IB Design Technology Topic A3.1.3: Material Aesthetic Considerations Notes

Selecting a Material Is a Trade-Off, Not a Lookup

1. Choosing the most suitable material is complex because no single material wins on every measure at once.
2. A designer has to evaluate four groups of factors together: physical properties, chemical properties, mechanical properties and aesthetics.
3. The first three are defined in A3.1.4, A3.1.5 and A3.1.6, so this lesson adds the fourth and then puts all four to work.
4. There is no "best" material in the abstract, only the most appropriate one for a stated purpose, so changing the purpose can change the winner.

Aesthetics: The Fourth Factor in the Decision

1. Aesthetics is about how a design looks, feels and appeals to the user.
2. It shapes a product's identity, its usability and its emotional impact.
3. Commercially it drives user experience, marketability and brand differentiation.
4. Some aesthetic qualities come from the material itself, such as the grain of oak, while others are added later by a finish.

Colour: The Most Immediate Aesthetic Choice

1. Colour influences emotion, perception and brand identity, and it carries strong associations:
   1. Warm colours: reds, oranges and yellows read as energetic and warm.
   2. Cool colours: blues, greens and purples convey calmness and stability.
   3. Neutral colours: blacks, whites and greys give a versatile, modern backdrop.
2. Colour can be inherent, like the warm tone of natural wood, or added, like a dyed polymer.
3. Designers use it to set mood, reinforce a brand and control visibility, and a safety product may be coloured purely so it is seen.

Texture and Tactility: How the Product Feels in the Hand

1. Texture affects both the look and the feel of a material, so it is the one aesthetic quality the user physically touches:
   1. Smooth textures: read as modern and elegant, as on polished metal.