The document discusses architecture-centric software development processes. It describes traditional waterfall and iterative development models, and notes that iterative models allow for more flexibility to changing requirements. Agile development methods like eXtreme Programming (XP) are discussed, which emphasize iterative development, collaboration, and rapid delivery of working software. Key practices of XP are outlined, including user stories, testing, pair programming, refactoring, and continuous integration. The role of architecture in agile processes is also addressed.
This presentation on Object-Oriented Application Frameworks is part of a larger course LINGI2252 on Software Maintenance and Evolution, given at UCL university in Belgium.
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.
Defining and Evaluating the Usability of CMS - Saurabh Kudesia STC India UX SIG
The document discusses defining and evaluating usability criteria for content management systems (CMS). It proposes that usability is a multidimensional concept that should be measured using multiple sub-constructs and factors. It presents different measurement models and evaluates the fit of these models based on covariance matrices and fit indices. The document concludes that usability scales are multidimensional and context dependent, and both content and architectural design must be considered when benchmarking CMS usability.
The document provides an overview of the Application Change Management Pack (ACP) for Oracle E-Business Suite. It outlines the key components of ACP, including Customization Manager, Patch Manager, and Setup Manager. Customization Manager allows custom files to be bundled into reusable packages. Patch Manager automates and centralizes the application of custom and Oracle patches to multiple instances simultaneously. Setup Manager facilitates the migration of configuration data across instances through reusable projects. The document also provides examples of how ACP can help manage customizations, patches, and setups more efficiently.
The document discusses software architecture and quality attributes. It defines software architecture as the structure of components in a system and their relationships. Quality attributes are non-functional requirements that cover aspects like performance, security, and maintainability. The document discusses how architectural decisions impact quality attributes and gives examples of quality attribute scenarios to define non-functional requirements precisely. Architectural patterns can help meet quality attribute requirements.
VisualAge Smallalk Web Services Experience ReportESUG
The document describes a service broker that acts as an intermediary between service providers and requesters. The service broker finds available services from providers and allows requesters to find services through the broker using a protocol like UDDI. This infrastructure separates service providers from requesters and allows for discovery of services.
The document discusses architecture-centric software development processes. It describes traditional waterfall and iterative development models, and notes that iterative models allow for more flexibility to changing requirements. Agile development methods like eXtreme Programming (XP) are discussed, which emphasize iterative development, collaboration, and rapid delivery of working software. Key practices of XP are outlined, including user stories, testing, pair programming, refactoring, and continuous integration. The role of architecture in agile processes is also addressed.
This presentation on Object-Oriented Application Frameworks is part of a larger course LINGI2252 on Software Maintenance and Evolution, given at UCL university in Belgium.
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.
Defining and Evaluating the Usability of CMS - Saurabh Kudesia STC India UX SIG
The document discusses defining and evaluating usability criteria for content management systems (CMS). It proposes that usability is a multidimensional concept that should be measured using multiple sub-constructs and factors. It presents different measurement models and evaluates the fit of these models based on covariance matrices and fit indices. The document concludes that usability scales are multidimensional and context dependent, and both content and architectural design must be considered when benchmarking CMS usability.
The document provides an overview of the Application Change Management Pack (ACP) for Oracle E-Business Suite. It outlines the key components of ACP, including Customization Manager, Patch Manager, and Setup Manager. Customization Manager allows custom files to be bundled into reusable packages. Patch Manager automates and centralizes the application of custom and Oracle patches to multiple instances simultaneously. Setup Manager facilitates the migration of configuration data across instances through reusable projects. The document also provides examples of how ACP can help manage customizations, patches, and setups more efficiently.
The document discusses software architecture and quality attributes. It defines software architecture as the structure of components in a system and their relationships. Quality attributes are non-functional requirements that cover aspects like performance, security, and maintainability. The document discusses how architectural decisions impact quality attributes and gives examples of quality attribute scenarios to define non-functional requirements precisely. Architectural patterns can help meet quality attribute requirements.
VisualAge Smallalk Web Services Experience ReportESUG
The document describes a service broker that acts as an intermediary between service providers and requesters. The service broker finds available services from providers and allows requesters to find services through the broker using a protocol like UDDI. This infrastructure separates service providers from requesters and allows for discovery of services.
Slego is a Squeak implementation that allows behaviors defined using Morphs in Squeak to be compiled and run on Lego Mindstorms robots. It provides an environment for defining morph behaviors, a compiler that translates the high level behaviors into primitive instructions for the Lego robot, and serial port communication to download programs and control the robot. The system currently supports programs to control cars with two independent wheels. Future work includes adding support for more sensors, improving accuracy, and extending Slego to additional robot platforms.
The document describes a test server tool that coordinates automated testing across developers. The test server tracks test case results, code versions, and test case status. Developers can run tests from a client that reports results to the server. The server flags tests that are not up to date and allows developers to check out test suites for repair. It also facilitates parallel test execution across multiple clients. The tool currently supports Smalltalk test frameworks and the presenters are working on new implementations and additional features.
The document describes a tool called Torch that was created to help integrators and developers understand changes being made to codebases. Torch is a visualization tool that provides an overview of changes using structural and symbolic information extracted from code. It displays packages, classes, traits, methods and their relationships. Torch offers different views of changes, such as package-centric or class-centric views, and allows filtering and summarizing changes. The goal is to aid understanding of changes and support the integration process.
The document announces an awards competition hosted by ESUG in 2009 to encourage innovation and development of Smalltalk software. The goal is to advertise Smalltalk and related VM software by releasing and making publicly available Smalltalk code submissions. Any Smalltalk code is eligible for the awards, including free, commercial, academic, or other types of code. Winners will be determined based on number of submissions by country, dialect, and whether from academia or companies. Prizes totaling 1000 Euros will be awarded to the top submissions, with 500, 300, and 200 Euros for first, second, and third place respectively.
The document discusses five different client-server architectures for inter-operable Smalltalk and Java systems. Architecture V is identified as having advantages like using CORBA for inter-process communication, an asynchronous thin Java client, content generation on the server, and using HTTP instead of IIOP for data transfer. Server Smalltalk is highlighted as a viable option due to its productivity benefits, robust class libraries, and ability to interoperate with other languages.
Automatic Strategies for Decision Support in TriageTelephone ESUG
This document describes an automated framework for decision support in telephone triage. It presents ExpertCare, a software application that simulates telephone triages by gathering initial data, asking questions, and providing presumptive diagnoses. The framework represents medical concepts and sessions logically and tests different question-asking strategies through simulation. The best-performing strategies are based on the notion of "support", which scores how well symptoms support potential diagnoses. These strategies achieved the project's goal of diagnosing patients in 3-6 questions on average. The framework was developed in Smalltalk, which facilitated knowledge representation, strategy testing, and refining approaches based on results. Future work could include integrating the framework with the real ExpertCare system and adapting it to other
How to Build Composite Applications with PRISMDataLeader.io
Created by Emil Stoychev (The Silverlight Show) from Bulgaria at my Microsoft "Pre-MIX!!" ROCK! event.
Topics covered include design & technical concepts in PRISM, composite apps vs. monolithic apps, prism is a set of guidelines not a framework.
Technical Concepts:
1. Bootstrapper is responsible for app initialization
2. CAL includes UnityBootstrapper
3. XAML
4. Configure RegionAdapter Mappings
5. Creating the Shell
6. Initializing Modules
7. Windows Presentation Foundation (WPF)
8. Module Options
1. Design Concepts: modularity, dependency injection container, multi-targeting
2. UI Composition: commanding, eventing
3. View Composition = View Injection = View Discovery
42windmills lets you build your own applications for the cloud. Even if you're no software developer!
Applications can be deployed to the cloud (Windows Azure) with a mouse click. Developers can add business logic easily because of the integration with Microsoft Visual Studio.
Visit www.42windmills.com and create your account for free.
10 - Architetture Software - More architectural stylesMajong DevJfu
The Microkernel pattern partitions an operating system into isolated, minimal components that communicate through a small, fixed message-passing interface, allowing components to be developed and upgraded independently while maintaining overall system stability and security.
The document summarizes several design patterns including creational, structural, and behavioral patterns. Creational patterns like abstract factory, builder, and factory method deal with object instantiation. Structural patterns like adapter, bridge, composite deal with class and object composition. Behavioral patterns like chain of responsibility, command, and observer deal with object communication and can be used to implement things like menus, toolbars, and event handling. Many of these patterns are used throughout the .NET framework in various class libraries.
The document discusses developing a successful Selenium automation program by overcoming impediments such as unrealistic objectives and high startup costs, addressing challenges like managing object references and coding standards, and implementing solutions like a centralized object repository and using design patterns to develop maintainable test scripts. It also covers the need for robust reporting and metrics to measure the effectiveness of the automation program.
The document discusses software reuse and design for reuse. It covers the benefits of reuse including increased dependability and accelerated development. It also discusses potential problems like increased maintenance costs. The document then covers four layers of reuse - system, architecture, design, and implementation. It provides examples and approaches to support reuse at each level, including design patterns, object orientation principles, and component-based development.
Design patterns provide general reusable solutions to common problems in software design. They help structure code and define the way components interact. Some key design patterns discussed in the document include Singleton, Strategy, Decorator, and State. The Singleton pattern ensures a class only has one instance, Strategy encapsulates algorithms to allow flexible changes, Decorator adds functionality dynamically at runtime, and State changes object behavior based on its internal state. Design patterns improve code organization, reuse, and maintenance.
Coded UI - Test automation Practices from the FieldClemens Reijnen
CodedUI tests within Visual Studio makes it easy for developers together with tester to create, fully-automated, functional user interface tests. These tests alert the team in an, easy to execute, automated way about regressions. CodedUI tests are easy to create for different UI technologies. But, all kinds of test automation needs an investment. To get a good return on this test automation investment you need to create CodedUI tests in a robust manner which can sustain changes to your application over time.
In this session you will see how maintainable CodedUI tests can be created and how the test infrastructure needs to be configured for efficient execution.
The document discusses various design principles and patterns in Java including the Singleton, Factory Method, Prototype, and Abstract Factory patterns. It provides examples of when and how to apply each pattern, describing their structures, participants, collaborations and consequences. It also covers design principles such as the open-closed principle, dependency inversion, and interface segregation.
Lecture two,
An introduction to Design Pattern
History
Pattern Language,
Categorization according to GoF
MVC
Creational Design Patterm
Factory Method
Abstract Factory
Singleton
Builder
The presentation outlines a methodology of queuing model-based load testing of large (with thousands users) enterprise applications deployed on premise and in the Cloud
The document provides an overview of the GoF design patterns including the types (creational, structural, behavioral), examples of common patterns like factory, abstract factory, singleton, adapter, facade, iterator, observer, and strategy, and UML diagrams illustrating how the patterns can be implemented. Key aspects of each pattern like intent, relationships, pros and cons are discussed at a high level. The document is intended to introduce software engineers to design patterns and how they can be applied.
The Model-View-ViewModel pattern was introduced for Windows Presentation Foundation applications (WPF) and later exploded in popularity with the introduction of various frameworks to support development on additional platforms including Silverlight and Windows Phone. The release of KnockoutJS the pattern has extended MVVM to the web and exposed it to the JavaScript stack, while the new Windows 8 Metro platform embraces the same XAML and C#-based technologies that WPF and Silverlight pioneered. In this talk, Jeremy Likness takes a deep dive into the history of the pattern, describes its benefits, and discusses how it relates to modern application development. Is it a bad fit for web applications? Does it belong in the Metro space? Learn the benefits and trade-offs to help decide if this pattern makes sense in your projects moving forward.
Александр Белецкий "Архитектура Javascript приложений"Agile Base Camp
This document discusses large scale JavaScript applications and common patterns used to build them. It begins by introducing Addy Osmani and his work on JavaScript frameworks. It then covers the evolution of JavaScript apps from early uses to modern complex single page apps. Key points are made about the complexity of front-end development. The document dives into architectural patterns like namespaces, modules, facades, mediators, and observers to handle complexity. It provides examples of implementing these patterns with RequireJS and AMD for module loading. Finally, it proposes an overall application architecture bringing these concepts together and recommends further resources on the topic.
Slego is a Squeak implementation that allows behaviors defined using Morphs in Squeak to be compiled and run on Lego Mindstorms robots. It provides an environment for defining morph behaviors, a compiler that translates the high level behaviors into primitive instructions for the Lego robot, and serial port communication to download programs and control the robot. The system currently supports programs to control cars with two independent wheels. Future work includes adding support for more sensors, improving accuracy, and extending Slego to additional robot platforms.
The document describes a test server tool that coordinates automated testing across developers. The test server tracks test case results, code versions, and test case status. Developers can run tests from a client that reports results to the server. The server flags tests that are not up to date and allows developers to check out test suites for repair. It also facilitates parallel test execution across multiple clients. The tool currently supports Smalltalk test frameworks and the presenters are working on new implementations and additional features.
The document describes a tool called Torch that was created to help integrators and developers understand changes being made to codebases. Torch is a visualization tool that provides an overview of changes using structural and symbolic information extracted from code. It displays packages, classes, traits, methods and their relationships. Torch offers different views of changes, such as package-centric or class-centric views, and allows filtering and summarizing changes. The goal is to aid understanding of changes and support the integration process.
The document announces an awards competition hosted by ESUG in 2009 to encourage innovation and development of Smalltalk software. The goal is to advertise Smalltalk and related VM software by releasing and making publicly available Smalltalk code submissions. Any Smalltalk code is eligible for the awards, including free, commercial, academic, or other types of code. Winners will be determined based on number of submissions by country, dialect, and whether from academia or companies. Prizes totaling 1000 Euros will be awarded to the top submissions, with 500, 300, and 200 Euros for first, second, and third place respectively.
The document discusses five different client-server architectures for inter-operable Smalltalk and Java systems. Architecture V is identified as having advantages like using CORBA for inter-process communication, an asynchronous thin Java client, content generation on the server, and using HTTP instead of IIOP for data transfer. Server Smalltalk is highlighted as a viable option due to its productivity benefits, robust class libraries, and ability to interoperate with other languages.
Automatic Strategies for Decision Support in TriageTelephone ESUG
This document describes an automated framework for decision support in telephone triage. It presents ExpertCare, a software application that simulates telephone triages by gathering initial data, asking questions, and providing presumptive diagnoses. The framework represents medical concepts and sessions logically and tests different question-asking strategies through simulation. The best-performing strategies are based on the notion of "support", which scores how well symptoms support potential diagnoses. These strategies achieved the project's goal of diagnosing patients in 3-6 questions on average. The framework was developed in Smalltalk, which facilitated knowledge representation, strategy testing, and refining approaches based on results. Future work could include integrating the framework with the real ExpertCare system and adapting it to other
How to Build Composite Applications with PRISMDataLeader.io
Created by Emil Stoychev (The Silverlight Show) from Bulgaria at my Microsoft "Pre-MIX!!" ROCK! event.
Topics covered include design & technical concepts in PRISM, composite apps vs. monolithic apps, prism is a set of guidelines not a framework.
Technical Concepts:
1. Bootstrapper is responsible for app initialization
2. CAL includes UnityBootstrapper
3. XAML
4. Configure RegionAdapter Mappings
5. Creating the Shell
6. Initializing Modules
7. Windows Presentation Foundation (WPF)
8. Module Options
1. Design Concepts: modularity, dependency injection container, multi-targeting
2. UI Composition: commanding, eventing
3. View Composition = View Injection = View Discovery
42windmills lets you build your own applications for the cloud. Even if you're no software developer!
Applications can be deployed to the cloud (Windows Azure) with a mouse click. Developers can add business logic easily because of the integration with Microsoft Visual Studio.
Visit www.42windmills.com and create your account for free.
10 - Architetture Software - More architectural stylesMajong DevJfu
The Microkernel pattern partitions an operating system into isolated, minimal components that communicate through a small, fixed message-passing interface, allowing components to be developed and upgraded independently while maintaining overall system stability and security.
The document summarizes several design patterns including creational, structural, and behavioral patterns. Creational patterns like abstract factory, builder, and factory method deal with object instantiation. Structural patterns like adapter, bridge, composite deal with class and object composition. Behavioral patterns like chain of responsibility, command, and observer deal with object communication and can be used to implement things like menus, toolbars, and event handling. Many of these patterns are used throughout the .NET framework in various class libraries.
The document discusses developing a successful Selenium automation program by overcoming impediments such as unrealistic objectives and high startup costs, addressing challenges like managing object references and coding standards, and implementing solutions like a centralized object repository and using design patterns to develop maintainable test scripts. It also covers the need for robust reporting and metrics to measure the effectiveness of the automation program.
The document discusses software reuse and design for reuse. It covers the benefits of reuse including increased dependability and accelerated development. It also discusses potential problems like increased maintenance costs. The document then covers four layers of reuse - system, architecture, design, and implementation. It provides examples and approaches to support reuse at each level, including design patterns, object orientation principles, and component-based development.
Design patterns provide general reusable solutions to common problems in software design. They help structure code and define the way components interact. Some key design patterns discussed in the document include Singleton, Strategy, Decorator, and State. The Singleton pattern ensures a class only has one instance, Strategy encapsulates algorithms to allow flexible changes, Decorator adds functionality dynamically at runtime, and State changes object behavior based on its internal state. Design patterns improve code organization, reuse, and maintenance.
Coded UI - Test automation Practices from the FieldClemens Reijnen
CodedUI tests within Visual Studio makes it easy for developers together with tester to create, fully-automated, functional user interface tests. These tests alert the team in an, easy to execute, automated way about regressions. CodedUI tests are easy to create for different UI technologies. But, all kinds of test automation needs an investment. To get a good return on this test automation investment you need to create CodedUI tests in a robust manner which can sustain changes to your application over time.
In this session you will see how maintainable CodedUI tests can be created and how the test infrastructure needs to be configured for efficient execution.
The document discusses various design principles and patterns in Java including the Singleton, Factory Method, Prototype, and Abstract Factory patterns. It provides examples of when and how to apply each pattern, describing their structures, participants, collaborations and consequences. It also covers design principles such as the open-closed principle, dependency inversion, and interface segregation.
Lecture two,
An introduction to Design Pattern
History
Pattern Language,
Categorization according to GoF
MVC
Creational Design Patterm
Factory Method
Abstract Factory
Singleton
Builder
The presentation outlines a methodology of queuing model-based load testing of large (with thousands users) enterprise applications deployed on premise and in the Cloud
The document provides an overview of the GoF design patterns including the types (creational, structural, behavioral), examples of common patterns like factory, abstract factory, singleton, adapter, facade, iterator, observer, and strategy, and UML diagrams illustrating how the patterns can be implemented. Key aspects of each pattern like intent, relationships, pros and cons are discussed at a high level. The document is intended to introduce software engineers to design patterns and how they can be applied.
The Model-View-ViewModel pattern was introduced for Windows Presentation Foundation applications (WPF) and later exploded in popularity with the introduction of various frameworks to support development on additional platforms including Silverlight and Windows Phone. The release of KnockoutJS the pattern has extended MVVM to the web and exposed it to the JavaScript stack, while the new Windows 8 Metro platform embraces the same XAML and C#-based technologies that WPF and Silverlight pioneered. In this talk, Jeremy Likness takes a deep dive into the history of the pattern, describes its benefits, and discusses how it relates to modern application development. Is it a bad fit for web applications? Does it belong in the Metro space? Learn the benefits and trade-offs to help decide if this pattern makes sense in your projects moving forward.
Александр Белецкий "Архитектура Javascript приложений"Agile Base Camp
This document discusses large scale JavaScript applications and common patterns used to build them. It begins by introducing Addy Osmani and his work on JavaScript frameworks. It then covers the evolution of JavaScript apps from early uses to modern complex single page apps. Key points are made about the complexity of front-end development. The document dives into architectural patterns like namespaces, modules, facades, mediators, and observers to handle complexity. It provides examples of implementing these patterns with RequireJS and AMD for module loading. Finally, it proposes an overall application architecture bringing these concepts together and recommends further resources on the topic.
This document discusses requirements modeling in software engineering. It covers creating various models during requirements analysis, including scenario-based models, data models, class-oriented models, flow-oriented models, and behavioral models. These models form the requirements model, which is the first technical representation of a system. The document provides examples of writing use cases and constructing a preliminary use case diagram for a home security system called SafeHome. It emphasizes that requirements modeling lays the foundation for software specification and design.
This document discusses various JavaScript design patterns. It begins by defining design patterns as recurring solutions to common software design problems. It then covers types of patterns such as creational, structural, and behavioral. Specific patterns like module, revealing module, singleton, prototype, factory, facade, and observer are demonstrated. Benefits include reusability, communication, and encapsulation. Drawbacks include additional complexity and difficulty testing in some cases. Examples are provided to illustrate usage of the patterns.
This document discusses Command Query Responsibility Segregation (CQRS), a pattern for building scalable, multi-user systems. CQRS separates commands and queries by using different models for updates and reads. This allows optimization of read and write operations independently to improve scalability. The document outlines common CQRS components like commands, events, and persistent view models, and provides guidelines for when to use CQRS, such as for large, distributed systems with complex business logic.
This document discusses design patterns and selecting appropriate patterns based on business requirements. It provides an overview of design patterns available in TheServerSide.com pattern catalog, which are organized into categories like EJB layer architectural patterns, inter-tier data transfer patterns, transaction and persistence patterns, and client-side EJB interaction patterns. Examples of patterns in each category are described. Best practices for developing class diagrams and using proven design patterns are also mentioned.
This document discusses strategies for scaling cloud services across the enterprise. It recommends adopting a cloud factory approach using DevOps processes to provide on-demand application development infrastructure. This enables cost-effective development, collaboration, and deployment while establishing best practices and process repeatability. Quick start use cases are proposed around DevOps tooling, automated governance, elastic scaling, and consumption-based pricing to demonstrate value. Key metrics include time to provision resources, scale frequency, and cost per user.
Workshop: Identifying concept inventories in agile programmingESUG
This document discusses the development of a concept inventory to identify common misconceptions in agile programming and object-oriented development. The project aims to strengthen collaboration between INRIA/Lille and ÉTS/UQAM by creating a concept inventory that can be used to improve teaching of agile development with object-oriented languages like TypeScript, JavaScript, and Pharo. The methodology involves identifying misconceptions, proposing a concept inventory, and validating it in courses by measuring understanding before and after instruction. A workshop will help identify initial misconceptions in Smalltalk/Pharo by capturing them in a collaborative tool.
This document proposes integrating documentation into the Pharo language metamodel and environment to improve documentation support. It suggests making documentation first-class citizens in Pharo by providing built-in support and a minimal API, which would allow tight integration with development tools and future extensions without requiring grammar changes or large efforts. This could improve documentation quality by enabling direct references between code and documentation and automatic logging of documentation usage.
The Pharo Debugger and Debugging tools: Advances and RoadmapESUG
This document outlines advances and the roadmap for debugging tools in Pharo. It discusses recent improvements to the debugging infrastructure, including architectural changes and new debugging commands. It also describes upcoming work, such as additional infrastructure improvements, an emergency debugger, support for meta-object protocols, a redesigned user experience, a remote debugger, and improved documentation. The document concludes by inviting participants to help evaluate new debugging experiments.
The document describes Sequence, a pipeline modeling and discrete event simulation framework developed in Pharo Smalltalk. Sequence allows describing system resources, building blocks that use those resources, assembling scenarios from blocks, collecting information during simulated runs, and interactively exploring system traces. The framework implements a discrete event simulation engine with event streams that model periodic processes and resources. Sequence provides tools for evaluating system performance through simulation before complete hardware is available.
Migration process from monolithic to micro frontend architecture in mobile ap...ESUG
This document discusses migrating a monolithic mobile application called CARL Touch to a micro frontend architecture. It presents a migration process involving three steps: 1) analysis of the monolithic codebase, 2) identification of potential micro frontends, and 3) transformation of the codebase to implement the identified micro frontends. Previous experiments at Berger-Levrault involving two teams migrating CARL Touch provided insights. The proposed process uses static and dynamic analysis, code visualization and clustering techniques to help identify optimal micro frontends and transform the codebase in a semi-automated manner.
Analyzing Dart Language with Pharo: Report and early resultsESUG
This document summarizes an analysis of the Dart programming language using tools in the Pharo environment. It describes generating a parser for Dart using SmaCC, which produces an AST. It also details defining a Famix meta-model for Dart and the Chartreuse-D importer that creates a FamixDart model from the AST. Future work is outlined, including improving SmaCCDart, continuing to develop the FamixDart meta-model, and handling dynamic types when importing associations. The goal is to analyze Dart and explore modeling Flutter applications.
Transpiling Pharo Classes to JS ECMAScript 5 versus ECMAScript 6ESUG
This document summarizes research on transpiling Pharo classes to JavaScript using ECMAScript 5 versus ECMAScript 6. It finds that transpiling to ES6 provides benefits like significantly faster load times, improved benchmark performance up to 43%, and more idiomatic code compared to ES5. However, fully emulating Smalltalk semantics like metaclass inheritance remains challenging when targeting JavaScript.
The document presents an approach for automated test generation from software models and execution traces. Key aspects of the approach include using metamodels to represent the codebase, values, and desired unit test structure. Models are built from the codebase and traces, then transformations are applied to generate unit tests conforming to the test metamodel. Abstract syntax trees are used to export the generated tests to code. The approach aims to generate tests that are relevant, readable and maintainable without relying on existing tests. An example demonstrates generating a JUnit test from an application class.
Genetic programming is used to generate unit tests by evolving test code via genetic algorithms to maximize coverage. Tests are represented as chromosomes of object and message statements. The genetic algorithm selects tests based on coverage, combines tests through crossover, and replaces tests in the population over generations to find optimal test sequences. Future work includes improving path exploration and comparing with other test generation tools.
Threaded-Execution and CPS Provide Smooth Switching Between Execution ModesESUG
Threaded execution and continuation-passing style (CPS) allow for smooth switching between execution modes in Zag Smalltalk. Threaded execution interprets code as a sequence of addresses like bytecode but is 2.3-4.7 times faster, while CPS passes continuations explicitly like in functional languages and is 3-5 times faster than bytecode. Both approaches allow fallback to debugging. The implementation shares context and stack between modes to easily switch with proper object structures.
Exploring GitHub Actions through EGAD: An Experience ReportESUG
This document summarizes an experience report on exploring GitHub Actions through EGAD, a tool for GitHub Action analysis. It discusses three key lessons learned: 1) Composing a story by documenting tasks and linking documentation to code, 2) Navigating custom views to conduct research, and 3) Supporting onboarding of researchers by assigning mentors, scheduling meetings, and encouraging use of resources. EGAD takes workflow YAML files, wraps them in a domain model to provide context, and allows inspecting examples to fully explore the GitHub Actions domain model.
Pharo: a reflective language A first systematic analysis of reflective APIsESUG
This document analyzes the reflective features and APIs in Pharo, a reflective programming language. It presents a catalog of Pharo's reflective APIs and analyzes how they relate to metaobjects. The analysis highlights areas for potential improvement, such as providing solutions for intercession on state reads/writes and addressing constraints when changing an object's class. The document contributes to understanding Pharo's reflective design and its evolution over time.
The document discusses garbage collector tuning for applications with pathological allocation patterns. It begins by explaining the motivation and issues caused by pathological patterns, such as applications taking over an hour and a half to run. It then provides an overview of garbage collection and how allocation patterns can impact performance. The document dives into two specific tuning techniques - increasing the full GC threshold to prevent premature full GCs from being triggered, and increasing the tenuring threshold to avoid large objects residing in the remembered set and slowing down scavenges. These tunings resulted in significant performance improvements for the sample DataFrame application, reducing the run time from over an hour and a half to around seven minutes.
Improving Performance Through Object Lifetime Profiling: the DataFrame CaseESUG
This document discusses improving garbage collection performance in Pharo through object lifetime profiling. It presents Illimani, a lifetime profiler developed for Pharo. Illimani was used to profile the lifetimes of objects created when loading a large DataFrame. The profiling revealed that most objects had short lifetimes, suggesting the garbage collector could be tuned. Tuning the garbage collector parameters based on the lifetime profiles improved the performance of loading the DataFrame.
This document discusses the past, present, and future of Pharo DataFrames. It began as a student project but has evolved into a mature project with dedicated engineers, improving performance and adding functionality. Future plans include further performance enhancements, adding more functionality, better integration with other Pharo projects, and support for big data. Evaluation of DataFrames is also planned.
This document discusses issues with thisContext in the Pharo debugger not correctly representing the execution context and being the DoIt context instead. This was fixed in Pharo12 by making thisContext a variable object that is wrapped in a DoItVariable, so the debugger context is used. When inspecting or doing DoIt, the doIt Variable is pushed and read to provide the proper execution context.
This document proposes using websockets to display fencing scores and a chronometer from an arena server to mobile phones over the internet in real-time. It includes links to video examples of a chronometer display and photos from fencing competitions.
ShowUs: PharoJS.org Develop in Pharo, Run on JavaScriptESUG
This document discusses PharoJS, which allows developers to develop applications in Pharo and then export them to run as JavaScript applications. PharoJS enables 100% of Pharo code to be executed during development, and then 100% of that same code is exported to JavaScript to be executed in production. The document also briefly mentions deployment options for exported PharoJS applications like GitHub Pages and GitHub Actions.
The document contains testimonials from participants of the Pharo MOOC praising its effectiveness at teaching object-oriented design. It also announces an upcoming advanced design MOOC that will have over 60 lectures, slides, videos and an exercise booklet. Finally, it provides links to the course websites and encourages people to stay tuned for the new MOOC.
A New Architecture Reconciling Refactorings and TransformationsESUG
This document discusses reconciling refactorings and transformations in software engineering. It proposes a new architecture where refactorings decorate transformations by checking preconditions and composing multiple transformations. Refactorings ensure transformations are applied safely while transformations focus on model changes. Open questions remain around precondition handling and composition semantics. The goals are to reduce duplication, support custom refactorings/transformations, and provide a modern driver-based user interface.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
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Things to Consider When Choosing a Website Developer for your Website | FODUUFODUU
Choosing the right website developer is crucial for your business. This article covers essential factors to consider, including experience, portfolio, technical skills, communication, pricing, reputation & reviews, cost and budget considerations and post-launch support. Make an informed decision to ensure your website meets your business goals.
Generating privacy-protected synthetic data using Secludy and MilvusZilliz
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Infrastructure Challenges in Scaling RAG with Custom AI modelsZilliz
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
AI-Powered Food Delivery Transforming App Development in Saudi Arabia.pdfTechgropse Pvt.Ltd.
In this blog post, we'll delve into the intersection of AI and app development in Saudi Arabia, focusing on the food delivery sector. We'll explore how AI is revolutionizing the way Saudi consumers order food, how restaurants manage their operations, and how delivery partners navigate the bustling streets of cities like Riyadh, Jeddah, and Dammam. Through real-world case studies, we'll showcase how leading Saudi food delivery apps are leveraging AI to redefine convenience, personalization, and efficiency.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
1. COAST
An Open Source Smalltalk Framework
to Build Synchronous Collaborative Applications
Jan Schümmer, Till Schümmer, Christian Schuckmann
GMD - IPSI, Darmstadt, Germany
intelligent views, Darmstadt, Germany
{jan.schuemmer|till.schuemmer}@gmd.de
christian.schuckmann@i-views.de
2. focus
Support the development of
• object oriented,
• synchronous,
• interactive, and
• complex
(e.g. hypermedia applications)
motivation
requirements
groupware.
application
structure
groupware
model
realization
usage
experiences
4. problem statement
Writing groupware is difficult.
It is different from single-user
application development.
• more than one user at a time (multiple I/O)
• provision of group awareness
• support of different collaboration modes
motivation
requirements It is error prone.
application • process synchronization
structure • data consistency
groupware • network (components) failure
model
realization
usage
experiences
5. support groupware developers
architecture
• reference architecture
• ready-to-use components
• e.g. server component
model
• class hierarchy serves as a template
for groupware applications
motivation
requirements implementation
application • do and hide as much of the ‘hard and
structure
dirty work‘ as possible
groupware • e.g. synchronisation of shared objects
model
realization
usage
experiences
6. requirements
groupware-specific requirements
• group awareness
• coupling control
• session management
• floor control
motivation
general requirements
requirements • ease of use => right level of
application abstraction
structure • consistency, uniform approach
groupware
model
• reusability
realization
usage
experiences
7. structure in single-user applications 1
divide functionality
motivation
requirements
application
structure
groupware
model
realization
usage
experiences
8. structure in single-user applications 2
increase reusability
View Controller
motivation ApplicationModel
Model
or
requirements ValueModel
application application logic
structure
groupware DomainModel
domain or
model business logic
realization
usage
experiences
9. from single-user to multi-user:
sharing the domain model
+ synchronized domain model
+ view/controller and
application model can
remain unchanged
- system is not collaboration
aware
motivation
requirements
application
structure
groupware
model
realization
usage
experiences
10. from single-user to multi-user:
sharing the application model
+ application state can be
motivation
accessed from each
requirements
application instance
application
structure + application state consistent
groupware with domain model state
model
realization
usage
experiences
11. from single-user to multi-user:
the user comes into play
motivation
requirements
application
structure
groupware
model
realization
usage
experiences
17. shared data management
shared objects are
bundled in clusters
COAST mediators
serve clusters to
COAST
Mediator
COAST clients
motivation
requirements
application
structure
groupware
model
realization COAST COAST
Client Client
usage
experiences
18. transactions
shared objects are modified in transactions
• prevent inconsistencies
• short transactions
• optimistic or pessimistic
• ACID properties
transaction processing
• local execution
motivation
• local commit
requirements
• send agenda to mediator
application
structure • global commit / reject
groupware • broadcast changes to synchronize replica
model
realization
usage
experiences
19. view updating
virtual slots
• cache computation results
• computation
• on demand (lazy)
• on invalidation (eager)
• automatic invalidation
• dependencies between model and
motivation
requirements
virtual slots are detected by the
application framework
structure
groupware views have virtual slots that trigger
model
redisplay
realization
usage
experiences
26. applications - games
Co-operative Puzzle
motivation
requirements
application
structure
groupware
model
realization
usage
experiences
27. applications - software dev.
TUKAN
... and the UML-Editor
motivation
requirements
application
structure
groupware
model
realization
usage
experiences
28. usage experiences 1
performance
• COAST-applications are as fast as
comparable single user applications
size of the shared object space
• up to now, a maximum of 30.000 was
reached
motivation
requirements
number of users
application • VITAL was tested with up to 12
structure simulanousley working users
groupware
model
realization
usage
experiences
29. usage experiences 2
network connection
• low bandwidth for synchronisation of replica
• initial effort for replication
• VITAL tested via 28.800 Bps modem
connection
• UML-editor tested between Germany and
Argentina
motivation
requirements development effort for COAST applications
application • learning effort for newbys
structure • experienced developers
groupware • one week for first version of UML editor
model • one weekend for the collaborative puzzle
realization
usage
experiences