W3B. Identifying LR Method, Reference Management, Reading Log

1. Summary

1.1 The Three Components of an LR Method

The Method section of a systematic literature review (SLR) is built from three core components. Understanding each of these components is necessary before you can either write your own Method section or evaluate someone else’s.

1.1.1 Search Strategy

The search strategy documents how you looked for sources. It must include:

• The databases you searched (e.g., ScienceDirect, IEEE Xplore)
• The complete search string(s), including all keywords, Boolean operators, and wildcards
• Any database-specific filters applied (e.g., date range, document type, language)

The goal is complete transparency: a reader following your documented strategy should be able to run the same search and retrieve the same (or comparable) set of results.

1.1.2 Data Preparation

Data preparation covers the steps taken to organize and clean the raw search results before screening:

• Removing duplicates (the same paper appearing in multiple databases)
• Applying initial filters (e.g., limiting to English-language papers, to peer-reviewed articles only, to a specific date range)

Data preparation reduces the pool of candidates from the total number of raw hits to a more manageable, cleaned set ready for detailed evaluation.

1.1.3 Screening

Screening is the process of applying your inclusion and exclusion criteria to the cleaned set of papers to determine which ones will actually be included in your review. Screening typically happens in two stages:

1. Title and abstract screening: Based on the title and abstract alone, decide whether a paper is potentially relevant.
2. Full-text screening: Read the full paper to make a final inclusion/exclusion decision.

The number of papers at each stage (initial hits → after deduplication → after title/abstract screening → final included papers) is typically recorded and reported, often in a flow diagram.

1.2 Writing Up the Method Section

When converting your documented search process into written prose, several structural decisions must be made:

• Subsections or not: Depending on the complexity of your method, you may present it as a single paragraph, divide it into two subsections (e.g., “Search Strategy” and “Screening”), or use multiple subsections for each stage.
• Ordering: Present steps in the chronological order in which they were performed. Minor variations in ordering are acceptable if they improve clarity.
• Optional visuals: A flow diagram showing the number of papers at each screening stage is not required but is strongly recommended in systematic reviews, as it makes the procedure immediately transparent.

1.3 Reference Managers

A reference manager is software that helps you collect, organize, annotate, and cite sources. When conducting a systematic literature review—which may involve reading and tracking dozens or hundreds of papers—a reference manager is not a luxury but a practical necessity.

Popular reference managers include:

• Mendeley: Free, widely used in academia, integrates with Word.
• Zotero: Free and open-source, strong browser integration for capturing sources directly from the web.
• Collabratec (built into IEEE Xplore): Convenient if your search is primarily in IEEE databases.
• EndNote: Commercial (paid), powerful for large projects, commonly used in medical and scientific fields.

Key functions a reference manager provides:

• Automatically importing citation metadata (title, authors, journal, DOI)
• Organizing papers into folders or collections
• Storing PDFs alongside citation data
• Generating bibliographies in any citation style (IEEE, APA, etc.)
• Detecting and removing duplicates

1.4 The Reading Log

A reading log is a structured record of the sources you have reviewed. Unlike a reference manager, which tracks bibliographic data, a reading log tracks your analytical engagement with each source: what you read, what it found, and how it relates to your research question.

A typical reading log entry for a systematic literature review includes:

• Full citation information (authors, title, journal, year, DOI)
• The study’s research question or goal
• The methodology used in the study
• Key findings relevant to your RQ
• Any noted limitations or biases
• Your assessment of relevance and quality

The reading log serves two purposes: it keeps you organized during the reading phase, and it provides the raw material you will draw on when writing your Results section. Good reading log entries make writing substantially easier, because you have already captured the most important information in your own words.