Incorporating Key Elements Into A Cohesive Design

Question 1

Cohesion definition

Answer 1

The creation or feeling of one-ness where individual elements of the design are drawn together to make a whole. 
These elements include
Hard landscaping
Soft landscaping
Material selection
Other features of the design.

Question 2

Achieving unity

Answer 2

Choice will be influenced by the style and materials of existing structures. Matching these in terms of type and colour will aid unity