UX can be designed only indirectly.

UX is the overall impression that the user gets from the interaction with the system. 

The quality of UI has a great effect on the quality of user experience.

Twisted form of the original material

Oblique or slanting face of some material

The use of one material to imitate the appearance of another material 

An ancient way of designing something

Its goal is social interaction.

It imitates human characteristics.

Its main purpose is to make systems behave like humans.

An example is a notebook-style notes app.

To design a product in an ancient way so that it has some artistic value

To design a product in a way that it looks smooth and elegant

To make a product useful so that users are attracted to buy it

Goals, Operations, Methods, Systems

Goals, Operators, Methods, Selection rules

Goals, Objects, Methods, Strategies

Groups, Operators, Methods, Systems

Distributed Cognition

Cognitive Walkthrough

GOMS (Goals, Operators, Methods, and Selection Rules)

Behaviour

Movement

Wayfinding

Travel