University of Cape Town Writing guide Literature reviews Department of Information Systems 1 LITERATURE REVIEW 1.1 WHY HAVE A LITERATURE REVIEW? It is important to any research to find out as much as possible about what is already known or has been discovered relevant to your study. For that matter, it is useful to find out what is not known. Having done this, you can attempt your study with more knowledge and understanding of the field. The word literature implies the papers, articles, books that others have written to research, study, conceptualise and understand the area related to your study. Reviewing or bringing together this work assists you in addressing your research problem with more insight. For example, you may discover studies similar to yours and their approach may suggest ideas, approaches, methods or sources of data. A literature review can also help you to put your research into perspective. In other words, it helps you to evaluate your research by comparing it to similar research. However, the most important outcome of the literature review is to clarify the aim or objectives of your research by leading to the development of hypotheses, propositions or research questions. Each element of the literature review will be discussed in more detail below but it is helpful to set out the key steps to writing a literature review: Step 1 – Clarify your subject or area of interest Step 2 – Gain a general overview of your subject Step 3 – Choose appropriate access tools, develop a search strategy for each tool, and conduct a search Step 4 – Examine the results of your search and select only the most relevant and credible sources Step 5 – Narrow and shape your subject into themes, concepts and theories Step 6 – Revise, refine, and repeat steps 1-5 as needed 1.2 THE KEY ASPECTS OF A LITERATURE REVIEW – THE MARK PLAN 1.2.1 DEPTH OF TREATMENT It is important in a literature review to identify and use a comprehensive range of relevant ideas, concepts and themes. The important word here is relevant. The researchers need to identify what is relevant to the topic on hand. They should constantly ask themselves? Why are we discussing this? What is its relevance? Some may think that there is a contradiction in the requirement “Dept of Treatment”. On the one hand good coverage is expected but on the other hand the material should be focused. There is no contradiction. Once the relevant or significant ideas, concepts, themes and theories are identified, the focus is on these but comprehensive coverage on each of these is required. In other words, the researchers need to identify the significant theories or research in the field and ensure that the relevant ones are covered in depth. (Note that coverage is awarded a mark of 15 in the mark plan and focus is awarded a mark of 5). 1.2.2 ANALYTICAL HANDING The review should not be literature driven but an analysis of current thinking on the chosen topic. Analytical handling focuses on showing how the current thinking forms a whole. A literature review is thus NOT simply a compilation of separate reports. The literature identifies themes, concepts and theories (theme – unifying idea, concept – idea expressed as a symbol or in words, theory -a well-substantiated explanation of a phenomenon). A literature review should thus be theme, concept or theory centric and not author centric. For example, – e.g. a theme such as user reactions, a type of technology, an SDLC phase is described giving the views and findings of author A, Author B, etc. and not a series of discussions of each author in turn – e.g. Author A says, Author B says. An easy way to conceptualise this is to use a table as follows – as you read an article link it to one or more concepts. ARTICLE Theme, concept, theory Theme, concept, theory Theme, concept, theory X Y Z Author A (2000) Author B (2001) Author C (2004) Author D (2005) 1 As you work, remember the following: When taking notes it is important that you use your own words and phrases to summarize and paraphrase what you read. (Remember to avoid plagiarism!) If you will be quoting, record that quote with quotation marks so you do not forget Record the sources as you work, it can be frustrating to lose a source and be unable to use the reference Organise your work with cards or on the computer, e.g. using headings When complete, synthesize the literature by discussing each theme, concept or theory in turn. Each of these should have an internal logic. For this reason, isolated ideas should be avoided. It is also important to avoid introducing personal ideas or opinions. The review is of the literature and not of the authors’ ideas. 1.2.3 REFERENCING It is important for a good literature review to draw on a full range of appropriate and recent sources. By appropriate is meant two things. The first is the sources should be those in which the leading researchers in the field tend to publish. One way to find these is to conduct a careful search in the sources available in the library, such as databases, for recent refereed papers in your field. Then examine their reference lists to see which journals and authors they frequently reference. Another way is to ask your mentor for guidance on who are leading authors in the field or on which papers you should seek out. The second meaning of appropriate is the nature of the source. Generally speaking, articles in refereed journals are considered the best source. These are followed by books and non-refereed articles in respected journals and white papers (one has to be careful with white papers, especially on the web). Finally, one can use the web or the popular press with discretion but be guided by your mentor. Also of importance is the date of publication. Unless you are referring to a well recognised theory, your publications should be as recent as possible. In a fast moving field such as IS, publications that are five or ten years old may be obsolete. Your citation should follow the referencing guide and every reference cited in the review should be listed in the bibliography in the appropriate manner. Your marker will check this. 1.2.4 STRUCTURE In the literature review prior research and knowledge relevant to the chosen topic is brought together in a structured way. The term ‘in a structured way’ is important as the review should not be a historical description study by study. In other words, it should not be a compilation of separate reports. The purpose should be to organise the key ideas, themes and theories of the literature in a clear and coherent way. If the review is to be read as a separate report, the introduction to the review should set out the purpose and scope of the research so that the review has a context. Once it is bound into a research report or dissertation, the purpose and scope will be discussed in the overall introduction to the report. A literature review can be enhanced by summarising the key ideas, themes or theories at the end of the review. Note that this is a summary and not a conclusion or conclusions. The idea is to summarise the state of the theory in the field and answer questions such as whether there are any gaps or contradictions. More importantly, the summary should show if there is support for your proposed research questions, propositions or hypotheses. Therefore, the summary will be the link to the next chapter in the report or dissertation which will introduce hypotheses, propositions or research questions. The introduction, the overall structure and the final summary should have a logical flow and should result in the identification of clear and logical areas for research. In other words, there should be a clear and logical thread through the review. A literature review is good when it helps the reader make sense of the literature, when it explains the relationships among the key concepts and why these relationships exist, and when it presents specific, testable hypotheses. 1.2.5 STYLE Clear writing is essential in a literature review. This is not easy. The material has been gathered from a variety of sources and written in a variety of styles. Presenting the review in a consistent clear style requires writing and rewriting. Often long sentences can be made clearer by breaking them up into two or more sentences. Good academic writing does not require long, difficult sentences. On the other hand, avoid the excessive use of bullet points and lists. Bullet points and lists can be the result of lazy writing and these should only be used where they are clearly appropriate. What also makes for clear writing is to avoid saying too much or repeating material in a slightly different form. If you do not have enough to say on a topic, it does not help to indulge in padding. Few reviewers or markers will not spot this. 2 Another writing approach to watch for is the excessive use of quotations. Quotations used with discretion can enhance a discussion but a review peppered with quotations, page after page, indicates that the writers did not take time to summarise and paraphrase. Good writing links one section to another with a linking sentence or paragraph. New writers often write in a staccato way with a series of ideas or statements which are not linked to each other. This style is difficult to read as the reader has to work out where the ‘story’ is going. The excessive use of the referencing form: –X (2005) states (points out, argues, contends …) or According to X (2005) can be quite tiring to the reader. Placing a reference after a sentence implies “according to” and is often far easier to read. Finally, academic writing avoids the use of jargon or a superficial style of writing such as is used in the popular press. It is fine for newspapers and magazines to use hyperbole or a chatty style but it jars in an academic work. It is best to avoid the use of ‘we’ and ‘our’ or ‘I’ and ‘my’. Definitely to be avoided is the use of ‘you’ and ‘your’. 1.2.6 CORRECTNESS AND QUALITY OF LAYOUT It goes without saying that there should be no errors in spelling and grammar. You will be penalised if it is obvious that a spell and grammar check was not conducted. In addition, take care with words such as ‘their’ and ‘there’. A spell check will not pick these up. Marks are awarded for the use of headings. They should be clear and appropriate. Numbering of headings can be used if you consider it appropriate. Sometimes it can help to follow the structure if the main heading is numbered say 1 and the sub-headings 1.1, 1.2, etc. However, please avoid too many levels. It can be disconcerting to see 1.1.1.2 for example. This also indicates a possible poor structure. Coupled with the marks for the headings are marks for the cover and the plagiarism statement. Finally, although a few marks are awarded for the printing, binding and paper used (under general), it can create a good impression to take a little care with this aspect. 3 2 LITERATURE REVIEW MARKING FORM Literature review Marking Form 2007 UNIVERSITY OF CAPE TOWN DEPARTMENT OF INFORMATION SYSTEMS EVALUATION FORM – LITERATURE REVIEW TITLE: STUDENT(S MARKER………………………………DATE: ……………TOTAL MARK: . % CONTENT SCORE /20 DEPTH OF TREATMENT Coverage of subject 0 3 6 9 12 15 Focus of topic 0 1 2 3 4 5 /15 ANALYTICAL HANDLING Objectivity 0 1 2 3 4 5 Integration of material 0 1 2 3 4 5 Argument/logic 0 1 2 3 4 5 /15 REFERENCING Readings – Quality, extent 0 1 2 3 4 5 Citation of sources 0 1 2 3 4 5 Bibliographical standards (listing) 0 1 2 3 4 5 Contents 0 1 2 3 4 5 Introduction and summary 0 1 2 3 4 5 Logical development 0 1 2 3 4 5 Research ideas identified 0 1 2 4 4 5 Clarity of expression 0 1 2 3 4 5 Flow of ideas 0 1 2 3 4 5 0 1 2 3 4 5 /20 STRUCTURE /20 STYLE Conciseness Maturity of treatment /5 CORRECTNESS Spelling/grammar 0 1 2 3 4 5 /5 QUALITY OF LAYOUT Headings, cover, general 0 1 2 TOTAL 3 4 5 /100 Comments 4