Interior Design is the same project as other projects in our life.
According to Dr. Robert K. Wysotsky
“In order to start talking about projects, we need to have a starting point. Too often people refer to their tasks as "projects". The project can be strictly defined. If the set of tasks or the performance of the work does not meet this definition, then we cannot talk about the project. (Dr. Robert K. Vysotsky p.47 "Effective Project Management: Traditional, Agile, Extreme" 2013).
According to Dr. Robert K. Wysocki,
"a project is a series of unique, complex and related tasks with a common goal, which must be completed within a given time frame, within a set budget, in accordance with the anticipated requirements"
(Dr. Robert K. Wysotsk, p.48 "Effective Project Management: Traditional, Agile, Extreme" 2013).