will move forward with.

In this section you need to Present your chosen design, and Justify why it is the best design to develop into a prototype.

Presenting the Design

You should present your design as a high quality drawing that communicates as much information as possible.

Product Design

This would include:

high quality drawings in color
multiple views of the design
annotations that describe function, form, and unique features

Digital Design

This would include

detailed flowchart showing the structure of the program
examples of artwork, sounds, and other elements that would be incorporated in the design
annotations or notes about the function, types of code, or other important elements of the code

Justifying the Design

In this part, you should Justify why the chosen design. You should make explicit reference to the Design Specification (B1) and highlight how the design meets these specifications.

Your justification can either be written as a separate paragraph or table, or presented in the annotations. Whatever strategy you choose, be sure to make explicit reference to the specifications.

Specifications (from B1)

The product will have a water compartment that releases water into the greenhouse because water is essential for plants to grow.
The product should be blue or green in some places because the user group on Mars see lots of red, so they need to ease eye tension.
The weight of the product will be less than 7 kilograms for the user to carry it easily.

Justification

The design has a water storage compartment that can hold 2 liters of water. A pump and hose system will deliver water to the plants. The pump is controlled by the Arduino controller. A moisture sensor connected to the Arduino will determine when water needs to be added.
The sides of the product are colored blue and green.
The produce is estimated to weigh less than 5 Kg when empty. With soil and plants, though, it may way up to 10Kg. This will be confirmed through testing, and changes to the design suggested if necessary.