19 results on '"Thomas Erl"'
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2. Cloud Computing : Concepts, Technology, Security, and Architecture
- Author
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Thomas Erl, Eric Barcelo Monroy, Thomas Erl, and Eric Barcelo Monroy
- Subjects
- Cloud computing
- Abstract
Cloud Computing: Concepts, Technology, Security & Architecture Cloud computing has become an integral and foundational part of information technology. The majority of digital business activity and technology innovation occurs with the involvement of contemporary cloud environments that provide highly sophisticated automated technology infrastructure and a vast range of technology resources. To successfully build upon, interact with, or create a cloud environment requires an understanding of its common inner mechanics, architectural layers, models, and security controls. It also requires an understanding of the business and economic factors that justify the adoption and real-world use of clouds and cloud-based products and services. In Cloud Computing: Concepts, Technology, Security & Architecture, Thomas Erl, one of the world's top-selling IT authors, teams up with cloud computing expert Eric Barceló Monroy and researchers to break down proven and mature cloud computing technologies and practices into a series of well-defined concepts, technology mechanisms, and technology architectures. Comprehensive coverage of containerization and cybersecurity topics is also included. All chapters are carefully authored from an industry-centric and vendor-neutral point of view. In doing so, the book establishes concrete, academic coverage with a focus on structure, clarity, and well-defined building blocks for mainstream cloud computing and containerization platforms and solutions. With nearly 370 figures, 40 architectural models, and 50 mechanisms, this indispensable guide provides a comprehensive education of contemporary cloud computing, containerization, and cybersecurity that will never leave your side.
- Published
- 2024
3. Field Guide to Digital Transformation, A
- Author
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Thomas Erl, Roger Stoffers, Thomas Erl, and Roger Stoffers
- Subjects
- Business enterprises--Computer networks--Management, Information technology--Management
- Abstract
Your Complete Guide to Digital Transformation A Field Guide to Digital Transformation is the definitive book on digital transformation. Top-selling IT author Thomas Erl and long-time practitioner Roger Stoffers combine to provide comprehensive, yet easy-to-understand coverage of essential digital transformation concepts, practices, and technologies in the format of a plain-English tutorial written for any IT professionals, students, or decision-makers. With more than 160 diagrams, this guide provides a highly visual exploration of what digital transformation is, how it works, and the techniques and technologies required to successfully build modern-day digital transformation solutions. Learn from the experts and: Discover what digital transformation is, why it emerged and when to apply it Identify the significant business benefits that successful digital transformations can deliver and how to turn your organization into a “disruptive” force Prepare for and overcome the common challenges associated with digital transformation initiatives Understand the data-driven nature of digital transformation solutions and how they use and continually accumulate data intelligence Understand how digital transformation solutions can utilize AI technology for intelligent automated decision-making Gain insight into customer-centricity and how its practices are applied as part of digital transformations Explore key digital transformation automation technologies, such as Robotic Process Automation (RPA), Internet of Things (IoT), Blockchain. and Cloud Computing Explore key digital transformation data science technologies, such as Artificial Intelligence (AI), Machine Learning, and Big Data Analysis and Analytics The book concludes with a uniquely detailed and highly visual real-world business scenario that provides step-by-step insights into how a digital transformation solution works, how it utilizes data intelligence to improve customer relationship building, and how it collects new data intelligence in support of enhancing future business capabilities.
- Published
- 2022
4. Book Review - Cloud Computing Design Patterns
- Author
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Thomas Erl, Amin Naserpour, and Robert Cope
- Subjects
Computer science ,Software security assurance ,business.industry ,Software deployment ,Section (archaeology) ,Software design pattern ,Cloud computing ,General Medicine ,Architecture ,Software engineering ,business - Abstract
Cloud Computing Design Patterns is written by Thomas Erl, Robert Cope, and Amin Naserpour, and published by Prentice Hall, © 2015, 978-0-13-385856-3, and is 591 pages long. The "Objective of This Book" section sets a lofty goal to catalog design patterns for cloud computing, targeting IT professionals who are involved in architecting, building, maintaining, evolving cloud-based solutions and environments. Since that fits squarely in the middle of my "day job", I was really excited to get my hands on this book.
- Published
- 2020
5. Service-Oriented Architecture : Analysis and Design for Services and Microservices
- Author
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Thomas Erl and Thomas Erl
- Subjects
- Service-oriented architecture (Computer science)
- Abstract
The Top-Selling, De Facto Guide to SOA--Now Updated with New Content and Coverage of Microservices! For more than a decade, Thomas Erl's best-selling Service-Oriented Architecture: Concepts, Technology, and Design has been the definitive end-to-end tutorial on SOA, service-orientation, and service technologies. Now, Erl has thoroughly updated the industry's de facto guide to SOA to reflect new practices, technologies, and strategies that have emerged through hard-won experience and creative innovation. This Second Edition officially introduces microservices and micro task abstraction as part of service-oriented architecture and its associated service layers. Updated case study examples and illustrations further explain and position the microservice model alongside and in relation to more traditional types of services. Coverage includes: • Easy-to-understand, plain English explanations of SOA and service-orientation fundamentals (as compiled from series titles) • Microservices, micro task abstraction, and containerization • Service delivery lifecycle and associated phases • Analysis and conceptualization of services and microservices • Service API design with REST services, web services, and microservices • Modern service API and contract versioning techniques for web services and REST services • Up-to-date appendices with service-orientation principles, REST constraints, and SOA patterns (including three new patterns) Service-Oriented Architecture: Analysis and Design for Services and Microservices, Second Edition, will be indispensable to application architects, enterprise architects, software developers, and any IT professionals interested in learning about or responsible for designing or implementing modern-day, service-oriented solutions. Chapter 1: Introduction Chapter 2: Case Study Backgrounds Part I: Fundamentals Chapter 3: Understanding Service-Orientation Chapter 4: Understanding SOA Chapter 5: Understanding Layers with Services and Microservices Part II: Service-Oriented Analysis and Design Chapter 6: Analysis and Modeling with Web Services and Microservices Chapter 7: Analysis and Modeling with REST Services and Microservices Chapter 8: Service API and Contract Design with Web Services Chapter 9: Service API and Contract Design with REST Services and Microservices Chapter 10: Service API and Contract Versioning with Web Services and REST Services Part III: Appendices Appendix A: Service-Orientation Principles Reference Appendix B: REST Constraints Reference Appendix C: SOA Design Patterns Reference Appendix D: The Annotated SOA Manifesto
- Published
- 2017
6. Big Data Fundamentals : Concepts, Drivers & Techniques
- Author
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Thomas Erl, Wajid Khattak, Paul Buhler, Thomas Erl, Wajid Khattak, and Paul Buhler
- Subjects
- Big data, Data mining, Decision making--Data processing
- Abstract
“This text should be required reading for everyone in contemporary business.” --Peter Woodhull, CEO, Modus21 “The one book that clearly describes and links Big Data concepts to business utility.” --Dr. Christopher Starr, PhD “Simply, this is the best Big Data book on the market!” --Sam Rostam, Cascadian IT Group “...one of the most contemporary approaches I've seen to Big Data fundamentals...” --Joshua M. Davis, PhD The Definitive Plain-English Guide to Big Data for Business and Technology Professionals Big Data Fundamentals provides a pragmatic, no-nonsense introduction to Big Data. Best-selling IT author Thomas Erl and his team clearly explain key Big Data concepts, theory and terminology, as well as fundamental technologies and techniques. All coverage is supported with case study examples and numerous simple diagrams. The authors begin by explaining how Big Data can propel an organization forward by solving a spectrum of previously intractable business problems. Next, they demystify key analysis techniques and technologies and show how a Big Data solution environment can be built and integrated to offer competitive advantages. Discovering Big Data's fundamental concepts and what makes it different from previous forms of data analysis and data science Understanding the business motivations and drivers behind Big Data adoption, from operational improvements through innovation Planning strategic, business-driven Big Data initiatives Addressing considerations such as data management, governance, and security Recognizing the 5 “V” characteristics of datasets in Big Data environments: volume, velocity, variety, veracity, and value Clarifying Big Data's relationships with OLTP, OLAP, ETL, data warehouses, and data marts Working with Big Data in structured, unstructured, semi-structured, and metadata formats Increasing value by integrating Big Data resources with corporate performance monitoring Understanding how Big Data leverages distributed and parallel processing Using NoSQL and other technologies to meet Big Data's distinct data processing requirements Leveraging statistical approaches of quantitative and qualitative analysis Applying computational analysis methods, including machine learning
- Published
- 2016
7. Cloud Computing Design Patterns
- Author
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Thomas Erl, Robert Cope, Amin Naserpour, Thomas Erl, Robert Cope, and Amin Naserpour
- Subjects
- Cloud computing--Design, Cloud computing
- Abstract
“This book continues the very high standard we have come to expect from ServiceTech Press. The book provides well-explained vendor-agnostic patterns to the challenges of providing or using cloud solutions from PaaS to SaaS. The book is not only a great patterns reference, but also worth reading from cover to cover as the patterns are thought-provoking, drawing out points that you should consider and ask of a potential vendor if you're adopting a cloud solution.” -- Phil Wilkins, Enterprise Integration Architect, Specsavers “Thomas Erl's text provides a unique and comprehensive perspective on cloud design patterns that is clearly and concisely explained for the technical professional and layman alike. It is an informative, knowledgeable, and powerful insight that may guide cloud experts in achieving extraordinary results based on extraordinary expertise identified in this text. I will use this text as a resource in future cloud designs and architectural considerations.” -- Dr. Nancy M. Landreville, CEO/CISO, NML Computer Consulting The Definitive Guide to Cloud Architecture and Design Best-selling service technology author Thomas Erl has brought together the de facto catalog of design patterns for modern cloud-based architecture and solution design. More than two years in development, this book's 100+ patterns illustrate proven solutions to common cloud challenges and requirements. Its patterns are supported by rich, visual documentation, including 300+ diagrams. The authors address topics covering scalability, elasticity, reliability, resiliency, recovery, data management, storage, virtualization, monitoring, provisioning, administration, and much more. Readers will further find detailed coverage of cloud security, from networking and storage safeguards to identity systems, trust assurance, and auditing. This book's unprecedented technical depth makes it a must-have resource for every cloud technology architect, solution designer, developer, administrator, and manager. Topic Areas Enabling ubiquitous, on-demand, scalable network access to shared pools of configurable IT resources Optimizing multitenant environments to efficiently serve multiple unpredictable consumers Using elasticity best practices to scale IT resources transparently and automatically Ensuring runtime reliability, operational resiliency, and automated recovery from any failure Establishing resilient cloud architectures that act as pillars for enterprise cloud solutions Rapidly provisioning cloud storage devices, resources, and data with minimal management effort Enabling customers to configure and operate custom virtual networks in SaaS, PaaS, or IaaS environments Efficiently provisioning resources, monitoring runtimes, and handling day-to-day administration Implementing best-practice security controls for cloud service architectures and cloud storage Securing on-premise Internet access, external cloud connections, and scaled VMs Protecting cloud services against denial-of-service attacks and traffic hijacking Establishing cloud authentication gateways, federated cloud authentication, and cloud key management Providing trust attestation services to customers Monitoring and independently auditing cloud security Solving complex cloud design problems with compound super-patterns
- Published
- 2015
8. SOA with Java : Realizing Service-Orientation with Java Technologies
- Author
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Thomas Erl, Andre Tost, Satadru Roy, Philip Thomas, Raj Balasubramanian, David Chou, Thomas Plunkett, Thomas Erl, Andre Tost, Satadru Roy, Philip Thomas, Raj Balasubramanian, David Chou, and Thomas Plunkett
- Abstract
“An outstanding depth-and-breadth resource for IT architects and Java professionals to understand and apply the marriage of SOA and modern Java.” -- Antonio Bruno, Enterprise Architecture and Strategy, digitalStrom “A great self-contained book on SOA using flexible Java implementations....” -- Roger Stoffers, Hewlett Packard “Provides clarity on abstract concepts and is filled with concrete examples of implementing SOA principles in Java environments.” -- Sanjay Singh, Certified SOA Architect “...provides a holistic, comprehensive view on leveraging SOA principles and architecture for building and deploying performant Java services.” -- Suzanne D'Souza, KBACE Technologies “Thomas Erl's series of books on services technology have shaped, influenced, and strengthened a whole community of enterprise and solution architects'thinking and solution development, and the much awaited SOA with Java book is an excellent addition to the series. It is a must-read.” -- Lalatendu Rath, Wipro Technologies The Definitive Guide to Building Service-Oriented Solutions with Lightweight and Mainstream Java Technologies Java has evolved into an exceptional platform for building Web-based enterprise services. In SOA with Java, Thomas Erl and several world-class experts guide you in mastering the principles, best practices, and Java technologies you need to design and deliver high-value services and service-oriented solutions. You'll learn how to implement SOA with lightweight frameworks, mainstream Java services technologies, and contemporary specifications and standards. To demonstrate real-world examples, the authors present multiple case study scenarios. They further demystify complex concepts with a plain-English writing style. This book will be valuable to all developers, analysts, architects, and other IT professionals who want to design and implement Web-based service-oriented architectures and enterprise solutions with Java technologies. Topic Areas Applying modern service-orientation principles to modern Java technology platforms Leveraging Java infrastructure extensions relevant to service-oriented solutions Exploring key concepts associated with SOA and service-orientation within the context of Java Reviewing relevant Java platforms, technologies, and APIs Understanding the standards and conventions that REST and SOAP services are built upon in relation to Java implementations Building Java Web-based services with JAX-WS and JAX-RS Applying the eight key principles of service-orientation design using Java tools and technologies Creating Java utility services: architectural, design, and implementation issues Constructing effective entity services: service contracts, messages, data access, and processing Constructing task services, including detailed guidance on service composition Using ESBs to support infrastructure requirements in complex services ecosystems
- Published
- 2014
9. Next Generation SOA : A Concise Introduction to Service Technology & Service-Orientation
- Author
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Thomas Erl, Pethuru Chelliah, Clive Gee, Jürgen Kress, Berthold Maier, Hajo Normann, Leo Shuster, Bernd Trops, Clemens Utschig-Utschig, Philip Wik, Torsten Winterberg, Thomas Erl, Pethuru Chelliah, Clive Gee, Jürgen Kress, Berthold Maier, Hajo Normann, Leo Shuster, Bernd Trops, Clemens Utschig-Utschig, Philip Wik, and Torsten Winterberg
- Subjects
- Service-oriented architecture (Computer science), Object-oriented programming (Computer science), Computer software--Development, Programmeertalen
- Abstract
The Concise Introduction to Modern SOA: High-Value Approaches, Innovative Technologies, Proven Use Cases After a decade of innovation in technology and practice, SOA is now a mainstream computing discipline, capable of transforming IT enterprises and optimizing business automation. In Next Generation SOA, top-selling SOA author Thomas Erl and a team of experts present a plain-English tour of SOA, service-orientation, and the key service technologies being used to build sophisticated contemporary service-oriented solutions. The starting point for today's IT professionals, this concise guide distills the increasingly growing and diverse field of service-oriented architecture and the real-world practice of building powerful service-driven systems. Accessible and jargon-free, this book intentionally avoids technical details to provide easy-to-understand, introductory coverage of the following topics: Services, service-orientation, and service-oriented computing: what they are and how they have evolved How SOA and service-orientation change businesses and transform IT culture, priorities, and technology decisions How services are defined and composed to solve a wide spectrum of business problems Deep implications of the service-orientation paradigm--illuminated through an annotation of the classic SOA Manifesto Traditional and contemporary service technologies and architectures How clouds and virtualization support the scalability and reliability of services-based solutions SOA-based industry models, from enterprise service to global trader A detailed case study: how real enterprises bring together contemporary SOA practices, models, and technologies Next Generation SOA will be indispensable to wide audiences of business decision makers and technologists--including architects, developers, managers, executives, strategists, consultants, and researchers.
- Published
- 2014
10. Cloud Computing : Concepts, Technology & Architecture
- Author
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Thomas Erl, Ricardo Puttini, Zaigham Mahmood, Thomas Erl, Ricardo Puttini, and Zaigham Mahmood
- Subjects
- Cloud computing
- Abstract
Clouds are distributed technology platforms that leverage sophisticated technology innovations to provide highly scalable and resilient environments that can be remotely utilized by organizations in a multitude of powerful ways. To successfully build upon, integrate with, or even create a cloud environment requires an understanding of its common inner mechanics, architectural layers, and models, as well as an understanding of the business and economic factors that result from the adoption and real-world use of cloud-based services. In Cloud Computing: Concepts, Technology & Architecture, Thomas Erl, one of the world's top-selling IT authors, teams up with cloud computing experts and researchers to break down proven and mature cloud computing technologies and practices into a series of well-defined concepts, models, technology mechanisms, and technology architectures, all from an industry-centric and vendor-neutral point of view. In doing so, the book establishes concrete, academic coverage with a focus on structure, clarity, and well-defined building blocks for mainstream cloud computing platforms and solutions. Subsequent to technology-centric coverage, the book proceeds to establish business-centric models and metrics that allow for the financial assessment of cloud-based IT resources and their comparison to those hosted on traditional IT enterprise premises. Also provided are templates and formulas for calculating SLA-related quality-of-service values and numerous explorations of the SaaS, PaaS, and IaaS delivery models. With more than 260 figures, 29 architectural models, and 20 mechanisms, this indispensable guide provides a comprehensive education of cloud computing essentials that will never leave your side.
- Published
- 2013
11. SOA with REST : Principles, Patterns & Constraints for Building Enterprise Solutions with REST
- Author
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Thomas Erl, Benjamin Carlyle, Cesare Pautasso, Raj Balasubramanian, Thomas Erl, Benjamin Carlyle, Cesare Pautasso, and Raj Balasubramanian
- Subjects
- Representational State Transfer (Software architec, Service-oriented architecture (Computer science)
- Abstract
The Definitive Guide to Building Web-Centric SOA with REST The World Wide Web is based on the most successful technology architecture in history. It has changed how we view, access, and exchange information and, with the advent of REST, it has also provided us with compelling ways to build and improve automation solutions. REST provides a great deal of guidance to ensure that an architecture and its automation logic are technically sound, though it is still your responsibility to build services that actually add value to your business. SOA with REST is the first comprehensive tutorial and reference for designing and building RESTful services as part of service-oriented solutions and in conjunction with service-oriented architecture (SOA). This book demonstrates that REST is not only a suitable medium for building truly service-oriented solutions, but also that the service-oriented architectural model is a necessary foundation for REST technology architectures to realize their full business potential. The authors provide thorough mapping of REST constraints and architectural goals with service-orientation principles and SOA characteristics. Using real-world examples, they show how to leverage REST's simplicity, flexibility, and low overhead without compromising the power or manageability of service-oriented solutions and architectures. This ebook will be valuable to IT architects, developers, and any practitioner seeking to use SOA and REST together.
- Published
- 2012
12. SOA Governance
- Author
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Thomas Erl, Stephen G. Bennett, Benjamin Carlyle, Clive Gee, Robert Laird, Anne Thomas Manes, Andre Tost, Thomas Erl, Stephen G. Bennett, Benjamin Carlyle, Clive Gee, Robert Laird, Anne Thomas Manes, and Andre Tost
- Subjects
- Service-oriented architecture (Computer science), Business enterprises--Computer networks--Manag
- Abstract
“This book provides an indispensable guide for establishing a firm SOA governance foundation. Easy to read, comprehensive, pragmatic...excellent job.” --Nick Laqua, Enterprise SOA Architect, Cathay Pacific Airways “SOA Governance is a must-read that provides an in-depth look at the organizational, managerial, procedural, and technical aspects that any SOA project needs to consider. If you're investing in SOA, you'll benefit greatly by having this excellent resource available to you as you contend with the many challenges of creating your own SOA governance.” --David E. Michalowicz, Principal, Information Systems Engineer, The MITRE Corporation “With this book Thomas Erl [and his team] do a great job in outlining a framework to implement an SOA governance program. For each stage of the project lifecycle, necessary governance precepts and processes are described concretely by referring to the service-orientation principles and SOA patterns. This makes it an indispensable source of information for any SOA practitioner or any professional who plans to start an SOA initiative.” --Jean-Paul De Baets, Principal SOA Architect, Fedict (Belgian Federal Government Information and Communication Technology Service) “This book on SOA governance provides both thoughtful and carefully crafted narrative and the supplementation of poignant real-world case studies that will help practitioners calibrate guidance to realities on the ground. This is a terrific book that will be heavily used--with tab stickers, dog-ears, highlighting, and column notes abounding to show for it--as practitioners strategize and subsequently iterate through organizational learnings on their journeys to SOA maturity.” --David S. Rogers, Manager, IEEE Conferences Business and Technology Solutions Office “Thomas Erl's SOA Governance clarifies the principles behind this crucial capability for SOA adoption. Finally, a contribution that serves as a guide for project managers, architects, and any related role that has a common goal: the establishment, administration, and vision behind a service-enabled enterprise. Accenture sees this book as a milestone that will support the rationale behind selling and delivering SOA governance projects around the world.” --Dr. Matthias Ziegler, Accenture; Dr. Jure Zakotnik, Accenture; Thomas M. Michelbach, Accenture “Thomas Erl's SOA Governance book fills in an important missing piece for any organization wanting to move to--and succeed with--an enterprise commitment to implement SOA and realize its overarching benefits. Of equal importance, however, is the fact that the basic concepts and frameworks that the book instantiates in the context of SOA can also be productively applied in other contexts that are not formally ‘SOA-esque,'but where complexity is in need of formal governance.” --Charles N. Mead, MD, MSc., Senior Technical Advisor to the Director, National Cancer Institute Center for Bioinformatics and Information Technology (NCI CBIIT) Chair, Architecture Board, Health Level 7 (HL7) “SOA Governance is the best read on governance and software delivery processes since the publication of RUP; it is the book that defines the standard Service Delivery Processes for all project lifecycle models and defines the necessary conditions and roadmap to reach SOA in the IT organization.” --Filippos Sant
- Published
- 2011
13. SOA with .NET and Windows Azure : Realizing Service-Orientation with the Microsoft Platform, Portable Documents
- Author
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Thomas Erl, David Chou, John deVadoss, Nitin Gandhi, Hanu Kommalapati, Brian Loesgen, Christoph Schittko, Herbjorn Wilhelmsen, M Williams, Scott Golightly, Darryl Hogan, Jeff King, Scott Seely, Thomas Erl, David Chou, John deVadoss, Nitin Gandhi, Hanu Kommalapati, Brian Loesgen, Christoph Schittko, Herbjorn Wilhelmsen, M Williams, Scott Golightly, Darryl Hogan, Jeff King, and Scott Seely
- Subjects
- Windows Azure, Service-oriented architecture (Computer science), Cloud computing, Microsoft .NET Framework
- Abstract
The Authoritative Guide to Building Service-Oriented Solutions with Microsoft.NET Technologies and the Windows Azure Cloud Computing Platform In SOA with.NET and Windows Azure, top Microsoft technology experts team up with Thomas Erl to explore service-oriented computing with Microsoft's latest.NET service technologies and Windows Azure innovations. The authors provide comprehensive documentation of on-premise and cloud-based modern service technology advancements within the Microsoft platform and further show how these technologies have increased the potential for applying and realizing service-orientation practices and goals. Specifically, the book delves into Microsoft enterprise technologies, such as: Windows Communication Foundation (WCF) Windows Azure Windows Workflow Foundation (WF) Windows Azure AppFabric BizTalk Server Windows Presentation Foundation (WPF)...as well as industry service mediums, including WS-• and REST, and many related service industry standards and technologies. The book steps through common SOA design patterns and service-orientation principles, along with numerous code-level examples that further detail various technology architectures and implementations. Topic Areas This book covers the following primary topics: Microsoft Service Technologies Microsoft Enterprise Technologies On-Premise & Cloud-Based Service Topics Industry Service Technologies & Mediums Service-Oriented Technology Architectural Models Service-Orientation Design Paradigm Service-Orientation Design Principles SOA Design Patterns About the Web Sites This book series is further supported by a series of resources sites, including: www.soabooks.com www.soaspecs.com www.soamag.com www.serviceorientation.com www.soapatterns.org www.soaprinciples.com www.whatissoa.com
- Published
- 2010
14. Monitoring of Atmospheric Corrosion of Aircraft Aluminum Alloy AA2024 by Acoustic Emission Measurements
- Author
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Thomas Erlinger, Christoph Kralovec, and Martin Schagerl
- Subjects
acoustic emission ,atmospheric corrosion ,aluminum ,aircraft structure ,pitting corrosion ,hydrogen bubbles ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Atmospheric corrosion of aluminum aircraft structures occurs due to a variety of reasons. A typical phenomenon leading to corrosion during aircraft operation is the deliquescence of salt contaminants due to changes in the ambient relative humidity (RH). Currently, the corrosion of aircraft is controlled through scheduled inspections. In contrast, the present contribution aims to continuously monitor atmospheric corrosion using the acoustic emission (AE) method, which could lead to a structural health monitoring application for aircraft. The AE method is frequently used for corrosion detection under immersion-like conditions or for corrosion where stress-induced cracking is involved. However, the applicability of the AE method to the detection of atmospheric corrosion in unloaded aluminum structures has not yet been demonstrated. To address this issue, the present investigation uses small droplets of a sodium chloride solution to induce atmospheric corrosion of uncladded aluminum alloy AA2024-T351. The operating conditions of an aircraft are simulated by controlled variations in the RH. The AE signals are measured while the corrosion site is visually observed through video recordings. A clear correlation between the formation and growth of pits, the AE and hydrogen bubble activity, and the RH is found. Thus, the findings demonstrate the applicability of the AE method to the monitoring of the atmospheric corrosion of aluminum aircraft structures using current measurement equipment. Numerous potential effects that can affect the measurable AE signals are discussed. Among these, bubble activity is considered to cause the most emissions.
- Published
- 2022
- Full Text
- View/download PDF
15. Web Service Contract Design and Versioning for SOA
- Author
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Thomas Erl, Anish Karmarkar, Priscilla Walmsley, Hugo Haas, David Umit Orchard, Kevin Liu, L. Umit Yalcinalp Ph.D, Andre Tost, James Pasley, Thomas Erl, Anish Karmarkar, Priscilla Walmsley, Hugo Haas, David Umit Orchard, Kevin Liu, L. Umit Yalcinalp Ph.D, Andre Tost, and James Pasley
- Subjects
- Web services, Computer network architectures, Computer architecture
- Abstract
This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version. The Ultimate Guide for Designing and Governing Web Service Contracts For Web services to succeed as part of SOA, they require balanced, effective technical contracts that enable services to be evolved and repeatedly reused for years to come. Now, a team of industry experts presents the first end-to-end guide to designing and governing Web service contracts. Writing for developers, architects, governance specialists, and other IT professionals, the authors cover the following areas: Understanding Web Service Contract Technologies Initial chapters and ongoing supplementary content help even the most inexperienced professional get up to speed on how all of the different technologies and design considerations relate to the creation of Web service contracts. For example, a visual anatomy of a Web service contract documented from logical and physical perspectives is provided, along with a chapter dedicated to describing namespaces in plain English. The book is further equipped with numerous case study examples and many illustrations. Fundamental and Advanced WSDL Tutorial coverage of WSDL 1.1 and 2.0 and detailed descriptions of their differences is followed by numerous advanced WSDL topics and design techniques, including extreme loose coupling, modularization options, use of extensibility elements, asynchrony, message dispatch, service instance identification, non-SOAP HTTP binding, and WS-BPEL extensions. Also explained is how WSDL definitions are shaped by key SOA design patterns. Fundamental and Advanced XML Schema XML Schema basics are covered within the context of Web services and SOA, after which advanced XML Schema chapters delve into a variety of specialized message design considerations and techniques, including the use of wildcards, reusability of schemas and schema fragments, type inheritance and composition, CRUD-style message design, and combining industry and custom schemas. Fundamental and Advanced WS-Policy Topics, such as Policy Expression Structure, Composite Policies, Operator Composition Rules, and Policy Attachment establish a foundation upon which more advanced topics, such as policy reusability and centralization, nested, parameterized, and ignorable assertions are covered, along with an exploration of creating concurrent policy-enabled contracts and designing custom policy assertions and vocabularies. Fundamental Message Design with SOAPA broad range of message design-related topics are covered, including SOAP message structures, SOAP nodes and roles, SOAP faults, designing custom SOAP headers and working with industry-standard SOAP headers. Advanced Message Design with WS-Addressing The art of message design is taken to a new level with in-depth descriptions of WS-Addressing endpoint references (EPRs) and MAP headers and an exploration of how they are applied via SOA design patterns. Also covered are WSDL binding considerations, related MEP rules, WS-Addressing policy assertions, and detailed coverage of how WS-Addressing relates to SOAP Action values. Advanced Message Design with MTOM, and SwA Developing SOAP messages capable of transporting
- Published
- 2008
16. SOA Design Patterns
- Author
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Thomas Erl and Thomas Erl
- Subjects
- Web services, Computer architecture, Software patterns, System design
- Abstract
This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version. “SOA Design Patterns is an important contribution to the literature and practice of building and delivering quality software-intensive systems.” - Grady Booch, IBM Fellow “With the continued explosion of services and the increased rate of adoption of SOA through the market, there is a critical need for comprehensive, actionable guidance that provides the fastest possible time to results. Microsoft is honored to contribute to the SOA Design Patterns book, and to continue working with the community to realize the value of Real World SOA.” - Steven Martin, Senior Director, Developer Platform Product Management, Microsoft “SOA Design Patterns provides the proper guidance with the right level of abstraction to be adapted to each organization's needs, and Oracle is pleased to have contributed to the patterns contained in this book.” - Dr. Mohamad Afshar, Director of Product Management, Oracle Fusion Middleware, Oracle “Red Hat is pleased to be involved in the SOA Design Patterns book and contribute important SOA design patterns to the community that we and our customers have used within our own SOA platforms. I am sure this will be a great resource for future SOA practitioners.” - Pierre Fricke Director, Product Line Management, JBoss SOA Platform, Red Hat “A wealth of proven, reusable SOA design patterns, clearly explained and illustrated with examples. An invaluable resource for all those involved in the design of service-oriented solutions.” - Phil Thomas, Consulting IT Specialist, IBM Software Group “This obligatory almanac of SOA design patterns will become the foundation on which many organizations will build their successful SOA solutions. It will allow organizations to build their own focused SOA design patterns catalog in an expedited fashion knowing that it contains the wealth and expertise of proven SOA best practices.” - Stephen Bennett, Director, Technology Business Unit, Oracle Corporation “The technical differences between service orientation and object orientation are subtle enough to confuse even the most advanced developers. Thomas Erl's book provides a great service by clearly articulating SOA design patterns and differentiating them from similar OO design patterns.” - Anne Thomas Manes, VP & Research Director, Burton Group “SOA Design Patterns does an excellent job of laying out and discussing the areas of SOA design that a competent SOA practitioner should understand and employ.” - Robert Laird, SOA Architect, IBM “As always, Thomas delivers again. In a well-structured and easy-to-understand way, this book provides a wonderful collection of patterns each addressing a typical set of SOA design problems with well articulated solutions. The plain language and hundreds of diagrams included in the book help make the complicated subjects of SOA design comprehensible even to those who are new to the SOA design world. It's a must-have reference book for all SOA practitioners, especially for enterprise architects, solution architects, developers, managers, and busines
- Published
- 2008
17. SOA Principles of Service Design
- Author
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Thomas Erl and Thomas Erl
- Subjects
- Web services, Service-oriented architecture (Computer science), Computer architecture, System analysis, System design
- Abstract
The Definitive Guide to Service Engineering The key to succeeding with service-oriented architecture (SOA) is in comprehending the meaning and significance of its most fundamental building block: the service. It is through an understanding of service design that truly “service-oriented” solution logic can be created in support of achieving the strategic goals associated with SOA and service-oriented computing. Bestselling SOA author Thomas Erl guides you through a comprehensive, insightful, and visually rich exploration of the service-orientation design paradigm, revealing exactly how services should and should not be designed for real-world SOA.
- Published
- 2007
18. Polysomnography in preterm infants with perinatal pathology: first 5-year experience in Ukraine
- Author
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Dariia Kostiukova, Anastasiya Babintseva, Thomas Erler, Yelyzaveta Shunko, and Maksym Roziaiev
- Subjects
preterm infants ,polysomnography ,sleep-related breathing disorders ,apnea ,Medicine ,Pediatrics ,RJ1-570 - Abstract
Background: Polysomnography (PSG) is an important component in comprehensive neuromonitoring that allows timely evaluation of the sleep maturation quality and diagnosis of Sleep-Related Breathing Disorders (SRBD) in preterm infants (PIs). Aim: To determine PSG indices in PIs of different gestational age with perinatal pathology. Methods: This was the first original single-center observational study conducted in Ukraine. The groups of observation consisted of a total of 61 PIs with perinatal pathology: 16 infants of 24-28 weeks (Group I), 33 infants of 29-32 weeks (Group II), and 12 infants of 33-36 weeks (Group III). Non-parametric methods were used for statistical analyses. Results: A maximum level of Respiratory Disturbance Index during Quiet Sleep (pI-II = 0.016, pI-III = 0.014), and Respiratory Disturbance Index Total and Respiratory Disturbance Index during Active Sleep was found in Group I with an average postmenstrual age (PMA) of 36 weeks, as well as a maximum frequency of SRBD with predominance of hypopnea and obstructive apnea. A statistically valuable decrease in Respiratory Disturbance Index during Quiet Sleep was determined in Group II with an average PMA of 35 weeks, with a stable decrease in all other indices. Minimum values were found in of all the PSG indices in Group III with an average PMA of 38 weeks. Mean values of Arousal Index in all the groups of observation were higher than 20. The minimum level of oxygen saturation during SRBD was diagnosed in infants from Group I (pI-III = 0.0072). Conclusions: Disorders of physiological sleep formation and pathological respiratory events during sleep were found in the majority of PIs with perinatal pathology, which stipulates the necessity to conduct careful monitoring of vital functions and differential treatment of various apnea types.
- Published
- 2021
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19. Service-Oriented Architecture : Concepts, Technology, and Design
- Author
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Thomas Erl and Thomas Erl
- Subjects
- Web services, Computer network architectures, Computer architecture
- Abstract
Service-Oriented Architecture (SOA) is at the heart of a revolutionary computing platform that is being adopted world-wide and has earned the support of every major software provider. In Service-Oriented Architecture: Concepts, Technology, and Design, Thomas Erl presents the first end-to-end tutorial that provides step-by-step instructions for modeling and designing service-oriented solutions from the ground up. Erl uses more than 125 case study examples and over 300 diagrams to illuminate the most important facets of building SOA platforms: goals, obstacles, concepts, technologies, standards, delivery strategies, and processes for analysis and design. His book's broad coverage includes Detailed step-by-step processes for service-oriented analysis and service-oriented design An in-depth exploration of service-orientation as a distinct design paradigm, including a comparison to object-orientation A comprehensive study of SOA support in.NET and J2EE development and runtime platforms Descriptions of over a dozen key Web services technologies and WS-• specifications, including explanations of how they interrelate and how they are positioned within SOA The use of'In Plain English'sections, which describe complex concepts through non-technical analogies Guidelines for service-oriented business modeling and the creation of specialized service abstraction layers A study contrasting past architectures with SOA and reviewing current industry influences Project planning and the comparison of different SOA delivery strategies The goal of this book is to help you attain a solid understanding of what constitutes contemporary SOA along with step-by-step guidance for realizing its successful implementation.
- Published
- 2005
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