Preliminary Design
To start a project, or have a comprehensive understanding of a project topic. Before customer can start the project implementation, normally it is better to start a Preliminary design or you can also call it Basic Engineering design, which can help customer understand including the detailed process routine, product and byproduct, major equipment involved, workshop arrangement, land area required, and also the input, output capacity/quality, with major consumption figures.
The preliminary design is the predecessor of the final result, which is equivalent to a sketch of a picture. Generally, the designs before the final draft are collectively referred to as the preliminary design.