In 1950, Max Bill became involved in developing the graphic design program at the Institute of Design in Ulm, Germany, which attempted to address the design problems of the era. The curriculum included the general philosophical theory of signs and symbols, also known as what?

semiotics

Explanation:

Semiotics is a study on how information is formed and how this information is passed on to people. Its source rest on the academic research of the way signs and symbols (visual and grammatical) produces information.

It is a means of viewing the world, and of comprehending on the prospect and culture of a certain region possess a huge impact one way or the other.

Take for example, the separate colours of a traffic light, we in a way know what next to do on seeing them as it is a sign created by cultural convention dating back to a long period of time, how we were taught as children, and needs a means of unconscious cultural understanding to comprehend its information.

Looking and having a clearer interpretation (or understanding) this sign promotes in a good navigation of the landscape of ones streets and society.

Another example is a well comprehension of signs like colours of flags, the design of cars, the emojis e.t.c.

Signs can be aural or sonic in nature apart from being visual, e.g. the sound of a police siren and ambulance siren mostly heard before the vehicle is sighted.

Signs are interpreted in times of its context and the surrounding situations around it.

Hope this helps!

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they are often in theme and variations

variety in color and variety in texture