Project P aims to develop qualifiable model compilers for safety-critical systems. It will support generating code from heterogeneous models, qualify as a DO-178 development tool, and improve verification of model integration. The technical approach involves defining a pivot formalism as an intermediate representation, as well as design and code metamodels to factorize representations independently of the target platform. It will also define a generic framework and process for instantiating model compilation chains and qualifying them in an agile manner.
The document discusses architectural UML and provides information on:
1) The elements of a software architecture including views, models, and diagrams.
2) How UML can be used to represent different architectural views including design, process, development, and physical views.
3) An example of using UML models and diagrams to represent different views of a chess game architecture.
6 - Architetture Software - Model transformationMajong DevJfu
This document discusses model transformations in Model-Driven Architecture (MDA). It defines computation independent models (CIMs), platform independent models (PIMs), and platform specific models (PSMs). It explains that model transformations are used to map between these different abstraction levels and ensure consistency. It also discusses model mappings, approaches to transformations, and tools like EMF and ATL that support transformations in Eclipse.
This document outlines the course structure and content for a 10-session introduction to digital design using VHDL course offered by Start Group in Cairo, Egypt. The course will cover VHDL basics, modeling combinational and sequential logic, finite state machines, testbenches, and culminate in an FPGA workshop. Sessions are structured around lecture, examples, exercises, labs, and mini-projects. Students will learn VHDL, simulation tools, and FPGA implementation through hands-on practice and a main project.
The document describes different levels of text styles in VHDL code and provides an example of an entity and architecture for a 2-input AND gate, with the entity defining the inputs and output ports and the architecture describing the operation that the output C is assigned the logical AND of the inputs A and B using a non-blocking assignment.
This document provides an overview of various types of architectural standards including conceptual standards like IEEE 1471 and DoDAF that define viewpoints and views, notational standards like UML and SysML, and process standards like TOGAF and RUP. It discusses the benefits of standards in promoting interoperability and network effects while also noting drawbacks like limiting flexibility. The document advises deciding when to adopt a standard based on whether in the early or late phase of a project.
This document provides an overview of software architectures by presenting examples of architectures from various software systems. It begins with an introduction to software architecture and what it entails. It then shows numerous diagrams and visualizations of architectures for different types of systems, such as editors, compilers, operating systems, middleware, and web applications. These examples are intended to demonstrate common architectural patterns and styles. The document discusses analyzing and comparing the architectures visually and recognizing patterns within them.
This document discusses how traditional object-oriented programming practices and patterns may not directly apply to dynamic programming languages. It provides examples of how concepts like immutability, encapsulation, and testing are different in dynamic languages that support features like duck typing, metaprogramming, and runtime changes. The document advocates expressing intent clearly through interfaces and composition over rigid patterns and hierarchies when using dynamic languages. It also notes tradeoffs with IDE support when using dynamic features.
The document discusses architectural UML and provides information on:
1) The elements of a software architecture including views, models, and diagrams.
2) How UML can be used to represent different architectural views including design, process, development, and physical views.
3) An example of using UML models and diagrams to represent different views of a chess game architecture.
6 - Architetture Software - Model transformationMajong DevJfu
This document discusses model transformations in Model-Driven Architecture (MDA). It defines computation independent models (CIMs), platform independent models (PIMs), and platform specific models (PSMs). It explains that model transformations are used to map between these different abstraction levels and ensure consistency. It also discusses model mappings, approaches to transformations, and tools like EMF and ATL that support transformations in Eclipse.
This document outlines the course structure and content for a 10-session introduction to digital design using VHDL course offered by Start Group in Cairo, Egypt. The course will cover VHDL basics, modeling combinational and sequential logic, finite state machines, testbenches, and culminate in an FPGA workshop. Sessions are structured around lecture, examples, exercises, labs, and mini-projects. Students will learn VHDL, simulation tools, and FPGA implementation through hands-on practice and a main project.
The document describes different levels of text styles in VHDL code and provides an example of an entity and architecture for a 2-input AND gate, with the entity defining the inputs and output ports and the architecture describing the operation that the output C is assigned the logical AND of the inputs A and B using a non-blocking assignment.
This document provides an overview of various types of architectural standards including conceptual standards like IEEE 1471 and DoDAF that define viewpoints and views, notational standards like UML and SysML, and process standards like TOGAF and RUP. It discusses the benefits of standards in promoting interoperability and network effects while also noting drawbacks like limiting flexibility. The document advises deciding when to adopt a standard based on whether in the early or late phase of a project.
This document provides an overview of software architectures by presenting examples of architectures from various software systems. It begins with an introduction to software architecture and what it entails. It then shows numerous diagrams and visualizations of architectures for different types of systems, such as editors, compilers, operating systems, middleware, and web applications. These examples are intended to demonstrate common architectural patterns and styles. The document discusses analyzing and comparing the architectures visually and recognizing patterns within them.
This document discusses how traditional object-oriented programming practices and patterns may not directly apply to dynamic programming languages. It provides examples of how concepts like immutability, encapsulation, and testing are different in dynamic languages that support features like duck typing, metaprogramming, and runtime changes. The document advocates expressing intent clearly through interfaces and composition over rigid patterns and hierarchies when using dynamic languages. It also notes tradeoffs with IDE support when using dynamic features.
The document discusses OMG model transformation standards being implemented in Eclipse, including QVT Relations and MTL. It describes Obeo's work on these projects, challenges around standardization and interoperability, and ambiguities in the OMG specifications being addressed.
Software Parallelisation & Platform Generation for Heterogeneous Multicore Ar...chiportal
This document discusses software parallelization and platform generation for heterogeneous multicore architectures. It describes the MP Designer tool suite which performs parallelization of C code for heterogeneous multicore systems using pragmas. The tool performs dependency analysis and generates task graphs to explore parallelization options and balance processor loads. It uses a point-to-point communication model with FIFOs to synchronize tasks running on different processor cores. The document provides an example of exploring various parallelization strategies for JPEG encoding on multiple processor cores.
Verteilte Synchronisierung von Modellen in automatisierten EntwicklungsprozessenIntland Software GmbH
ModelBus is a model-driven tool integration framework that allows for the seamless integration of development tools. It is based on service-oriented architecture principles and standards to enable the plugging in of commercial off-the-shelf tools to automate development processes. ModelBus provides services like transformation, simulation, and testing and supports capabilities like notification, access control, and synchronization across tools and repositories.
Software Product Line (SPL) engineering is a paradigm shift towards modeling and developing software system families rather than individual systems. It focuses on the means of efficiently producing and maintaining multiple similar software products, exploiting what they have in common and managing what varies among them. This is analogous to what is practiced in the automotive industry, where the focus is on creating a single production line, out of which many customized but similar variations of a car model are produced. Feature models (FMs) are a fundamental formalism for specifying and reasoning about commonality and variability of SPLs. FMs are becoming increasingly complex, handled by several stakeholders or organizations, used to describe features at various levels of abstraction and related in a variety of ways. In different contexts and application domains, maintaining a single large FM is neither feasible nor desirable. Instead, multiple FMs are now used. In this thesis, we develop theoretical foundations and practical support for managing multiple FMs. We design and develop a set of composition and decomposition operators (aggregate, merge, slice) for supporting separation of concerns. The operators are formally defined, implemented with a fully automated algorithm and guarantee properties in terms of sets of configurations. We show how the composition and decomposition operators can be combined together or with other reasoning and editing operators to realize complex tasks. We propose a textual language, FAMILIAR (for FeAture Model scrIpt Language for manIpulation and Automatic Reasoning), which provides a practical solution for managing FMs on a large scale. An SPL practitioner can combine the different operators and manipulate a restricted set of concepts (FMs, features, configurations, etc.) using a concise notation and language facilities. FAMILIAR hides implementation details (e.g., solvers) and comes with a development environment. We report various applications of the operators and usages of FAMILIAR in different domains (medical imaging, video surveillance) and for different purposes (scientific workflow design, variability modeling from requirements to runtime, reverse engineering), showing the applicability of both the operators and the supporting language. Without the new capabilities brought by the operators and FAMILIAR, some analysis and reasoning operations would not be made possible in the different case studies. To conclude, we discuss different research perspectives in the medium term (regarding the operators, the language and validation elements) and in the long term (e.g., relationships between FMs and other models).
This document provides an introduction to model-driven software development (MDSD). It discusses what MDSD is, why organizations adopt it, and how it can be applied. Key aspects of MDSD covered include code generation, domain-specific languages, separation of concerns, and economic benefits such as reduced costs from economies of scale and scope. The document also reviews various tools and approaches used in MDSD, including those based on UML, EMF, and DSLs. It concludes by emphasizing that MDSD can help improve software productivity and help establish true software engineering practices.
Preparing for the era of cloud computing: Towards a framework for selecting b...Ilia Bider
This document presents a framework for analyzing business processes to help business people select appropriate cloud-based business process support services. It describes analyzing processes to identify properties like input/output relationships, parallel execution, and collaboration between steps. Capabilities that services can provide like information logistics, collaboration support, and process flow enforcement are identified. The framework matches identified process properties with required capabilities to recommend services.
5 - Architetture Software - Metamodelling and the Model Driven ArchitectureMajong DevJfu
The document discusses metamodeling and the Model Driven Architecture (MDA). It covers topics such as model driven engineering, metamodeling, metamodeling in UML, and the OMG technologies that support MDA. Metamodeling involves modeling modeling elements and their relationships. Metamodels define the structure of models, while models are instances that conform to metamodels. The MDA uses metamodels and models to develop and transform systems.
The document provides an overview of model-driven software development (MDSD). It discusses key concepts like models, domain-specific languages, code generation, and separation of concerns. The document also outlines some of the potential benefits of MDSD, including economies of scale and scope through reusable models and code generation. Overall, MDSD aims to increase productivity and quality by raising the level of abstraction and automating repetitive tasks.
This document provides an outline for a lesson on VHDL including data objects like signals, sequential and combinational logic, and VHDL statements. It discusses signals, internal signals, examples of internal signals in a NAND gate, and an exercise writing code for a logic circuit. It also defines combinational vs sequential logic, and discusses concurrent and sequential statements in VHDL.
Model Transformation from BPMN to DEVS in a Prototype Implementation of the M...Daniele Gianni
Presentation at the 2nd International Workshop on Model-driven Approaches for Simulation Engineering
(held within the SCS/IEEE Symposium on Theory of Modeling and Simulation part of SpringSim 2012)
Please see: http://www.sel.uniroma2.it/mod4sim12/ for further details
The document discusses using design patterns and constraints to automate the detection and correction of inter-class design defects. It presents a tool called Ptidej that models design patterns as abstract models with constraints, detects distorted concrete models in code, and helps correct defects. The tool is evaluated on several open source projects, demonstrating its ability to assess flexibility and understandability by making code conform more closely to design patterns. Future work aims to improve semantics, scalability, and automation.
The document discusses the purpose and process of software design. It describes software design as where customer requirements, business needs, and technical considerations come together to formulate a product or system. The design model provides detail about data structures, architecture, interfaces, and components. It can be assessed for quality before implementation. The document outlines the tasks in software design including examining data models, selecting an architecture, partitioning models into subsystems, and designing classes, components, interfaces, data structures, and algorithms. It also discusses the phases, methods, strategies, and importance of quality in software design.
Industrial and Academic Experiences with a User Interaction Modeling Language...Marco Brambilla
This document discusses an industrial and academic modeling language called WebML used for modeling user interaction and interfaces. WebML was created to address the need for a standard modeling notation for user interaction that had usability and tool support. The document outlines the objectives of WebML which are to model the view components, modules, events and interactions of applications. It also describes the WebML notation and how it effectively models concepts like pages, navigation, and events with minimal overhead. Several successful industrial use cases are presented, including applications developed for Acer, GTT transportation group, and A2A utility, which demonstrate the benefits of WebML for rapid prototyping.
The document outlines replacements for keywords, statements, punctuators, data types, return types, predefined directives, functions, operators, and other elements in a programming language for a compiler being built. Key replacements include FOR, TILL, THIS, OTHERWISE for loops and conditionals, < > for braces, : for semicolons, and INT, FLOAT, CHAR for data types. It also defines operator precedence and covers structures, classes, and that the project was created by Rida Sarwar Bilgrami.
UNPACKED: The 4 Types of Endorser StrategiesAlex Goh
"UNPACKED" is a series of client work developed long ago, or work that never saw the light of day. All content has been edited to remove sensitive client data/information/proposals where necessary.
Why "UNPACKED"? It's based on the belief that, like books, the true value of content is manifested only when it's for public benefit, rather than kept in private - on shelves or buried in one's digital device.
This slide deck (an excerpt from a fuller strategic deck) specifically was created to help frame the different ways a brand can pursue the use of a personality/celebrity.
Strategies explored here is of course by no means exhaustive; but merely a point-of-view and an attempt to capture the most common strategies applied.
Phased Startup Story - Project Status UpdatingColin MacInnis
Phased is a company located on Cape Breton Island in Nova Scotia that was originally part of a startup program called UIT. The company was incorporated on February 13, 2015 by Colin and Brian who had backgrounds in Google Glass and teaching paddleboard lessons respectively and are now working from the Navigate Startup House in Sydney, NS.
This document provides information about the CS416 Compiler Design course, including the instructor details, prerequisites, textbook, grading breakdown, course outline, and an overview of the major parts and phases of a compiler. The course will cover topics such as lexical analysis, syntax analysis using top-down and bottom-up parsing, semantic analysis using attribute grammars, intermediate code generation, code optimization, and code generation.
Phases of the Compiler - Systems ProgrammingMukesh Tekwani
The document describes the various phases of compilation:
1. Lexical analysis scans the source code and groups characters into tokens.
2. Syntax analysis checks syntax and constructs parse trees.
3. Semantic analysis generates intermediate code, checks for semantic errors using symbol tables, and enforces type checking.
4. Optional optimization improves programs by making them more efficient.
The document discusses developing integrated marketing communication message strategies. It states that all brand messages should create awareness, change or reinforce attitudes, stimulate a response or action, and build brand relationships. It also discusses developing creative briefs to guide message creation, including restating marketing objectives and the intended message impact. Finally, it emphasizes the importance of consistency across all communication channels to build a clear brand image.
The document discusses OMG model transformation standards being implemented in Eclipse, including QVT Relations and MTL. It describes Obeo's work on these projects, challenges around standardization and interoperability, and ambiguities in the OMG specifications being addressed.
Software Parallelisation & Platform Generation for Heterogeneous Multicore Ar...chiportal
This document discusses software parallelization and platform generation for heterogeneous multicore architectures. It describes the MP Designer tool suite which performs parallelization of C code for heterogeneous multicore systems using pragmas. The tool performs dependency analysis and generates task graphs to explore parallelization options and balance processor loads. It uses a point-to-point communication model with FIFOs to synchronize tasks running on different processor cores. The document provides an example of exploring various parallelization strategies for JPEG encoding on multiple processor cores.
Verteilte Synchronisierung von Modellen in automatisierten EntwicklungsprozessenIntland Software GmbH
ModelBus is a model-driven tool integration framework that allows for the seamless integration of development tools. It is based on service-oriented architecture principles and standards to enable the plugging in of commercial off-the-shelf tools to automate development processes. ModelBus provides services like transformation, simulation, and testing and supports capabilities like notification, access control, and synchronization across tools and repositories.
Software Product Line (SPL) engineering is a paradigm shift towards modeling and developing software system families rather than individual systems. It focuses on the means of efficiently producing and maintaining multiple similar software products, exploiting what they have in common and managing what varies among them. This is analogous to what is practiced in the automotive industry, where the focus is on creating a single production line, out of which many customized but similar variations of a car model are produced. Feature models (FMs) are a fundamental formalism for specifying and reasoning about commonality and variability of SPLs. FMs are becoming increasingly complex, handled by several stakeholders or organizations, used to describe features at various levels of abstraction and related in a variety of ways. In different contexts and application domains, maintaining a single large FM is neither feasible nor desirable. Instead, multiple FMs are now used. In this thesis, we develop theoretical foundations and practical support for managing multiple FMs. We design and develop a set of composition and decomposition operators (aggregate, merge, slice) for supporting separation of concerns. The operators are formally defined, implemented with a fully automated algorithm and guarantee properties in terms of sets of configurations. We show how the composition and decomposition operators can be combined together or with other reasoning and editing operators to realize complex tasks. We propose a textual language, FAMILIAR (for FeAture Model scrIpt Language for manIpulation and Automatic Reasoning), which provides a practical solution for managing FMs on a large scale. An SPL practitioner can combine the different operators and manipulate a restricted set of concepts (FMs, features, configurations, etc.) using a concise notation and language facilities. FAMILIAR hides implementation details (e.g., solvers) and comes with a development environment. We report various applications of the operators and usages of FAMILIAR in different domains (medical imaging, video surveillance) and for different purposes (scientific workflow design, variability modeling from requirements to runtime, reverse engineering), showing the applicability of both the operators and the supporting language. Without the new capabilities brought by the operators and FAMILIAR, some analysis and reasoning operations would not be made possible in the different case studies. To conclude, we discuss different research perspectives in the medium term (regarding the operators, the language and validation elements) and in the long term (e.g., relationships between FMs and other models).
This document provides an introduction to model-driven software development (MDSD). It discusses what MDSD is, why organizations adopt it, and how it can be applied. Key aspects of MDSD covered include code generation, domain-specific languages, separation of concerns, and economic benefits such as reduced costs from economies of scale and scope. The document also reviews various tools and approaches used in MDSD, including those based on UML, EMF, and DSLs. It concludes by emphasizing that MDSD can help improve software productivity and help establish true software engineering practices.
Preparing for the era of cloud computing: Towards a framework for selecting b...Ilia Bider
This document presents a framework for analyzing business processes to help business people select appropriate cloud-based business process support services. It describes analyzing processes to identify properties like input/output relationships, parallel execution, and collaboration between steps. Capabilities that services can provide like information logistics, collaboration support, and process flow enforcement are identified. The framework matches identified process properties with required capabilities to recommend services.
5 - Architetture Software - Metamodelling and the Model Driven ArchitectureMajong DevJfu
The document discusses metamodeling and the Model Driven Architecture (MDA). It covers topics such as model driven engineering, metamodeling, metamodeling in UML, and the OMG technologies that support MDA. Metamodeling involves modeling modeling elements and their relationships. Metamodels define the structure of models, while models are instances that conform to metamodels. The MDA uses metamodels and models to develop and transform systems.
The document provides an overview of model-driven software development (MDSD). It discusses key concepts like models, domain-specific languages, code generation, and separation of concerns. The document also outlines some of the potential benefits of MDSD, including economies of scale and scope through reusable models and code generation. Overall, MDSD aims to increase productivity and quality by raising the level of abstraction and automating repetitive tasks.
This document provides an outline for a lesson on VHDL including data objects like signals, sequential and combinational logic, and VHDL statements. It discusses signals, internal signals, examples of internal signals in a NAND gate, and an exercise writing code for a logic circuit. It also defines combinational vs sequential logic, and discusses concurrent and sequential statements in VHDL.
Model Transformation from BPMN to DEVS in a Prototype Implementation of the M...Daniele Gianni
Presentation at the 2nd International Workshop on Model-driven Approaches for Simulation Engineering
(held within the SCS/IEEE Symposium on Theory of Modeling and Simulation part of SpringSim 2012)
Please see: http://www.sel.uniroma2.it/mod4sim12/ for further details
The document discusses using design patterns and constraints to automate the detection and correction of inter-class design defects. It presents a tool called Ptidej that models design patterns as abstract models with constraints, detects distorted concrete models in code, and helps correct defects. The tool is evaluated on several open source projects, demonstrating its ability to assess flexibility and understandability by making code conform more closely to design patterns. Future work aims to improve semantics, scalability, and automation.
The document discusses the purpose and process of software design. It describes software design as where customer requirements, business needs, and technical considerations come together to formulate a product or system. The design model provides detail about data structures, architecture, interfaces, and components. It can be assessed for quality before implementation. The document outlines the tasks in software design including examining data models, selecting an architecture, partitioning models into subsystems, and designing classes, components, interfaces, data structures, and algorithms. It also discusses the phases, methods, strategies, and importance of quality in software design.
Industrial and Academic Experiences with a User Interaction Modeling Language...Marco Brambilla
This document discusses an industrial and academic modeling language called WebML used for modeling user interaction and interfaces. WebML was created to address the need for a standard modeling notation for user interaction that had usability and tool support. The document outlines the objectives of WebML which are to model the view components, modules, events and interactions of applications. It also describes the WebML notation and how it effectively models concepts like pages, navigation, and events with minimal overhead. Several successful industrial use cases are presented, including applications developed for Acer, GTT transportation group, and A2A utility, which demonstrate the benefits of WebML for rapid prototyping.
The document outlines replacements for keywords, statements, punctuators, data types, return types, predefined directives, functions, operators, and other elements in a programming language for a compiler being built. Key replacements include FOR, TILL, THIS, OTHERWISE for loops and conditionals, < > for braces, : for semicolons, and INT, FLOAT, CHAR for data types. It also defines operator precedence and covers structures, classes, and that the project was created by Rida Sarwar Bilgrami.
UNPACKED: The 4 Types of Endorser StrategiesAlex Goh
"UNPACKED" is a series of client work developed long ago, or work that never saw the light of day. All content has been edited to remove sensitive client data/information/proposals where necessary.
Why "UNPACKED"? It's based on the belief that, like books, the true value of content is manifested only when it's for public benefit, rather than kept in private - on shelves or buried in one's digital device.
This slide deck (an excerpt from a fuller strategic deck) specifically was created to help frame the different ways a brand can pursue the use of a personality/celebrity.
Strategies explored here is of course by no means exhaustive; but merely a point-of-view and an attempt to capture the most common strategies applied.
Phased Startup Story - Project Status UpdatingColin MacInnis
Phased is a company located on Cape Breton Island in Nova Scotia that was originally part of a startup program called UIT. The company was incorporated on February 13, 2015 by Colin and Brian who had backgrounds in Google Glass and teaching paddleboard lessons respectively and are now working from the Navigate Startup House in Sydney, NS.
This document provides information about the CS416 Compiler Design course, including the instructor details, prerequisites, textbook, grading breakdown, course outline, and an overview of the major parts and phases of a compiler. The course will cover topics such as lexical analysis, syntax analysis using top-down and bottom-up parsing, semantic analysis using attribute grammars, intermediate code generation, code optimization, and code generation.
Phases of the Compiler - Systems ProgrammingMukesh Tekwani
The document describes the various phases of compilation:
1. Lexical analysis scans the source code and groups characters into tokens.
2. Syntax analysis checks syntax and constructs parse trees.
3. Semantic analysis generates intermediate code, checks for semantic errors using symbol tables, and enforces type checking.
4. Optional optimization improves programs by making them more efficient.
The document discusses developing integrated marketing communication message strategies. It states that all brand messages should create awareness, change or reinforce attitudes, stimulate a response or action, and build brand relationships. It also discusses developing creative briefs to guide message creation, including restating marketing objectives and the intended message impact. Finally, it emphasizes the importance of consistency across all communication channels to build a clear brand image.
Burger King is proposing a digital campaign to increase brand awareness, drive trial, and boost store traffic in Vietnam. The proposal includes the following key elements:
[1] A "Eat Like a King" photo contest on social media where fans can take photos enjoying Burger King in different ways and win weekly free burgers.
[2] A viral video clip promoting the contest and emphasizing that enjoying Burger King can be done in any way.
[3] Integrated online and offline activities such as contests, promotions, and a loyalty program to further engage customers and link online efforts to in-store sales.
The campaign aims to position Burger King as offering an American standard bur
Starbucks aims to promote its healthy food and drink options to reach a new demographic of healthy eaters. The proposed digital marketing strategy has three components: social media marketing on platforms like Facebook and Twitter, internet marketing through Google AdWords and Facebook ads, and a mobile app and text message program. The year-long campaign aims to position Starbucks as a healthy establishment and will measure success through engagement metrics and coupon redemption rates with a total budget of $1,775,000.
This document summarizes the motivations and challenges of compiling heterogeneous models. It discusses bringing together system, software, and control engineering disciplines by defining a common intermediate language. This presents challenges including achieving semantic convergence between different domain-specific modeling languages and verifying integration while ensuring properties are maintained from models to generated code. Flexible and open qualification is also a challenge to enable incremental re-qualification and support for new inputs and code generation strategies.
CxSuite is a source code analysis solution that allows organizations to identify, track, and fix security flaws in source code. It provides flexibility in supporting various programming languages, platforms, and vulnerability categories. CxSuite integrates into the software development lifecycle to help organizations address the challenge of securing code while reducing time and costs. It uses a virtual compiler to scan unbuilt code and pinpoints vulnerabilities without requiring a real compiler.
Safe and Reliable Embedded Linux Programming: How to Get ThereAdaCore
The talk provides an overview of techniques to design and implement reliable embedded applications. The goal is to achieve safe and analyzable behavior by construction, including handling parallel multiprocessor systems in an efficient and predictable way. The means to attain this objective is to statically configure the application to run on embedded linux platforms, and then to use run-time support to enforce constraints imposed to the system.
This document proposes extending aspect-oriented programming (AOP) principles to describe network security patterns. It introduces AOP concepts and discusses how security is a cross-cutting concern well-suited for AOP. The document then outlines requirements for a join point language to define patterns across multiple networked systems. Finally, it provides examples of network security patterns and discusses future work in developing a practical pointcut definition language and applying it to real code.
How to Create Your Own Product-Modeling EnvironmentTim Geisler
This document discusses how to create a product modeling environment using domain-specific languages (DSLs) and Eclipse tools. It describes using DSLs to model products tailored to a company's needs, with an Eclipse-based IDE for editing. It provides examples of DSLs used at Nokia Siemens Networks for product modeling and integration with SAP, and discusses the various components involved in creating a customized product modeling environment, including the DSL grammar/metamodel, validation, code generation, and integration with other systems.
The document summarizes IBM's Rational Software Conference 2009. It discusses challenges in embedded software development like requirements shifts, low memory footprints, and debugging difficulties. It introduces IBM Rational Test RealTime as a solution that allows automated component testing at all levels from simple functions to distributed systems. It also enables runtime analysis through profiling, tracing, and linking of code, tests, and models. The tool aims to help developers test throughout development rather than just debugging later, to catch issues early and ensure quality and stability of embedded software projects.
Trends in Embedded Software EngineeringAditya Kamble
This document summarizes trends in embedded software engineering, including moving from traditional coding to model-driven engineering and domain-specific development. It also discusses quality assurance techniques for safety-critical systems, such as static and formal verification as well as dynamic testing. Model-based approaches like fault tree analysis and measurement-based reliability growth models are presented for safety and reliability analysis. Overall, the document outlines challenges in developing complex embedded systems and the need for continued advances in systematic engineering technologies.
This document discusses IBM Rational Rhapsody, a model-driven development tool for complex systems and software. It provides capabilities for specifying, designing, developing, validating, and verifying systems using modeling and simulation. The document outlines Rhapsody's key features and benefits, including building quality applications through collaboration and eliminating defects through continual testing. It also describes Rhapsody's model execution, requirements visualization, and team collaboration technologies. Several usage scenarios are presented, such as visualizing legacy code, transitioning to model-driven development, and integrating external code.
This document provides an introduction to model driven engineering and software models. It discusses how models provide an abstract representation of a system that can be used to investigate and verify properties before production. The document then covers the history of software models and milestones like the Object Management Group adopting standards like the Unified Modeling Language (UML) and Model Driven Architecture (MDA). It defines key concepts in model driven engineering like platform independent models and platform specific models. Finally, it discusses how models are specified using meta-models and transformations between models.
Software Factories in the Real World: How an IBM® WebSphere® Integration Fact...Prolifics
“Getting any software development team to effectively scale to meet the needs of a large integration project is actually harder than it sounds. For a large Automotive Retailer based in Florida, this is exactly what they needed to do. They needed a large amount of integration to be built between their brand new Point of Sales system and their new SAP back-end. In this session, you will hear about how tools such as Rational Software Architect and WebSphere Message Broker Toolkit were integrated with a Rational Team Concert-based development environment to set up super efficient software factory employing techniques such as Model-Driven Development and Continuous Integration to help this retailer keep their customers’ wheels on the road.”
.NET Fundamentals and Business Application Development명신 김
- The document discusses .NET and its key components including the Common Language Runtime (CLR) which provides a virtual execution system, common type system, and development environment.
- It also summarizes the key features of C# versions 1-5 including generics, lambda expressions, extension methods, and dynamic binding.
- Finally, it discusses Microsoft Azure and how it supports existing .NET applications and development while enabling mobile and cloud-first scenarios.
Kavita Raghunathan has over 15 years of experience as a software engineer specializing in C, C++, C#, Java and other languages. She has extensive expertise in protocols, technology, complex systems problem solving and software development. She has worked on numerous projects involving optical and audio/video subsystems for the telecom industry. She is skilled in areas like software architecture, testing, product support and project management.
The document discusses topics in verification including reuse, coverage, regression engineering, planning, and qualification. It provides an overview of a voluntary community-based verification group called DVClub that discusses present day challenges in verification. The group has an advisory board of about 10 members from 6 companies. Topics discussed at meetings should relate to chip verification and may cover adjacent areas like design for verification, IT, and project management.
A classification framework for component modelsIvica Crnkovic
In the last decade a large number of different software component models have been developed, with different aims and using different principles and technologies. This has resulted in a number of models which have many similarities, but also principal differences, and in many cases unclear concepts. Component-based development has not succeeded in providing standard principles, as has, for example, object-oriented development. In order to increase the understanding of the concepts, and to differentiate component models more easily, this paper identifies, discusses and characterises fundamental principles of component models, and provides a Component Model Classification Framework based on these principles. Further, the paper classifies a large number of component models using this framework.
This document discusses how model-driven development (MDD) can help balance architectural integrity and rapid delivery for agile projects. MDD uses models to represent problem and solution knowledge, provide a common lexicon, and serve as the basis for conversations about system relationships. Models and transformations can automate implementation knowledge to continually increase development velocity. The document provides examples of how to structure models and transformations simply and integrate MDD into agile processes and continuous integration/delivery practices. Case studies demonstrate how MDD rescued a failed project and bootstrapped a new development team.
This document summarizes the GRC software CheckAud for Data Analysis. It provides an intuitive interface that allows users to easily construct analyses using drag and drop. Analyses can be saved as analysis trees and shared with colleagues. The software executes projects and displays results. It distinguishes itself from other analysis tools by requiring less user knowledge and training time, including audit security features like an audit log, and being portable. The software aims to make data analysis more effective and efficient for auditing.
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Project P
1. Model compiler for safety-critical systems
PROJECT
P
Model Compilers
for Safety-Critical Systems
Matteo Bordin
bordin@adacore.com
2. Model compiler for safety-critical systems
Industrial context
• A modern model-driven engineering process involves
– Multiple departments & cultures: system, control, software
– Multiple domain-specific languages (co-engineering)
• Need for
– Lightweight collaboration between departments
– Assurance when translating models to source code
– Model-based analysis taking into account multiple modeling view-
points (co-verification)
2
3. Model compiler for safety-critical systems
Introducing Project P
• Support the development of qualifiable model compilers
– Models are precise/refined enough for code generation
– From heterogeneous models (Simulink, UML, MARTE, …)
– Qualifiable in DO-178 sense (development tool, TQL1)
– Tunable with incremental certification support
– With verification of model-based integration
• Two R&D dimensions
Improvements over
– Model compilation state-of-the-art
– Agile/lean qualification process
3
4. Positioning the P toolset (DO-178C terminology)
• Conformity
Specification • Verifiability
Model • Accuracy & Consistency
• Compatibility
Design
Model
• Compliance
• Traceability
• Accuracy
• Consistency
• Compliance
Src Code
• Robustness
Executable
4
5. Model compiler for safety-critical systems
Introducing Project P (II)
User languages
Pivot formalism
An intermediate internal
representation
Code
Verification
Generation
5
6. Model compiler for safety-critical systems
Why a pivot formalism?
Clear semantics & execution model
No semantic variation point
User languages Minimal
No syntactic sugar
Covers multiple viewpoints
Pivot formalism (behavior, architecture, data, …)
An intermediate internal Separation of concerns
representation
Optimized code generation
Verification of consistency
Code (integration/allocation of
Verification heterogeneous models)
Generation
Support for scenario-based analysis
A reference representation for code generation & verification
6
7. Model compiler for safety-critical systems
Technical approach: model compilation
User languages
(safe subsets, for each viewpoint: behavior,
architecture, system, …)
Design model
(close to user languages abstraction) Two metamodels
At different levels of abstraction
… N refinement steps… To factorize representations
independently of target platform
Not visible to the final user
Code model
A set of intermediate refinement steps
(close to imperative programming languages)
Ada C VHDL
7
8. Model compiler for safety-critical systems
Defining the Design Model language
User languages MAKE CHOICES
• Identify safe language subsets
• Identify languages overlap
• Not the union of all languages (not the UML way)
State machines
Design model Data flow
Domain-independent component model
Verification MAKE CHOICES
Analysis theories/techniques • Identify relevant analysis methods
• Ensure the relevant information is present
Analysis tools • Tell how to represent it in user-visible languages
8
9. Model compiler for safety-critical systems
Defining the Code Model language
Datatypes
Design model • Ranges
(close to user languages abstraction) • Struct
Expressions
• Literals and constants
Code model • Math expressions (+, -, *, /, abs, …)
Statements
• VariableDeclaration
Ada C VHDL • AssignementStatement
• IfStatement
• WhileLoop
• Factorizes model compilation independent of target language
• Isolates location to insert target-specific transformations (OS calls)
• Simplifies development of the model compilation chain
9
10. Model compiler for safety-critical systems
Need for iterative refinement
Design model’
Design model’’
• (De)mangling
Design model’’’
• Constant folding/propagation
• Sequencing
...
• Type inference
• Flattening
Code model’
• …
Code model’’
...
10
11. Model compiler for safety-critical systems
Importers and the P formalism
Importers may work at any refinement level
This is to allow some refinement outside the framework:
• Sequencing produced by Simulink with slist/elist
• Normalization of UML activity diagrams (resolution of concurrency)
• ….
Design model’
Design model’’
Design model’’’
...
11
12. Model compiler for safety-critical systems
Importers and the P formalism (II)
Importers may even connect directly to the code model
Useful for action languages:
• (Embedded) Matlab
• Action Language for fUML (ALF)
• ….
Code model’
Code model’’
...
12
13. Model compiler for safety-critical systems
Technical approach: a generic framework
User languages
(safe subsets, for each viewpoint: behavior,
architecture, system, …)
Importers Resolution of semantic variation points
New input languages (DSLs)
Design model
(close to user languages abstraction)
Tuning/addition/removal of model
… N refinement steps…
transformation steps from a library
Code model
Tuning of code generation
(close to imperative programming languages)
Ada C VHDL
13
14. Model compiler for safety-critical systems
P model compiler instantiation
1. Identify safe subset of input language
2. Define a mapping to the P formalism
– Most likely at the design model level
3. Identify the set of transformations to apply
– Develop new transformation components
– Select and integrate existing ones
4. Package new qualification data with reused data
14
15. Model compiler for safety-critical systems
Instantiations of model compilation chain
Behavior Architecture
Design model
… N refinement steps… … N refinement steps…
Code model
Ada C VHDL
15
16. Model compiler for safety-critical systems
Behavioral modeling: GeneAuto
NEW
Subset of user languages
State machines
Design model
Data flow
… N refinement steps…
Code model Generation of sequential code
Ada C VHDL
16
17. Model compiler for safety-critical systems
Convergence of behavioral models
Formalism
17
18. Model compiler for safety-critical systems
Architectural modeling: CHESS & VERDE?
Subset of user languages
Design model Domain-independent
component model
… N refinement steps…
Generation of concurrent code
Code model Last compilation step may be too
company-dependent to be factorized
Ada C
18
19. Model compiler for safety-critical systems
Support for scenario-based analysis
• Real-time analysis is done on scenarios
– To limit pessimism (unlikely that ALL tasks are ready at the same
instant…)
– Scenarios stem from requirements
– Are they consistent/complete w.r.t the application model?
• The design model could help
– It covers multiple views: impact of behavior on scenario
identification
– Generation of analysis scenarii from the architecture by taking into
account the functional behavior
19
20. Model compiler for safety-critical systems
Agile/Lean qualification
• Final user needs to tune the model compiler
– Support new input languages (DSLs)
– Support new output languages
– Tune code generation strategy
• Definition of an integrated, generic process model
– Integrated: Development & Verification & Qualification
– Generic: usable for any instantiation of the model compilation chain
– Developer POV
– User POV
20
21. Model compiler for safety-critical systems
Agile/Lean qualification (II)
• Process models in EPF (Eclipse Process Framework)
– Tool Qualification Plan
– Tool Development Plan
• Deployment of an agile/lean process
– Short-term planning via Kanban charts
– Continuous integration including qualification-oriented activities
Structural coverage
Coding standard
Traceability/consistency of lifecycle artifacts
21
22. Model compiler for safety-critical systems
Agile/Lean qualification (III)
• Minimize re-qualification cost
– Transformations ship with qualification data
– Reuse of qualification evidence
– Iterative process taken into account on the qualification plans
22
23. Model compiler for safety-critical systems
Main contact points
• Matteo Bordin, bordin@adacore.com
• Marc Pantel, marc.pantel@enseeiht.fr
• www.open-do.org/projects/p
23
24. Model compiler for safety-critical systems
PROJECT
P
Model Compilers
for Safety-Critical Systems
Additional information
24
25. Model compiler for safety-critical systems
Project information
• Started in October 2011
• 3 years
• 10M budget, ~5M funding, FUI financing (France)
• 19 partners + observers
• Administrative leader: Continental Automotive
• Technical leader: AdaCore
• Scientific leader: IRIT
25
26. avioncis Industrial users
automotive space
Tech providers Academia
26