Information Sources and Retrieval Study Guide
Overview of Information Sources and Retrieval
Course Assignment: Research Skills (RESK401 / PRJA301 / ADICT1 / BINCT1).
Target Audience: Students of Advanced Diploma in ICT and B.ICT.
Compiler: Dr. A. Singh.
Core Content Areas:
Understanding the state of the art.
Sources of information.
Evaluation of sources.
Accessing information.
Understanding the State of the Art
Establishing a comprehensive understanding of the "state of the art" is essential for any researcher to ensure their work is relevant and novel.
Consequences of a Poor Understanding:
Redundancy: The intended study may have been performed numerous times previously, resulting in a mass of existing publications.
Reporting Flaws: Recent developments might be overlooked, leading to outdated or flawed reporting.
Redundant Problem Solving: Existing studies may have already collectively solved the research problem.
Irrelevance: Utilizing sources that are not recent and therefore no longer applicable.
Reinventing the Wheel: Failing to use current publications as a foundation or "springboard" for new research.
Types of Literature Reviews (Goddard and Melville, 2001):
Preliminary Literature Review:
Objective: To allow the researcher to "get a feel" for the field of enquiry.
Context: Usually conducted as part of a Master's or PhD application, often in the form of a concept note.
Sources: Reading may involve more accessible or introductory sources.
Purpose: To identified key researchers/contributors, determine recent developments, and establish requirements for the full review.
Full Literature Review:
Objective: To provide a critical analysis of the state-of-the-art to motivate the need for new research.
Timing: The bulk of this work must be completed before empirical work begins.
Addressing Information Overload: Due to the high volume of publications in any given field, researchers must selectively identify key authors and "seminal works" (foundational or highly influential studies).
Sources of Information
Researchers have access to various formats of information, which include but are not limited to:
Scholarly and Technical Sources:
Journal articles.
Conference proceedings.
Dissertations and theses.
Technical reports.
Conference posters.
General and Reference Sources:
Textbooks.
Magazine articles.
Newspaper articles.
Websites.
Reference tools (e.g., online dictionaries and encyclopedias).
Direct Communication: Personal communication with experts.
Evaluation of Sources
It is critical to distinguish between sources based on their reliability, depth, and intended audience.
Reliability through Peer Review:
The most reliable sources are journal articles, conference proceedings, and theses/dissertations because they undergo peer review.
Definition of Peer Review (Moritz, Vassar College Library, 2019): "the editor of the journal will identify a few other scholars (peers) who have expertise on the subject and send a copy of the article to those individuals. The peers will review the article for quality and rigor and give the editor their comments and recommendations. Depending on what the peers say, the editor may reject the article (if the peers found it to be substandard), or ask the author to revise and improve the article based on recommendations the peers provided."
Conference and Thesis Review: Conference proceedings follow a similar peer review. Master's and PhD theses are examined by at least two field experts appointed by a University.
Comparison: Popular vs. Scholarly Sources:
Popular Sources:
Audience: Intended for the general public (students, school learners).
Style: Informal, easy to understand.
Authorship: Affiliations and credentials often unknown; lack of proven expertise.
Citations: Little to no citation of primary sources.
Review: No peer review process.
Perspective: Biases may be explicitly or implicitly apparent.
Scholarly Sources:
Authorship: Includes clear academic affiliations and credentials.
Format: Conforms to academic standards (Abstract, Literature Review, Methodology, Conclusion).
Style: Neutral, factual, and uses field-specific vocabulary (nomenclature).
Transparency: Clear use of in-text citations and comprehensive reference lists.
Goal: Intended to advance the field by contributing new knowledge.
Validation: Peer-reviewed.
Publishers: Published by trustworthy entities such as IEEE, ACM, or Springer.
Comparison: Primary vs. Secondary Sources:
Primary Sources: These directly proclaim new findings or knowledge shared with the research community to advance the field (discourse). Examples include original journal publications and dissertations/theses.
Secondary Sources: These provide a summary, simplification, or analysis of multiple primary sources. A common example is a Literature Review, which synthesizes existing literature to present a view of the current field.
Categorization: Accredited vs. Predatory Publications:
Accredited Publications: Recognized by international quality standards (e.g., Web of Science, Scopus, Elsevier). In South Africa, the DHET (Department of Higher Education and Training) provides an annually updated list. These sources are trustworthy, maintain high standards, and are used for university/researcher awards.
Predatory Publications: These are primarily "money making schemes" with no academic reputation and poor quality standards. They use devious methods to trap authors. Researchers are advised to check the Cabells listing (available via the DUT library website) to identify predatory journals.
Accessing Information
A researcher should follow a methodical approach to information retrieval:
The Three-Step Retrieval Process:
Find sources (prioritizing journals, texts, and conference proceedings).
Determine the quality of the content.
Utilize tools to organize sources according to sub-sections of the study.
Gauging Relevancy: A source's relevance can be determined by examining:
Title.
Abstract.
Number of citations (how often others have referenced it).
Impact Factor of the journal.
Institution Resources: The Durban University of Technology (DUT) library provides subscriptions to online journals, theses, and texts. Students should attend the scheduled library demonstration during lectures.
Software Tools for Citation Management
Managing references manually is high-risk, particularly for long documents like theses, as errors can lead to accusations of plagiarism.
Purpose: Citation management tools create local libraries of sources that can be referenced, sorted, shared, and organized. They typically integrate (bolt-on) to word processing software.
Popular Tools: RefWorks, EndNote, Zotero, Mendeley, and F1000 Workspace.
Key Functions of Citation Tools:
Organizing references efficiently.
Directly importing citations from databases or search engines.
Searching external databases for articles within the tool.
Generating bibliographies and reference lists automatically.
Changing referencing systems instantly (e.g., from IEEE to Harvard style).
File management (e.g., attaching and storing PDF articles).
Social networking with peers to share articles and reference libraries.
Tutorials and Discussion Points
Differentiating Sources: Contrast the characteristics of scholarly sources (formal, peer-reviewed, academic credentials) with popular sources (informal, general audience, no review).
Predatory Publications: Define predatory journals as profit-driven entities with poor quality. (Task: Identify three using Cabells on the DUT website).
Accredited Journals: List three accredited IT journals using the DHET list.
Peer Review Importance: Provide two motivations for the process (e.g., ensuring quality/rigor and validating findings).
Describing Peer Review: Detail the process involving editor selection of experts, expert review for rigor, and the final decision (reject, revise, or accept).
Citation Management Benefits: Identify three reasons for post-graduate use (e.g., preventing plagiarism, speed in generating bibliographies, and organizing large volumes of research).
PhD Thesis as a Primary source: Explain why a PhD thesis is a primary source (it contributes original, new knowledge validated by experts to the field of enquiry).