a way of achieving an aim or solving a problem by trying a number of different methods and learning from the mistakes that you make:
trial and error
the process of formally testing a product to discover how effective or suitable it is
trialling
a long piece of writing on a particular subject, especially one that is done in order to receive a degree at college or university
dissertation
a long piece of writing on a particular subject, especially one that is done for a higher college or university degree
thesis
a meeting of a group of people with a teacher or expert for training, discussion, or study on a particular subject
seminar
