Title Page
Contents
ABSTRACT 8
Chapter 1. Introduction 10
Chapter 2. Background 12
2.1. Systems-Theoretic Process Analysis 12
2.2. Quality Attribute Scenario 13
2.3. Related Works 15
2.3.1. Identifying Quality Attribute Scenarios 15
2.3.2. Safety of Cyber-Physical Systems 16
2.3.3. Hazard Analysis on Cyber-Physical Systems 17
2.3.4. Safety of System of Systems 19
Chapter 3. An Approach to Identify Quality Attribute Scenarios from STPA 21
Chapter 4. Case Study 25
4.1. Downscaled Intelligent Transportation System 25
4.2. Applying the Proposed Approach 26
4.3. Evaluation 43
Chapter 5. Conclusion 46
References 47
Abstract (in Korean) 51
〈Table 1〉 Safety general scenario from [27] (cont.) 14
〈Table 2〉 Six parts of QAS from STPA results 23
〈Table 3〉 Identified losses of RIS and TCS 26
〈Table 4〉 Identified hazards of TCS 26
〈Table 5〉 Identified hazards of RIS 28
〈Table 6〉 UCAs, CSs, and QASs of TCS (cont.) 28
〈Table 7〉 UCAs, CSs, and QASs of RIS (cont.) 38
〈Table 8〉 New UCAs, CSs, and QASs of the overall downscaled ITS 42
〈Table 9〉 Newly generated requirements by applying the proposed approach (cont.) 44
〈Figure 1〉 STPA process 12
〈Figure 2〉 Process of the proposed approach 21
〈Figure 3〉 QAS identification process 22
〈Figure 4〉 A structure of overall downscaled ITS 27