Article Link: https://springerplus.springeropen.com/articles/10.1186/s40064-016-2778-0#Sec2
1.  A description of the problem (and the field it is coming from).
2. A discussion of the problem’s impact using some statistical information (if it’s a kind of cancer, for example, how many people have it?).
3. A short history of the problem — how did it start, what caused it, and when did people figure out it was a problem?
4. A brief indication of why this problem matters — in other words, why should people care about it?