Doctor of Business Administration (DBA) refers to a person who graduated from a master's degree, passed the course examination and thesis defense of the business administration major, and was awarded the doctor's degree in business administration. It is a comprehensive and systematic management course specially designed for senior managers, chairmen, CEOs and other senior executives in the business community, which embodies the highest academic level of business administration.

In addition, there are two academic levels, namely, senior lecturer and lecturer. In fact, many university teachers in Britain, Australia and New Zealand would have reached the top by senior lecturers without outstanding special research published.

This position is similar to that of an associate professor in the United States and Canada. The requirements for lecturers in Britain, Australia and New Zealand have also been changed to require a doctorate in the past decade, so this position is equivalent to an assistant professor in the United States.

In America, a professor is equivalent to a lecture professor. Under the systems of Britain, Australia and New Zealand, there is usually only one full professor in each field. For example, a professor of biochemistry is a professor of biochemistry. This is very different from the systems in the United States and Canada and is often misunderstood. Associate professor under the new system of Britain and Australia.

Most of them are very old, because associate professors are almost the highest academic positions in the system, and only a few people can become full professors. In addition, there is a position called Reader in Britain, Australia and New Zealand, which is equivalent to an associate professor of research in Britain, Australia and New Zealand or a full researcher in Taiwan Province Province, just doing research.