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What types of information should you include in your introduction?
In the introduction of your thesis, you’ll be trying to do three main things, which are called Moves:
Each Move has a number of stages. Depending on what you need to say in your introduction, you might use one or more stages. Table 1 provides you with a list of the most commonly occurring stages of introductions in Honours theses (colour-coded to show the Moves). You will also find examples of Introductions, divided into stages with sample sentence extracts. Once you’ve looked at Examples 1 and 2, try the exercise that follows.
Most thesis introductions include SOME (but not all) of the stages listed in Table 1. There are variations between different Schools and between different theses, depending on the purpose of the thesis.
| 1. | state the general topic and give some background |
| 2. | provide a review of the literature related to the topic |
| 3. | define the terms and scope of the topic |
| 4. | outline the current situation |
| 5. | evaluate the current situation (advantages/ disadvantages) and identify the gap |
| 6. | identify the importance of the proposed research |
| 7. | state the research problem/ questions |
| 8. | state the research aims and/or research objectives |
| 9. | state the hypotheses |
| 10. | outline the order of information in the thesis |
| 11. | outline the methodology |
Reflection
Now read the following two examples from past theses, noting which stages are included in each example. How does example 1 differ from example 2?
Example 1. Evaluation of Boron Solid Source Diffusion for High-Efficiency Silicon Solar Cells (School of Photovoltaic & Renewable Energy Engineering)
| Stage | Sample sentence extracts (complete introduction is 4 pages) |
| 1. Give background about the topic | P-type layers are commonly used in solar cells as they offer a wide range of applications such as a back surface field… |
| 4. Outline current methods | …Currently in the PV industry aluminium-silicon alloying using screen-printed aluminium and belt furnace firing is the prevalent method of forming p-type layers because it is relatively easy and also forms the rear electrical contact… |
| 5. Evaluate current methods | …The use of aluminium as p-type dopant has two major disadvantages, however… |
| 6. Identify importance of proposed research | …Given the limitations associated with using Al to form p-type diffusion, boron as a dopant for diffused layers is therefore more suitable for high-efficiency silicon solar cells… |
| 8. State research aims | …The goal of this thesis is to evaluate boron nitride (BN) as a potential replacement for liquid-source diffusion presently being used for p-type diffusions in the high-efficiency buried contact solar cells under development at UNSW… |
| 10. Outline order of imformation in the thesis | …This thesis is divided into five chapters: Chapter 2 discusses in more detail about diffusions in general and the case of boron diffusion…Chapter 3 outlines the experimental work carried out in the project… |
Example 2 . Methods for Measuring Hepatitis C Viral Complexity (School of Biotechnology & Biological Sciences)
(Note: this introduction includes the literature review)
| Stage | Sample sentence extracts (complete introduction is 11 pages) |
| 1. State the general topic | …The hepatitis C virus (HCV) is a significant human pathogen given that 3% of the world’s population are infected with the virus… |
| 1. (2) Give some background about the topic | …The HCV genome is a positive sense, single stranded RNA molecule with an approximate length of 9.5kb… |
| 3. (2) Define the terms and scope of the topic | …Quasispecies are defined as a population of closely related minor genetic variants and are a noted phenomenon of plant and RNA viruses…It has been widely recognised that treatment outcome is highly dependent on the complexity… |
| 5. (2) Evaluate current situation | …Cloning and sequencing is considered a time-consuming and laborious method and as such there exists a need for the development of simple alternative methods… |
| 5. (2) Identify the gap in current research | …At present there is no suitable method that has produced results comparable to that of cloning and sequencing which also has the additional properties of simplicity and rapidity… |
| 6. Identify importance of proposed research | …There is mounting evidence, however, that immediate treatment will result in successful eradication of HCV. Therefore studies of acute phase quasispecies will enhance the understanding of the early virological events of newly acquired HCV infection and ultimately the disease process itself. |
| 9. State the hypothesis | The hypotheses for this study are that there exist suitable parameters to assess quasispecies complexity. Furthermore, a rapid and simpler alternative method to cloning and sequencing can be developed to accurately describe the complexity of a given quasispecies population… |
| 8. State research aims | 1. Define a set of parameters to analyse quasispecies complexity.
2. Develop a simpler and rapid alternative to cloning and sequencing that would accurately assess complexity of quasispecies populations…. |
Now that you have read example 1 and 2, what are the differences?
Exercise
Read the following sample sentence extracts from Honours theses Introductions. When you have decided what stage of the Introduction they belong to, refer to Table 1 and give each sentence extract a number. Then check the suggested answer to see if your answer agrees with ours.
Example 3: The IMO Severe-Weather Criterion Applied to High-Speed Monohulls (School of Mechanical & Manufacturing Engineering)
| Sample sentence extracts (complete introduction is 6 pages) | Stage No: |
| …The IMO Severe Wind and Rolling (Severe-Weather) Criterion is a stability criterion that has been developed to assess the dynamic stability of a vessel… | |
| The theory behind the Severe-Weather Criterion is sound, and has a lot of merit. However, many of the new generation of high-speed monohulls are having trouble passing the criterion… | |
| …As a result, it is believed that the formula used to predict the windward roll angle θ1 is flawed and over-predicts the rolling amplitude for high-speed monohulls… | |
| …Thus it is desired to evaluate the actual rolling amplitude that these vessels will experience… | |
| In order to evaluate how the Severe-Weather Criterion is applied to high-speed monohulls, two vessels have been used as a case study… |
Example 4. The Steiner Tree Problem (School of Computer Science & Engineering)
| Sample sentence extracts (complete introduction is 4 pages) | Stage No: |
| The Steiner Minimal Tree (SMT) problem is about finding the minimum connecting network for a set of points. Its minimal property implies that the network must be a tree… | |
| Formally, the problem can be stated as follows: given N points in the Euclidean plane, find the minimum spanning tree that covers these N points. Additional points besides these N points can be added to the tree as extra vertices… | |
| The SMT is a very interesting problem both in theoretical computer science and many practical applications. Like other graph problems, it is fundamental to solving many common problems, such as communication network planning and VLSI circuit design. The following are some examples… | |
| This section describes the contents of the rest of the thesis…Section 2 provides a literature survey on Steiner trees, including a number of exact and heuristic algorithms developed… |
Reflection: What does this tell you about thesis introductions?
Well, firstly, there are many choices that you can make. You will notice that there are variations not only between the different Schools in your faculty, but also between individual theses, depending on the type of information that is being communicated. However, there are a few elements that a good Introduction should include, at the very minimum: