Systemanalyse og systemdesign

This book constitutes the proceedings of the 23rd International Conference on Parallel and Distributed Computing, Applications, and Technologies, PDCAT 2022, which took place in Sendai, Japan, during December 7-9, 2022.The 24 full papers and 16 short papers included in this volume were carefully reviewed and selected from 95 submissions. The papers are categorized into the following topical sub-headings: Heterogeneous System (1; HPC & AI; Embedded systems & Communication; Blockchain; Deep Learning; Quantum Computing & Programming Language; Best Papers; Heterogeneous System (2); Equivalence Checking & Model checking; Interconnect; Optimization (1); Optimization (2); Privacy; and Workflow.

A step-by-step guide to Istio Service Mesh implementation, with examples of complex and distributed workloads built using microservices architecture and deployed in KubernetesPurchase of the print or Kindle book includes a free PDF eBookKey Features:Learn the design, implementation, and troubleshooting of Istio in a clear and concise formatGrasp concepts, ideas, and solutions that can be readily applied in real work environmentsSee Istio in action through examples that cover Terraform, GitOps, AWS, Kubernetes, and GoBook Description:Istio is a game-changer in managing connectivity and operational efficiency of microservices, but implementing and using it in applications can be challenging. This book will help you overcome these challenges and gain insights into Istio's features and functionality layer by layer with the help of easy-to-follow examples. It will let you focus on implementing and deploying Istio on the cloud and in production environments instead of dealing with the complexity of demo apps. You'll learn the installation, architecture, and components of Istio Service Mesh, perform multi-cluster installation, and integrate legacy workloads deployed on virtual machines. As you advance, you'll understand how to secure microservices from threats, perform multi-cluster deployments on Kubernetes, use load balancing, monitor application traffic, implement service discovery and management, and much more. You'll also explore other Service Mesh technologies such as Linkerd, Consul, Kuma, and Gloo Mesh. In addition to observing and operating Istio using Kiali, Prometheus, Grafana and Jaeger, you'll perform zero-trust security and reliable communication between distributed applications.After reading this book, you'll be equipped with the practical knowledge and skills needed to use and operate Istio effectively.What You Will Learn:Get an overview of Service Mesh and the problems it solvesBecome well-versed with the fundamentals of Istio, its architecture, installation, and deploymentExtend the Istio data plane using WebAssembly (Wasm) and learn why Envoy is used as a data planeUnderstand how to use OPA Gatekeeper to automate Istio's best practicesManage communication between microservices using IstioExplore different ways to secure the communication between microservicesGet insights into traffic flow in the Service MeshLearn best practices to deploy and operate Istio in production environmentsWho this book is for:The book is for DevOps engineers, SREs, cloud and software developers, sysadmins, and architects who have been using microservices in Kubernetes-based environments. It addresses challenges in application networking during microservice communications. Working experience on Kubernetes, along with knowledge of DevOps, application networking, security, and programming languages like Golang, will assist with understanding the concepts covered.

Excel in site reliability engineering by learning from field-driven lessons on observability and reliability in code, architecture, process, systems management, costs, and people to minimize downtime and enhance developers' outputPurchase of the print or Kindle book includes a free eBook in the PDF formatKey Features:Understand the goals of an SRE in terms of reliability, efficiency, and constant improvementMaster highly resilient architecture in server, serverless, and containerized workloadsLearn the why and when of employing Kubernetes, GitHub, Prometheus, Grafana, Terraform, Python, Argo CD, and GitOpsBook Description:Site reliability engineering is all about continuous improvement, finding the balance between business and product demands while working within technological limitations to drive higher revenue. But quantifying and understanding reliability, handling resources, and meeting developer requirements can sometimes be overwhelming. With a focus on reliability from an infrastructure and coding perspective, Becoming a Rockstar SRE brings forth the site reliability engineer (SRE) persona using real-world examples.This book will acquaint you the role of an SRE, followed by the why and how of site reliability engineering. It walks you through the jobs of an SRE, from the automation of CI/CD pipelines and reducing toil to reliability best practices. You'll learn what creates bad code and how to circumvent it with reliable design and patterns. The book also guides you through interacting and negotiating with businesses and vendors on various technical matters and exploring observability, outages, and why and how to craft an excellent runbook. Finally, you'll learn how to elevate your site reliability engineering career, including certifications and interview tips and questions.By the end of this book, you'll be able to identify and measure reliability, reduce downtime, troubleshoot outages, and enhance productivity to become a true rockstar SRE!What You Will Learn:Get insights into the SRE role and its evolution, starting from Google's original visionUnderstand the key terms, such as golden signals, SLO, SLI, MTBF, MTTR, and MTTDOvercome the challenges in adopting site reliability engineeringEmploy reliable architecture and deployments with serverless, containerization, and release strategiesIdentify monitoring targets and determine observability strategyReduce toil and leverage root cause analysis to enhance efficiency and reliabilityRealize how business decisions can impact quality and reliabilityWho this book is for:This book is for IT professionals, including developers looking to advance into an SRE role, system administrators mastering technologies, and executives experiencing repeated downtime in their organizations. Anyone interested in bringing reliability and automation to their organization to drive down customer impact and revenue loss while increasing development throughput will find this book useful. A basic understanding of API and web architecture and some experience with cloud computing and services will assist with understanding the concepts covered.

This book constitutes the refereed post-conference proceedings of the Second International Conference on ICT for Health, Accessibility and Wellbeing, IHAW 2022, held in Larnaca, Cyprus, in December 2022. The revised 14 full papers and 3 short papers presented were carefully selected from 33 submissions. The papers are thematically arranged in the following sections: Visual Impairment and ICT for Mobility; ICT and Student Health; ICT and Wellbeing and ICT & Health prevention

This book constitutes the refereed and selected papers presented during the Third International Conference on Internet of Things, ICIoT 2022, held in Chennai, India, in April 2022. The 10 papers were thoroughly reviewed and selected from the 100 qualified submissions. They focus on application of IoT in the field of Computer Science and Information Technology as well as on Industrial IoT.

This book constitutes the refereed proceedings of the 19th International Conference on Economics of Grids, Clouds, Systems, and Services, GECON 2022, held in Izola, Slovenia, in September 2022. The 4 full papers presented in this book were carefully reviewed and selected from 22 submissions. In addition, this book includes 6 work-in-progress papers, 4 new ideas paper, and two invited papers. This series of conferences serves as a meeting place to bring together distributed systems expertise (e.g., in resource allocation, quality of service management, and energy consumption) with economics expertise (focusing on both micro- and macro-economic modelling and analysis) for creating effective solutions in this space.

This book constitutes the refereed proceedings of the 25th International Conference, ICISC 2022, held in Seoul, South Korea, during November 30¿December 2, 2022. The 24 full papers included in this book were carefully reviewed and selected from 69 submissions. They were organized in topical sections as follows: ¿Public Key Encryption with Hierarchical Authorized Keyword Search, Implicit Key-stretching Security of Encryption Schemes.

This book constitutes the refereed proceedings of the 14th International Workshop on Constructive Side-Channel Analysis and Secure Design, COSADE 2023, held in Munich, Germany, during April 3¿4, 2023. The 12 full papers included in this book were carefully reviewed and selected from 28 submissions. They were organized in topical sections as follows: fault-injection analyses and countermeasures; side-channel analyses and countermeasures; attacks on PQC and countermeasure; and analyses and tools.

This book, AICON 2022, constitutes the post-conference proceedings of the 4th EAI International Conference on Artificial Intelligence for Communications and Networks, AICON 2022, held in Hiroshima, Japan, in November 30- December 1, 2022. The 9 full papers and 4 short papers were carefully reviewed and selected from 36 submissions. The papers detail research in the areas of AI and communication systems related to intelligent systems and computational intelligence for communication and networks. They are organized in topical sections on AI and networks; machine learning; and evolutionary computation.

This book constitutes the proceedings of the 25th RoboCup International Symposium which was held online during July 2022 in Bangkok, Thailand.The 28 full papers included in these proceedings were carefully reviewed and selected from 40 submissions; the volume includes 12 papers from the winners of the RoboCup 2022 competitions under the Champions Track. The RoboCup International Symposium focuses on the science behind the advances in robotics, including the key innovations that led the winning teams to their success, and the outcomes of research inspired by challenges across the different leagues at RoboCup.

With industrial systems becoming ever more mechanized and reliant on advanced technology, the complexity of equipment, especially in risky industries is increasing on a daily basis. This title offers the knowledge required by safety professionals to provide and maintain the safety of engineering complex systems.

Life's context is uncertain environmental information, communication is its means, and genes are its tools. Evolution is its yield as continuous non-random self-referential cellular problem-solving.

This volume constitutes the revised selected papers from 4 workshops:Workshop on Adaptive Service-oriented and Cloud Applications (ASOCA 2022), 3rd International Workshop on AI-enabled Process Automation (AI-PA 2022), 3rd International Workshop on Architectures for Future Mobile Computing and Internet of Things (FMCIoT 2022), and 18th International Workshop on Engineering Service-Oriented Applications and Cloud Services (WESOACS 2022) held in conjunction with the 20th International Conference on Service-Oriented Computing, ICSOC 2022. The conference was held in Sevilla, Spain, in November/December 2022.

This book constitutes the refereed proceedings of the 9th EAI International Conference on IoT Technologies for HealthCare, HealthyIoT 2022, which was held in Braga, Portugal, in November 2022.The 11 full papers and 2 invited papers presented in this volume were carefully reviewed and selected from 37 submissions. The papers are organized in the following topical sections: Analysis of Measurement Data in IoT Technologies for Health; and IoT Applications in Research and Clinical Practice.

A Patterns Approach to Designing Distributed Systems and Solving Common Implementation Problems More and more enterprises today are dependent on cloud services from providers like AWS, Microsoft Azure, and GCP. They also use products, such as Kafka and Kubernetes, or databases, such as YugabyteDB, Cassandra, MongoDB, and Neo4j, that are distributed by nature. Because these distributed systems are inherently stateful systems, enterprise architects and developers need to be prepared for all the things that can and will go wrong when data is stored on multiple servers--from process crashes to network delays and unsynchronized clocks. Patterns of Distributed Systems describes a set of patterns that have been observed in mainstream open-source distributed systems. Studying the common problems and the solutions that are embodied by the patterns in this guide will give you a better understanding of how these systems work, as well as a solid foundation in distributed system design principles. Featuring real-world code examples from systems like Kafka and Kubernetes, these patterns and solutions will prepare you to confidently traverse open-source codebases and understand implementations you encounter "in the wild." Review the building blocks of consensus algorithms, like Paxos and Raft, for ensuring replica consistency in distributed systems Understand the use of logical timestamps in databases, a fundamental concept for data versioning Explore commonly used partitioning schemes, with an in-depth look at intricacies of two-phase-commit protocol Analyze mechanisms used in implementing cluster coordination tasks, such as group membership, failure detection, and enabling robust cluster coordination Learn techniques for establishing effective network communication between cluster nodes. Along with enterprise architects and data architects, software developers working with cloud services such as Amazon S3, Amazon EKS, and Azure CosmosDB or GCP Cloud Spanner will find this set of patterns to be indispensable. Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

This book focuses on conducting a comprehensive analysis of blockchain scalability serving large-scale application scenarios, from the ¿what, why, how¿ three perspectives, layer by layer. Gathering the latest state-of-the-art research advances in the area of key issues and technologies for blockchain scalability, it also presents some special and exciting insights on the existing and future blockchain scalability.Despite blockchain¿s merits of decentralization, immutability, non-repudiation, and traceability, the current blockchain has faced a serious scalability bottleneck. The scalability bottleneck problem is mainly manifested in two aspects: low-performance efficiency and difficulty in functional extension. First, the security and reliability of the blockchain system come from the fact that most nodes of the whole network participate in a distributed consensus to maintain the ledger. The high-cost consensus mechanism makes limited performance of blockchain, and there isa big gap between the actual large-scale application system. In addition, in order to ensure the security of a single blockchain system, data between different blockchain systems are relatively isolated, making it difficult for assets and data to interact.This book explores the scalability of blockchain in depth, proposes meaningful approaches to the problems mentioned above, and builds an original theoretical system of blockchain scalability. It describes the root of blockchain scalability problems, mainstream blockchain performance, the classification of existing scalability problem solutions, and some exciting sharding-based approaches. It also includes open issues and future directions to scale blockchain for complex practical application scenarios. As such, this book will be a valuable resource for students, researchers, engineers, and policymakers working in various areas related to blockchain scalability, which is also of great significance for understanding and solving the bottleneck of blockchain scalability and realizing the practical large-scale commercial application of blockchain.

Edited in collaboration with FoLLI, the Association of Logic, Language and Information, this book constitutes the refereed proceedings of the Third Tsinghua Interdisciplinary Workshop on Logic, Language, and Meaning, TLLM 2022, which was held virtually in April 2022.The 9 full papers presented in this volume were carefully reviewed and selected from 13 submissions. The workshop covers a wide range of topics such as dynamic semantics, logical dynamics, Dynamic Epistemic Logic, Discourse Representation Theory, formal semantics, free choice inference, update semantics, and donkey sentences.

This open access book constitutes selected papers presented during the 30th Irish Conference on Artificial Intelligence and Cognitive Science, held in Munster, Ireland, in December 2022. The 41 presented papers were thoroughly reviewed and selected from the 102 submissions. They are organized in topical sections on ¿machine learning, deep learning and applications; responsible and trustworthy artificial intelligence; natural language processing and recommender systems; knowledge representation, reasoning, optimisation and intelligent applications.

Edited in collaboration with FoLLI, this book constitutes the refereed proceedings of the 10th Indian Conference on Logic and Its Applications, ICLA 2023, which was held in Indore, India, in March 2023.Besides 6 invited papers presented in this volume, there are 9 contributed full papers which were carefully reviewed and selected from 18 submissions. The volume covers a wide range of topics. These topics are related to modal and temporal logics, intuitionistic connexive and imperative logics, systems for reasoning with vagueness and rough concepts, topological quasi-Boolean logic and quasi-Boolean based rough set models, and first-order definability of path functions of graphs.

This volume constitutes the revised selected papers from the four workshops collocated with the 20th International Conference on Software Engineering and Formal Methods, SEFM 2022, held in Berlin, Germany, in September 2022. The 19 full papers presented together with 9 short papers in this volume were carefully reviewed and selected from a total of 39 submissions. The contributions that are collected in this volume have been selected from the presentations at the following workshops: AI4EA 2022: First Berlin Workshop on Artificial Intelligence for Engineering Applications; F-IDE 2022: 7th Workshop on Formal Integrated Development Environment; CoSim-CPS 2022: 6th Workshop on Formal Co-Simulation of Cyber-Physical Systems; CIFMA 2022: 4th International Workshop on Cognition: Interdisciplinary Foundations, Models and Applications.

This book provides a comprehensive reference in large data center networking. It first summarizes the developing trend of DCNs, and reports four novel DCNs, including a switch-centric DCN, a modular DCN, a wireless DCN, and a hybrid DCN. Furthermore another important factor in DCN targets at managing and optimizing the network activity at the level of transfers to aggregate correlated data flows and thus directly to lower down the network traffic resulting from such data transfers. In particular, the book reports the in-network aggregation of incast transfer, shuffle transfer, uncertain incast transfer, and the cooperative scheduling of uncertain multicast transfer.

Use GitLab CI/CD pipelines for automating and deploying different steps of your software development lifecycle using best practices and troubleshooting methods.Key FeaturesReap the power of GitLab CI/CD pipelines at every stage of your software development lifecycleLearn how GitLab makes Git easier to use and more powerful when committing and reviewing codeCement your understanding using hands-on tutorials and extensive self-assessment exercisesPurchase of the print or Kindle book includes a free eBook in the PDF formatBook DescriptionDevelopers and release engineers understand the high stakes involved in building, packaging, and deploying code correctly. Ensuring that your code is functionally correct, fast, and secure is a time-consuming and complex task. Code implementation, development, and deployment can be conducted efficiently using GitLab CI/CD pipelines.Automating DevOps with GitLab CI/CD Pipelines begins with the basics of Git and GitLab, showing how to commit and review code. You'll learn to set up GitLab Runners for executing and autoscaling CI/CD pipelines and creating and configuring pipelines for many software development lifecycle steps. You'll also discover where to find pipeline results in GitLab, and how to interpret those results. Through the course of the book, you'll become well-equipped with deploying code to different environments, advancing CI/CD pipeline features such as connecting GitLab to a Kubernetes cluster and using GitLab with Terraform, triggering pipelines and improving pipeline performance and using best practices and troubleshooting tips for uncooperative pipelines. In-text examples, use cases, and self-assessments will reinforce the important CI/CD, GitLab, and Git concepts, and help you prepare for interviews and certification exams related to GitLab.By the end of this book, you'll be able to use GitLab to build CI/CD pipelines that automate all the DevOps steps needed to build and deploy high-quality, secure code.What you will learnGain insights into the essentials of Git, GitLab, and DevOpsUnderstand how to create, view, and run GitLab CI/CD pipelinesExplore how to verify, secure, and deploy code with GitLab CI/CD pipelinesConfigure and use GitLab Runners to execute CI/CD pipelinesExplore advanced GitLab CI/CD pipeline features like DAGs and conditional logicFollow best practices and troubleshooting methods of GitLab CI/CD pipelinesImplement end-to-end software development lifecycle workflows using examplesWho this book is forThis book is for DevOps/DevSecOps engineers, application developers, release engineers, quality assurance engineers, security engineers, SREs, and sysadmins looking to implement fast, secure and automated software development lifecycle tasks using continuous integration and continuous delivery (CI/CD) pipelines in GitLab. Basic knowledge of major stages of the software development life cycle and DevOps processes will be helpful.Table of ContentsExploring the Life Before DevOpsPracticing Basic Git CommandsUnderstanding GitLab ComponentsUnderstanding GitLab CI/CD Pipeline StructureInstalling and Configuring GitLab RunnersVerifying Your CodeSecuring Your CodePackaging and Deploying Your CodeEnhancing Speed and Maintainability of CI/CD PipelinesExtending the Reach of CI/CD PipelinesEnd-to-End ExampleTroubleshooting and Moving Ahead with GitLabAppendix: Self-Assessment Questions and Answers

This book constitutes the proceedings of the 37th International Conference, IVCNZ 2022, which took place in Auckland, New Zealand, in November 2022.The 37 papers (14 accepted for long oral presentation, 23 for short oral presentation) included in this volume were carefully reviewed and selected from 79 submissions. The conference presents papers on all aspects of computer vision, image processing, computer graphics, virtual and augmented reality, visualization, and HCI applications related to these fields.