Dependency on the job
Date:
(10) The last - but by no means the least - requirement is that the symbol system must be interfaced with human beings. There is not much point in a having a computer without a screen, or a bank without clients, or a Business Plan without someone to review it. We must always - when manipulating symbol systems - bear in mind the "end user" and be "user friendly" to him. There is no such thing as a bank, a firm, or even a country. At the end of the line, there are humans, like me and you.
To manipulate them into providing credits, we must motivate them into doing so. We must appeal to their emotions and senses: our symbol system (=presentation, Business Plan) must be aesthetic, powerful, convincing, appealing, resonating, fascinating, interesting. All these are irrational (or, at least, non-cognitive) reactions.