What are you understand about design?

To me ,that is mean we produce something based on what we imagine to do. (Ag,2011)

Design is a compilation of materials for create a result or consequence. Design

play an important role in all fine arts and the creation of industrial production.

This article discusses the design concept the basis for the visual arts.

(encyclopedias)

What is aesthetic?

Aesthetics is the study of theory applied to art in the sense that area and the base.

(encyclopedias)

From the design-centric perspective, aesthetics is one of the dimensions of design.

Aesthetics is a set of principles concerned with the nature and appreciation of beauty (Oxford Dictionary).

Aesthetics is a branch of philosophy dealing with the nature of beauty, art, and taste, and with the creation and appreciation of beauty. It is more scientifically defined as the study of sensory or sensori-emotional values, sometimes called judgments of sentiment and taste. More broadly, scholars in the field define aesthetics as "critical reflection on art, culture and nature.

(wikipedia)

Aesthetic is one of element in art.How beautiful the art is depends on its aesthetic values.

To me,without aaesthetic in each art that is mean there is no function and non-quality of the work.(Ag,2011)

What is aesthetic study?

The study of aesthetics is necessary to assess the quality of a work of beauty and art.

in fact the study of aesthetic valueshas various meanings, and no one perfect system to explain everything about what is aesthetic.

Thus, only those who have great interest in the art would be able to elaborate on the term aesthetics.