A synthesis reaction or direct combination reaction is one of the most common types of chemical reactions. In a synthesis reaction two or more chemical species combine to form a more complex product.
A design review is a milestone within a product development process whereby a design is evaluated against its requirements in order to verify the outcomes of previous activities and identify issues before committing to-and if need to be re-prioritise-further work.
Study Design. 1  Interventional Study Design * (For interventional studies only) Definition: A description of the manner in which the clinical trial will be conducted, including the following information: 2  Observational Study Design (For observational studies only) Observational Study Model *.