IB Design Technology Topic A3.1.1 Classification by Properties Revision Notes (SL/HL)

IB Design Technology Topic A3.1.1 Classification by Properties Revision Notes (SL/HL) | RevisionDojo

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Classification: Grouping Materials by What They Share

Classification means grouping materials by the characteristics they share, so that a material you have never used before still arrives with a set of expectations attached.
In design, materials are sorted into three families of properties: physical, chemical and mechanical.
The same material lands in a different group depending on which property you sort by, so classification is a set of lenses rather than a single filing cabinet.

Why Designers Classify: Predict, Select, Communicate

Predicting Behaviour
1. Knowing a material's class tells you how it will behave under heat, load or attack before you have built anything.
Faster Selection
1. Grouping lets you compare like with like, so you can rule out whole families at once instead of testing materials one by one.
A Common Language
1. A property means the same thing to a designer, a supplier and a manufacturer, so a specification can be written once and understood everywhere.

Analogy

Classification works like the nutrition label on food packaging.
You do not need to eat the product to know roughly what it will do to you.
The label does not decide your dinner for you, it just narrows the choice quickly.

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Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

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Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Classification: Grouping Materials by What They Share

Classification means grouping materials by the characteristics they share, so that a material you have never used before still arrives with a set of expectations attached.
In design, materials are sorted into three families of properties: physical, chemical and mechanical.
The same material lands in a different group depending on which property you sort by, so classification is a set of lenses rather than a single filing cabinet.

Why Designers Classify: Predict, Select, Communicate

Predicting Behaviour
1. Knowing a material's class tells you how it will behave under heat, load or attack before you have built anything.
Faster Selection
1. Grouping lets you compare like with like, so you can rule out whole families at once instead of testing materials one by one.
A Common Language
1. A property means the same thing to a designer, a supplier and a manufacturer, so a specification can be written once and understood everywhere.

Analogy

Classification works like the nutrition label on food packaging.
You do not need to eat the product to know roughly what it will do to you.
The label does not decide your dinner for you, it just narrows the choice quickly.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Unlock the rest of this chapter with a free account

End of article

A. Design in theory8 subtopics

B. Design in practice8 subtopics

C. Design in context8 subtopics

IB Design Technology Topic A3.1.1: Classification by Properties Notes

A. Design in theory8 subtopics

B. Design in practice8 subtopics

C. Design in context8 subtopics

Classification: Grouping Materials by What They Share

Why Designers Classify: Predict, Select, Communicate

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Classification: Grouping Materials by What They Share

Why Designers Classify: Predict, Select, Communicate

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account