KS3 · Computer Science
Designing clear digital messages
Most signs get a glance and nothing more. So what makes one message land in that glance while another vanishes? Judge some design choices yourself.
Computer Science · Designing for the viewer
Helps, or gets in the way?
For a viewer who only glances, does this design choice help the message land, or get in the way?
Still to sort
Helps the message land (0)
The viewer gets the message quickly and the sign is easy to read.
Where the line is: It belongs here when it makes the message clearer or the sign easier to spot.
Gets in the way (0)
The viewer is distracted, or the sign is hard to read or spot.
Where the line is: It belongs here when it distracts the viewer or makes the message harder to take in.
Imagine a viewer who only has time for a glance. Sort each design choice, then read why it belongs there.
Colour and meaning
Reason it through
Why can a green danger sign be dangerous?
First link · your turn
Before the viewer reads a single word, what do they already link with the colours green and red?
Predict, then check
Think about the person reading it, not the person making it.
A font is the design style of the characters in a piece of text. You can change the font colour and the font style. Which formatting would make a line of text easiest to read under typical use?
WHAT YOU'VE LEARNED
A quick recap of today's lesson.
What you need to know
- A poster is a visual product, usually on a wall. Good design gets its message across clearly and makes it easy to read.
- Signs and posters must land their message at a glance, without the viewer needing to study the detail.
- Too much text, or too many images and details, distracts the viewer and makes a poster hard to read.
Have a goJay says: 'Maya's poster is brilliant. It's got more words and more photos on it than any other in the corridor!' Will a passer-by get its message at a glance?
Probably not. A viewer who only glances can't take all that in, so the message gets lost.
Too much text and too many images distract the viewer. More on the page doesn't make the message land any faster.
- Poor graphical design can make signs and posters hard to read, and can even be dangerous.
- Poor design looks like: too much text, text hard to read against its background, no border, or an unsuitable colour.
Have a goA door sign has thin pale-yellow lettering on a white board and no border. Give two reasons it's poor design.
The text is hard to read against its background, and with no border the sign is hard to spot.
Those are two of the named examples of poor design; each one stops the message reaching a viewer who only glances.
- Good sign design uses minimal, simple text, a simple font, bright contrasting colours, a simple shape and a border.
- A font is the design style of the characters. Colour and style can be changed, so keep text easy to read: contrast with the background, and a big enough size.
Have a goSomeone can't read your sign from across the room, though your text colour contrasts well. Which formatting choice do you change?
The font size. Make it big enough to read.
Good contrast isn't enough on its own. Formatting should make text easy to read under typical use, and that includes a big enough size.
- There are no set rules: a poster needn't have every feature, or both text and images, if the message is clear.
- Annotation is a note or comment added to text, images or diagrams to explain, for example, a design feature.
- To evaluate a design, say whether it communicates clearly, give reasons, and explain how it could be improved.
The big picture
A poster or sign works when its message lands at a glance. Too much text or detail, text that is hard to read against its background, no border and an unsuitable colour all get in the way. A simple font, bright contrasting colours, a simple shape and a border help. There are no set rules, so every feature has to earn its place by helping the message.
Key points
Worked example
Problem
A school gate has this sign: 'Visitors are kindly requested to report to the main reception office before proceeding any further into the school grounds, where they will be signed in.' It is in small pale-grey writing on a white board, with no border. Evaluate it.
⚠ Watch out
Thinking more is better: packing a poster with every fact, picture and feature. Too much detail distracts the viewer and makes it harder to read, and there are no set rules saying a poster needs every feature.
Memory hook
The glance test: if a viewer has to stop and study it, something in the design is getting in the way.
Check yourself
Look at any sign or poster near you right now. Does its message land at a glance? Name one choice that helps, one that gets in the way, and how you would improve it.
Flashcards
(12)What is a poster?
What does 'at a glance' mean for a sign?
Why should a poster avoid too much text and too many images?
Give four examples of poor sign design.
Why can poor graphical design be dangerous?
Which colours do we associate with safety and with danger?
What does good sign design use?
What is a font?
How should text be formatted?
Does a poster need every design feature?
What is annotation?
How do you evaluate a design?
Tap any card to flip it, or use Study as deck to go through them one at a time. In the full lesson these run as a spaced-repetition deck — you rate each card Hard, Good or Easy and the tricky ones keep coming back until they stick.
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