The purpose of a systematic review is to provide as objective and accurate a response as possible to a research question, based onallavailable research on the subject. A systematic review is apppropriate when some research studies point in one direction and others point in a different direction.
A systematic review usually contains an aggregate of the results of the studies. On the basis of this aggregate, we report in our conclusions on what the research as a whole says on the subject.
The purpose of a systematic map is to provide a comprehensive picture of the literature within a limited area of research, based on what distinguishes the studies. A systematic map is apppropriate when the question of interest is too broad for us to be able to weigh the results of the studies together, that is, when the subjects of the studies differ too much.
The conclusions of a systematic map relate to the characteristics of the studies themselves – in other words,whathas been studied,wherethe studies were conducted, whether any research focus is particularly common or whether there are research gaps, etc. In this way, we can identify areas where it is possible to conduct systematic reviews and areas that would require more research.
The purpose of a summary of the scientific literature is to provide anoverviewof the literature within a limited area of research, based on what distinguishes the studies. Such a summary is appropriate when time and resources are lacking to do a systematic map. A search through the literature is not done with the goal of finding all the studies.
The conclusions, as in systematic reviews, relate mainly to the characteristics of the studies themselves, in other words what has been studied, whether any research focus is particularly common or whether there are research gaps, etc. The conclusions are more preliminary, because not all research studies on the subject are included in a summary of scientific literature.