Once you develop a rough framework, slot the findings from the material so far reviewed into these themes, using a separate sheet of paper for each theme of the framework so far developed. As you read further, go on slotting the information where it logically belongs under the themes so far developed. Keep in mind that you may need to add more themes as you go along. While going through the literature you should carefully and critically examine it with respect to the following aspects:
Note whether the knowledge relevant to your theoretical framework has been confirmed beyond doubt.
Note the theories put forward, the criticisms of these and their basis, the methodologies adopted (study design, sample size and its characteristics, measurement procedures, etc.) and the criticisms of them.
Examine to what extent the findings can be generalised to other situations.
Notice where there are significant differences of opinion among researchers and give your opinion about the validity of these differences.
Ascertain the areas in which little or nothing is known – the gaps that exist in the body of knowledge.