An MPhil is also a research degree which requires the submission of a dissertation. An MPhil thesis is expected to display a good general knowledge of the field of study, a comprehensive knowledge of some part or aspect of the field of study and a recognisable original contribution to knowledge or understanding. An MPhil degree does not usually involve an oral examination. A full-time MPhil degree is normally completed in two years.The essence of a PhD is research, in which knowledge is extended by exploration, investigation, and contemplation. In scientific and engineering disciplines, research often implies experimentation, but research is more than mere experiments: it means interpretation and deep understanding. To be awarded a PhD, you must find new abstractions, approaches, algorithms, principles, or mechanisms. Your work must also be of a high quality equivalent to peers in your field.To complete a PhD, you will present the results of your research in a formal document called a thesis or dissertation which should contain a substantial original contribution to knowledge or understanding. You will have to defend your work in an oral examination, known as a viva voce. A full-time PhD is typically completed in three years.