A Rationale-based Model for Architecture Design Reasoning

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the AREL model is incorrect and has violated the rules described above. A warning indicates that there is an element within the EAP file that is not part of the AREL model. For instance, all stand-alone architecture elements are highlighted as warnings. When the user has finished with the error window, clicking the OK button would close this window and transfer control to the AREL Model Checking screen. Figure 5 – AREL checking result screen If there are any errors or warnings as shown above, they are logged in the same directory as the EAP file. The name of the log file is the same as the EAP file name with a “.eapError.txt” extension. If there are any errors, the user cannot perform any other functions like Trace Model, Create ADDG Graph, Export BBN graph or Merge BBN graph. 231
4.2 AREL Model Tracing AREL model tracing can be used to help architects retrieve specific parts of the AREL model for traceability purposes. When this option is selected, the AREL tool would first check that the AREL model is correct before the trace menu is displayed. A message is shown at the bottom of the menu window to indicate that the checking is in progress (i.e. The message is Processing…). A window showing a summary of the errors and warnings would be displayed. Users should click OK to close the window after viewing the information. The model checking ensures that the trace would not end up in an infinite cycle should the AREL model had an error such as a cyclic model. If the model is consistent, then the traceability screen would be displayed (Figure 6) to specify trace criteria. Figure 6 – AREL trace specification screen This screen is used for specifying the trace criteria. The user has to input a valid architecture element (AE) name. As shown in the diagram above, this name must be identical to what is stored in the EAP file. Next, the user has to specify the Element Type and the Element Subtype. These two categories specify what types of AEs to be retrieved. There are four different viewpoint types classified in AREL: Business, Information, Application and Technology. Each of them specifies a perspective of the architecture. There are five sub-viewpoints in the Business Viewpoint, they specify different types of drivers which motivate the creation of an architecture. These sub- 232
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A Rationale-based Model for Archite
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maintenance. These techniques can h
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Declaration This thesis contains no
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2.2.6 DoD Architecture Framework .
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5.4.6 Risk assessment in architectu
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8.2 The architecture rationalisatio
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12.2 Contributions . . . . . . . .
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6.10 ≪AR≫ and ≪AAR≫ Stereot
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11.13A Process to Synchronise Chang
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5.13 Design Rationale Helps Evaluat
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that architecture design is highly
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1.2. Research motivations and resea
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1.2. Research motivations and resea
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1.4. Structure of the thesis the ch
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Part I Problem Analysis 10
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2.1. Industry practice of design ra
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2.2. Architecture frameworks and de
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Chapter 3 Related work in design ra
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3.2. Why do we need design rational
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3.2. Why do we need design rational
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3.3. Existing methods for capturing
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3.4. Other related studies 3.3.7 Qu
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3.4. Other related studies evolutio
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3.5. How well design rationale meth
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3.5. How well design rationale meth
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Chapter 4 Research methodology and
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4.1. Software engineering research
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4.2. The chosen research and valida
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Part II Architecture Design Rationa
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on a regular basis. Their inputs ha
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5.1. Architecture rationale in the
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5.2. Survey methodology data collec
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5.3. Survey findings experience). I
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5.3. Survey findings Table 5.1: Fre
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5.3. Survey findings Business Goals
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5.3. Survey findings 5.3.5 Document
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5.3. Survey findings Table 5.8 summ
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5.3. Survey findings We used Spearm
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5.3. Survey findings previous desig
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5.4. Discussion of findings Since t
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5.4. Discussion of findings or cons
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5.5. Limitations and use design rat
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Part III The Representation and App
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6.1. A conceptual model for design
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6.2. Architecture Rationale and Ele
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6.2. Architecture Rationale and Ele
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6.3. Architecture elements Figure 6
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6.4. Architecture rationale Figure
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6.4. Architecture rationale • ris
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6.4. Architecture rationale depicts
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6.5. The extended AREL To prevent c
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6.6. A UML representation of AREL a
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6.6. A UML representation of AREL a
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6.7. AREL usability AE by ≪AEsupe
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6.8. Summary The AREL model is exte
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7.1. The EFT system reasoning, a co
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7.1. The EFT system The processing
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7.1. The EFT system not chosen beca
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7.1. The EFT system Figure 7.5: Int
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7.1. The EFT system sequence checki
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7.1. The EFT system Figure 7.7: Dec
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7.1. The EFT system Therefore, in a
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7.1. The EFT system Figure 7.10: De
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7.2. An empirical study to validate
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7.3. Summary The case study is spec
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8.1. Background Based on these assu
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8.2. The architecture rationalisati
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8.3. Other applications of ARM As d
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8.3. Other applications of ARM Figu
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8.3. Other applications of ARM area
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Chapter 9 Architecture rationale an
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9.1. Background 9.1 Background In t
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9.2. Traceability of architecture r
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9.4. AREL and eAREL traceability ap
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Chapter 10 Architecture decision de
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10.1. Background 10.1.2 Introductio
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10.2. Building a BBN to represent a
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10.3. Reasoning about change impact
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Page 233 and 234: BIBLIOGRAPHY [10] B. W. Boehm, Soft
Page 235 and 236: BIBLIOGRAPHY [37] A. Eden and R. Ka
Page 237 and 238: BIBLIOGRAPHY [62] J. D. Herbsleb an
Page 239 and 240: BIBLIOGRAPHY [89] N. Lassing, D. Ri
Page 241 and 242: BIBLIOGRAPHY [115] D. L. Parnas,
Page 243 and 244: BIBLIOGRAPHY [142] Z. Simsek and J.
Page 245 and 246: BIBLIOGRAPHY [167] W. F. Tichy, N.
Page 247 and 248: Appendix A AREL Tool User Manual 1
Page 249: 4.1 AREL Check Model When the Check
Page 253 and 254: Figure 9 - result of downward trace
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Page 259 and 260: Useful Definitions The following ar
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Page 265 and 266: Complaint Procedure If you have any
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Page 269 and 270: B. Exploring design reasoning. 1. W
Page 271 and 272: 3. Why does the system use asynchro
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A Rationale-based Model for Architecture Design Reasoning

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