Model-Based Engineering with AADL: An Introduction to the SAE Architecture Analysis & Design Language

Conventional build-then-test practices are making today’s embedded, software-reliant systems unaffordable to build. In response, more than thirty leading industrial organizations have joined SAE (formerly, the Society of Automotive Engineers) to define the SAE Architecture Analysis & Design Language (AADL) AS-5506 Standard, a rigorous and extensible foundation for model-based engineering analysis practices that encompass software system design, integration, and assurance. Using AADL, you can conduct lightweight and rigorous analyses of critical real-time factors such as performance, dependability, security, and data integrity. You can integrate additional established and custom analysis/specification techniques into your engineering environment, developing a fully unified architecture model that makes it easier to build reliable systems that meet customer expectations.   Model-Based Engineering with AADL is the first guide to using this new international standard to optimize your development processes. Coauthored by Peter H. Feiler, the standard’s author and technical lead, this introductory reference and tutorial is ideal for self-directed learning or classroom instruction, and is an excellent reference for practitioners, including architects, developers, integrators, validators, certifiers, first-level technical leaders, and project managers. Packed with real-world examples, it introduces all aspects of the AADL notation as part of an architecture-centric, model-based engineering approach to discovering embedded software systems problems earlier, when they cost less to solve. Throughout, the authors compare AADL to other modeling notations and approaches, while presenting the language via a complete case study: the development and analysis of a realistic example system through repeated refinement and analysis.   Part One introduces both the AADL language and core Model-Based Engineering (MBE) practices, explaining basic software systems modeling and analysis in the context of an example system, and offering practical guidelines for effectively applying AADL.   Part Two describes the characteristics of each AADL element, including their representations, applicability, and constraints.   The Appendix includes comprehensive listings of AADL language elements, properties incorporated in the AADL standard, and a description of the book’s example system.  

Table of Contents:
Preface         xv   Introduction         1   PART I: Model-Based Engineering and the AADL         3 Chapter 1: Model-Based Software Systems Engineering         5 1.1 MBE and Software System Engineering   6 1.2 AADL and Other Modeling Languages   12   Chapter 2: Working with the SAE AADL         17 2.1 AADL Models   19 2.2 System Specification and System Instances   26   Chapter 3: Modeling and Analysis with the AADL: The Basics         31 3.1 Developing a Simple Model   31 3.2 Representing Code Artifacts   47 3.3 Modeling Dynamic Reconfigurations   51 3.4 Modeling and Analyzing Abstract Flows   55 3.5 Developing a Conceptual Model   58 3.6 Working with Component Patterns   69   Chapter 4: Applying AADL Capabilities         77 4.1 Specifying System Composition   77 4.2 Component Interactions   84 4.3 Modeling Data and Its Use   97 4.4 Organizing a Design   101   PART II: Elements of the AADL         109 Chapter 5: Defining AADL Components         113 5.1 Component Names   113 5.2 Component Categories   114 5.3 Declaring Component Types   114 5.4 Declaring a Component’s External Interfaces   118 5.5 Declaring Component Implementations   121 5.6 Summary   125   Chapter 6: Software Components         127 6.1 Thread   128 6.2 Thread Group   133 6.3 Process   135 6.4 Data   138 6.5 Subprogram   141 6.6 Subprogram Group   144   Chapter 7: Execution Platform Components         147 7.1 Processor   148 7.2 Virtual Processor   151 7.3 Memory   153 7.4 Bus   156 7.5 Virtual Bus   158 7.6 Device   160   Chapter 8: Composite and Generic Components         163 8.1 System   163 8.2 Abstract   165   Chapter 9: Static and Dynamic Architecture         169 9.1 Subcomponents   169 9.2 Modes   173   Chapter 10: Component Interactions          185 10.1 Ports and Connections   186 10.2 Data Access and Connections   210 10.3 Bus Access and Connections   213 10.4 Feature Groups and Connections   217 10.5 Abstract Features and Connections   225 10.6 Arrays and Connections   227 10.7 Subprogram Calls, Access, and Instances   232 10.8 Parameter Connections   240   Chapter 11: System Flows and Software Deployment          245 11.1 Flows   245 11.2 Binding Software to Hardware   256   Chapter 12: Organizing Models         263 12.1 Naming and Referencing Model Elements   263 12.2 Organizing Models with Packages   266 12.3 Evolving Models by Classifier Refinement   273 12.4 Prototypes as Classifier Parameters   281   Chapter 13: Annotating Models         289 13.1 Documenting Model Elements   289 13.2 Using Properties   291   Chapter 14: Extending the Language         303 14.1 Property Sets   303 14.2 Annex Sublanguages   312   Chapter 15: Creating and Validating Models         317 15.1 Model Creation   317 15.2 Model Creation Tools   319 15.3 System Validation and Generation   321 15.4 System Validation and Generation Tools   322   Appendixes         325 Appendix A: Syntax and Property Summary         327 A.1 AADL Syntax   327 A.2 Component Type and Implementation Elements   342 A.3 Basic Property Types and Type Constructors   347 A.4 AADL Reserved Words   348 A.5 AADL Properties   349 A.6 Runtime Services   418 A.7 Powerboat Autopilot System   425   Appendix B: Additional Resources         429 B.1 Modeling System Architectures   429 B.2 Cases Studies   431   Appendix C: References         435   Index         441