W6A. Discussion Structure and Content

1. Summary

1.1 The Role of the Discussion Section

The Discussion is the interpretive heart of your systematic literature review. While the Results section reports what the literature found, the Discussion explains what those findings mean. It moves from the specific (your findings) to the broad (their implications for the field), answering the reader’s implicit question: “So what?”

A Discussion section that merely repeats the Results without adding interpretation fails this purpose. The Discussion must offer something new: synthesis, evaluation, and forward-looking analysis.

1.2 The Four Components of a Discussion

A complete Discussion section in a systematic literature review addresses four distinct areas:

1.2.1 General Interpretation of Results in Context

This is the largest and most central part of the Discussion. Here you:

• Summarize your key findings: Briefly restate the most important outcomes from your Results section. Do not copy from Results verbatim—rephrase and synthesize.
• Discuss the meaning of your findings: What patterns emerged? What do they reveal about the field? Why are these findings significant?
• Compare and contrast your results with similar existing reviews: Return to the SLRs you identified during your initial literature search (your TSA 1 table). How do your findings align with, extend, or contradict those reviews? If no comparable systematic reviews exist on your topic, state this explicitly.

This comparative analysis demonstrates that you are situating your work within the broader scholarly conversation, not producing it in isolation.

1.2.2 Limitations of the Evidence Reviewed

This component directly follows from your Risk of Bias assessment in the Results section:

• Briefly revisit the biases identified in your included sources: You have already documented these in the ROB table. Now discuss their cumulative significance for the reliability of your conclusions.
• Suggest improvements: For each identified bias or limitation in the sources, propose how future primary research could address it (e.g., “Future studies should use larger and more diverse samples to improve generalizability”).

Acknowledging limitations is not a weakness in academic writing—it is a mark of intellectual honesty and rigor. Readers trust authors more when they acknowledge the boundaries of their evidence.

1.2.3 Limitations of the Review Process

Beyond the limitations of the included sources, you must also acknowledge the limitations of your own methodology:

• Were you restricted to a single database? (This may mean some relevant papers were missed.)
• Did your search string use broad terms that might have returned many irrelevant papers, or narrow terms that might have missed some relevant ones?
• Was the review restricted to a specific language (English only) or time period?
• Is the review subject to publication bias (the tendency for journals to publish positive findings more than null or negative results)?

These are honest, common limitations of any systematic review. Naming them demonstrates methodological self-awareness.

1.2.4 Implications for Practice, Policy, and Future Research

The Discussion closes by pointing beyond the review itself:

• Practical implications: How can practitioners—professionals, engineers, clinicians, policy-makers—use the findings? What decisions do your results inform?
• Future research directions: What questions remain open? What aspects of the topic were not adequately covered by the existing literature and should be studied in future primary research? What methodological improvements could strengthen future work?

This forward-looking component distinguishes a Discussion from a mere summary. It positions your review as a contribution to an ongoing scholarly conversation, not a final word.

1.3 Tenses in the Discussion

The Discussion uses a wider range of tenses than any other section, because it performs multiple rhetorical functions simultaneously:

Function	Tense	Example
Stating general truths or interpreting findings	Present Simple	“These results suggest that trust is the primary driver of adoption.”
Summarizing what this review found	Past Simple	“Our review found that most studies focused on Western populations.”
Comparing with other researchers’ findings	Past Simple	“Consistent with Smith [3], our results revealed that…”
Proposing implications and future directions	Present Simple / Modal verbs	“Future research should examine… / may benefit from…”

Modal verbs of possibility and probability are especially important in the Discussion, where you are interpreting and speculating rather than reporting established facts:

• may, might, could (for possibility)
• should, ought to (for recommendation)
• would, is likely to (for probability)

Hedging (introduced in earlier sessions) is particularly critical in the Discussion. When you interpret findings and draw broader conclusions, you are moving beyond what the data strictly proves—and hedging language acknowledges this appropriately.