Chapter 7 — Dissertation writing and limitations
Lesson map
Lesson 07 published. Map, example, EX039.
flowchart TD
N0["Learning outcomes"]
N1["7.1 Structure"]
N2["7.2 Limitations"]
N3["7.3 Two audiences"]
N4["7.4 Linking to frameworks"]
N5["Synthesis"]
N0 --> N1 --> N2 --> N3 --> N4 --> N5
N5 --> EX["Worked example"]
EX --> Q["Exercise EX039"]
Logical drawing
flowchart LR
N0["Learning outcomes"]
N1["7.1 Structure"]
N2["7.2 Limitations"]
N3["7.3 Two audiences"]
N4["7.4 Linking to frameworks"]
N5["Synthesis"]
N0 --> N1 --> N2 --> N3 --> N4 --> N5 --> Q["EX039"]
[Learning outcomes]
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[7.1 Structure]
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[7.2 Limitations]
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[7.3 Two audiences]
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[7.4 Linking to frameworks]
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v
[Synthesis]
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v
[Worked example] --> [Exercise EX039]
Learning outcomes
You will (1) structure a master's dissertation; (2) write a candid limitations section; (3) report results for both academic and practitioner readers.
7.1 Structure
Lucas structures his dissertation in seven parts: introduction, literature and standards, method, results, rival explanations, discussion and conclusion, followed by appendices with the analysis plan, codebook and scripts. Each results claim cites a table or figure, and each table states its sample size. He keeps the main text near 20,000 words, as Marlow requires, moving long material to appendices. He writes the method so precisely that another student at another company could repeat the study with their own access data. He follows the template.
7.2 Limitations
His limitations section is direct. The design is observational, so frequency may not be the cause. Diligence remains a partial alternative explanation. The study covers one company in one year. Excess access depends on the role catalogue, which was revised during the pilot. The bootstrap interval is wide. The cost estimate relies on self-logged hours, which may be inaccurate. For each limit he states how it could bias results and in which direction, rather than listing limits without consequences, so readers can weigh them.
7.3 Two audiences
Lucas writes a four-page practitioner summary for Tessaly alongside the dissertation. It avoids statistical jargon, explains that quarterly units had about half the excess access with a wide margin of uncertainty, and presents the risk-based option with its cost. He is careful not to overstate. He also shows the summary to two unit managers, who point out that a phrase implied their units were careless. He rewrites it, because reports that blame groups can reduce cooperation in future reviews. Both managers approve it.
7.4 Linking to frameworks
In the discussion, Lucas relates his findings to frameworks. ISO/IEC 27001:2022 requires monitoring and evaluation of the management system, and his method offers one way to evaluate an access control rather than only confirming that reviews took place. NIST CSF 2.0 Govern outcomes include oversight of risk management strategy, and he suggests boards ask for outcome measures like excess-access rates. He frames these as suggestions grounded in one study, not as requirements of the standards, which he paraphrases rather than quotes at length.
Worked example
Lucas writes a seven-part dissertation, states each limit with its likely bias and produces a non-blaming practitioner summary.
Synthetic case. The dissertation is synthetic; the standards are real.
Errors and limits
Practitioner summaries can oversimplify. Framework links are interpretations.
Exercises
- EX039 — Main text length. Roughly how long is the main text? Rubric: 3 = about 20,000 words;; 2 = 20k;; 1 = vague;; 0 = none.
- EX040 — Limit style. How does Lucas present each limitation? Rubric: 3 = with its likely bias and direction;; 2 = bias;; 1 = list only;; 0 = none.
- EX041 — Self-logged hours. Which limitation affects the cost estimate? Rubric: 3 = hours were self-logged;; 2 = self-report;; 1 = vague;; 0 = none.
- EX042 — Summary length. How long is the practitioner summary? Rubric: 3 = four pages;; 2 = 4;; 1 = vague;; 0 = none.
- EX043 — Manager feedback. Why did Lucas rewrite a phrase in the summary? Rubric: 3 = it implied units were careless;; 2 = blame;; 1 = vague;; 0 = none.
- EX044 — Board suggestion. What does Lucas suggest boards ask for? Rubric: 3 = outcome measures such as excess-access rates;; 2 = outcomes;; 1 = vague;; 0 = none.
Synthesis
Good dissertations make claims traceable, limits consequential and summaries fair.
Continue studying — chapter 07 of 08
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