Summary
In this presentation, Rebecca Wirfs-Brock presents some practical lessons she has learned from doing architectural reviews. Many times projects are not delivered in time, or have quality problems or have an incomplete set of features due to architectural flaws. The reviews are meant to highlight existing risks and strengths of the architecture, and to reveal issues initially neglected.

Bio
Rebecca Wirfs-Brock invented the way of thinking about objects known as Responsibility-Driven Design. She is lead author of the classic Designing Object-Oriented Software, and Object Design: Roles, Responsibilities and Collaborations. She is the design columnist for IEEE Software and past board member of the Agile Alliance.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this presentation filmed during JAOO 2007, Wayne Fenton, Director of Architecture at eBay Inc., talks about the ways in which software architects can design systems for much-improved efficiency and reliability from an operational perspective.

Bio
Wayne Fenton is Director of Architecture at eBay Inc. His main area of focus is designing and building large scale web infrastructure components to facilitate technology interoperability between eBay properties (e.g. eBay, PayPal, Skype, shopping.com, etc). Prior to eBay, Mr. Fenton worked as a VoIP solutions architect for Cisco Systems.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In a 60-minute JAOO 2005 talk, Scrum creator Dr. Jeff Sutherland covers the history of Scrum from its inception thru his participation with Ken Schwaber in rolling out Scrum to industry, to its impact at Easel, Fuji-Xerox, Honda, WildCard, Lexus, Google. He looks at Scrum types A, B and "all at once" type C, and confirms the humorous rumour that Kent Beck "stole" Scrum practices when creating XP.

Bio
Dr. Jeff Sutherland has been VP/CTO of 9 software product companies, most recently PatientKeeper, a top vendor in the mobile/wireless healthcare market. He is an Agile Manifesto signatory and a Certified Scrum Trainer. In 1993 he ran the first Scrum at Easel, and has been a Scrum consultant to Microsoft, Yahoo, Ariba, Cadence, Adobe, GE Healthcare, and M3 Media Services. www.jeffsutherland.com

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Summary
Domain Specific Languages (DSLs) are limited forms of computer language designed for a specific class of problems. In this JAOO conference talk, Martin Fowler introduces a simple example of DSL, bringing out the difference between external and internal DSLs, and talking through the trade-offs in using both forms. The talk is based on Martin's language workbench article on martinfowler.com.

Bio
Martin Fowler is one of our industry's most well known thought leaders having had an influence in the adoption of OO, refactoring, patterns, agile methodologies, domain modeling, UML, and XP. Martin is Chief Scientist at ThoughtWorks, and writes regularly at www.martinfowler.com.

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Summary
In this conference talk Andrew Scotland tells how BBC's New Media division, characterized by a lot of uncertainty and emergent software process, decided to use Scrum to more effectively deliver software amidst all that change and uncertainty. Three years later - the difference is significant, and the journey was worthwhile.

Bio
Andrew Scotland is Head of Development within the BBC's New Media Division. He is a certified SCRUM master and has successfully introduced SCRUM practice into the New Media division's multidisciplinary development teams (Software Engineering, User Experience, Information Architecture, Editorial, Product Management and Project Management).

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
ClickOnce, part of version .NET 2.0, allows the deployment of Windows-based rich client apps by placing the app files on a Web or file server and providing the user with a link. This session covers VS 2005 deployment capabilities for online and offline support, rolling back to previous versions of an app, listing an app in the Start Menu and control panel, and zone-based debugging.

Bio
Cathi Gero, C.P.A., is founder and development director of Prenia Corporation, providing custom software applications, training, and architectural designing to businesses and developers. Cathi is a Microsoft C# MVP and is an active member of the .NET community. cgero[at]prenia.com

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
ASP.NET lead architect Nikhil Lothari demonstrates the out-of-box features in ASP.NET Ajax can be used to enrich Web apps with Ajax functionality and incorporate various Ajax patterns in a simple manner; he also demonstrates more powerful usage of the script framework, best practices and design patterns for incorporating and encapsulating script functionality.

Bio
Nikhil Kothari is the architect of ASP.NET Ajax, part of the Web Platform and Tools team at Microsoft (which delivers IIS, ASP.NET and Visual Studio Web development tools). Nikhil led the development of the page framework and several of the controls in the ASP.NET toolbox today. Nikhil blogs at nikhilk.net

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Windows Presentation Foundation is a fundamental shift from how interactive applications have previously worked in Windows. In this session, Ian Griffiths shows key features of WPF such as XAML, composition, layout, animation, and data binding. Moreover, we will examine the need for WPF, showing both how and why it differs so radically from the classic Win32 approach.

Bio
Ian is a C# MVP, freelance software developer and consultant. He specializes in digital imaging applications, mainly broadcast video and medical imaging systems. Ian is also an instructor and course author for Pluralsight, and co-author of two books: .NET Windows Forms in a Nutshell and Mastering Visual Studio .NET, both by O'Reilly.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Ian Cartwright presents some of his work (developed with Martin Fowler) on Event Patterns, including: Event Sourcing, Event Collaboration, Parallel Model, and Retroactive Event. These patterns can be used in scenarios where a sequence of domain model changes may need to be recorded, reversed, corrected, or simply observed.

Bio
Ian Cartwright is a consultant and ThoughtWorks and worked with Martin Fowler on distilling these event patterns.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this presentation, Mikkel Hippe Brun, Chief Consultant at Danish National IT and Telecom Agency, introduces Denmark's national Service Oriented Infrastructure, which is based on a number of replicated UDDI registries and interoperability profiles based on the WS-*architecture and the UBL standard. Among the topics covered is the difference between SOA within and across company boundaries.

Bio
After co-founding a software development company specializing in SGML and XML database publishing techniques and a number of development projects, Mikkel Hippe Brun worked as an independent consultant on XML-technologies to the Danish Ministry of Science, Technology and Innovation before becoming Chief Consultant at Danish National IT and Telecom Agency.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
We've come a long way from the first versions of J2EE. We've learned to avoid invasive programming models, we've developed a rich set of frameworks and APIs, we know how to develop apps based around simple objects. Are we there yet? Most of us would answer no. If we're not there yet, then where are we headed next? Spring founder Rod Johnson explores this issue. Recorded at JAOO Sept 2006.

Bio
Rod is the father of Spring. The Spring Framework open source project began in February 2003, based on the Interface21 framework published with Rod's best-selling Expert One-on-One J2EE Design and Development. Rod is one of the world's leading authorities on Java and J2EE development.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
The presentation shows how to involve on-site customers in the evolution of their DSL syntax and how it leads to higher-quality, more correct software. The process of moving from a draft DSL syntax to implementation via TDD will be explained in depth.

Bio
Obie Fernandez is an independent consultant who previously established the Ruby practice at ThoughtWorks as a Senior Consultant Technologist. He specializes in the design and implementation of web-based applications and has extensive enterprise experience integrating large-scale, distributed applications and legacy systems. Obie has expert-level knowledge of Java enterprise technologies.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this presentation recorded at JAOO, IBM's Rod Smith discusses how technologies such as Wikis are combined with Web services and Atom and RSS feeds to form mashups, enabling the next wave of DIY-IT by combining the flexibility of user-oriented information architecture provided by active content with that of content-in-flight to provide an easy-to-use end-user integration platform.

Bio
Rodney A. Smith is a Distinguished Engineer and the VP of Emerging Internet Technology at IBM, responsible for leading technological innovation in the Internet software space and guiding it into industry standard specifications. He advises on investment and partnering opportunities and is the lead negotiator and technical strategist in negotiations with numerous companies in the technology arena.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this presentation, which was recorded at JAOO, Software AG's Ivo Totev introduces his views on SOA and SOA Governance. Topics covered include how SOA governance can be defined, why governance is needed, and what areas it can be decomposed into. Totev also describes a SOA registry/repository solution, which in Totev's opinion is something that should be introduced in the earliest stages.

Bio
Ivo Totev is Vice President SOA Strategy and member of the Extended Management Board of Software AG. Ivo is a recognized industry expert in Service Oriented Architecture, Integration and Web Services technologies, and is a regular keynote speaker at major technology conferences including JAOO and Java ONE. Prior to joining Software AG Ivo worked for SAP AG and Sun Microsystems.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
As Edd Dumbill wrote, "the subtle elegance of the Ruby idiom is a slowly appreciated and highly satisfying flavour." It's true that some of the best things about Ruby aren't obvious to newcomers. In this talk Glenn Vanderburg demonstrates some of the subtle beauty that experienced Rubyists know and love.

Bio
Glenn Vanderburg is an independent consultant focused on cutting-edge software development technologies and techniques, including Ruby, JavaScript, Ajax, and state-of-the-art development practices.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Ivar Jacobson, one of the founders of UML, RUP, use cases, introduces his vision for a next generation development methodology that is both agile yet large like UP, by having humans collaborate with 'Intelligent Agents'. Ivar also talks about his views on UML, MDA, AOP, and the future. Recorded at JAOO (jaoo.dk).

Bio
Dr. Ivar Jacobson, co-founder of Jaczone AB, continues to be one of the great thought-leaders of the software world. He has made several seminal contributions to the field: he is one of the fathers of components and component architecture, use cases, modern business engineering, the Unified Modeling Language and the Rational Unified Process.

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Summary
Dragos Manolescu shares insights gained from growing ThoughtWorks' architecture evaluation practice and evaluating several architectures for Global 1000 companies. These insights aim at preparing people interested in commissioning, managing, performing, participating in, or analyzing the results of architecture evaluation to tackle the realities of the front line.

Bio
Dragos Manolescu is a Software Architect in the Patterns and Practices group at Microsoft. Prior to joining MS he led ThoughtWorks' Architecture Evaluation practice, assisting Global 1000 companies with the evaluation and design of software architectures. More information about his research and interests is available from micro-workflow.com.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Martin Fowler, Frank Buschmann, Steve Cook, Jimmy Nilsson, and Dave Thomas discuss the future of software development. Topics covered include outsourcing, is Google the next MS?, multi-core & parallism, grid computing, software stacks of the future, and more. A thoroughly thought-provoking panel! JAOO is producing the QCon event.

Bio
The panel was moderated by Martin Fowler, and included POSA author Frank Buschmann (from Siemens), Steve Cook (working on DSL tools at Microsoft), Jimmy Nilsson (author of Applying DDD), and Dave Thomas (founder of OTI who created Visual Age).

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Summary
This talk introduces two broad principles for strategic design. 'Context mapping' addresses the fact that different groups model differently. 'Core domain' distills a shared vision of the system's "core domain" and provides a systematic guide to when "good enough" is good enough versus when to push for excellence.

Bio
Eric Evans is a specialist in domain modeling and design in large business systems. Since the early 1990s, he has worked on many projects developing large business systems with objects and has been deeply involved in applying Agile processes on real projects. Eric is the author of "Domain-Driven Design" (Addison-Wesley, 2003) and he leads the consulting group Domain Language, Inc.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
This talk will outline some of the foundations of domain-driven design:

• How models are chosen and evaluated;
• How multiple models coexist;How the patterns help avoid the common pitfalls, such as overly interconnected models;
• How developers and domain experts together in a DDD team engage in deeper exploration of their problem domain and make that understanding tangible as a practical software design.

Bio
Eric Evans is a specialist in domain modeling and design in large business systems. Since the early 1990s, he has worked on many projects developing large business systems with objects and has been deeply involved in applying Agile processes on real projects. Eric is the author of "Domain-Driven Design" (Addison-Wesley, 2003) and he leads the consulting group Domain Language, Inc.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Len Bass from SEI presents the Architectural Trade Off Analysis Method and its relation to architectural evaluation questions: criteria for evaluation, participants, how to focus on the part of the architecture under evaluation, how to know what to look for and how results are presented. He also shows that the highest risk is things omitted, not things that were incorrect.

Bio
Len Bass is a Senior Member of the Technical Staff at the Software Engineering Institute (SEI). He has written two award winning books in software architecture as well as several other books and numerous papers in a wide variety of areas of computer science and software engineering. He is currently working on techniques for the methodical design of software architectures.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Guy L. Steele heads the Sun Programming Language Research Group. He's held positions at Carnegie-Mellon University, Tartan Laboratories, and Thinking Machines Corporation and is the author or co-author of several books on languages (Common Lisp, C, High Performance Fortran, the Java Language Specification) as well as "The Hacker's Dictionary" (also known on the Internet as the "Jargon File").

Bio
Guy L. Steele heads the Sun Programming Language Research Group. He's held positions at Carnegie-Mellon University, Tartan Laboratories, and Thinking Machines Corporation and is the author or co-author of several books on languages (Common Lisp, C, High Performance Fortran, the Java Language Specification) as well as "The Hacker's Dictionary" (also known on the Internet as the "Jargon File").

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this presentation, Lex Spoon discusses the Scala programming language. Topics covered include the origin of Scala, the philosophy behind Scala, the Scala feature set, Object-Oriented and Functional programming in Scala, examples of Scala code, writing DSLs, how Scala is converted into Java, Scala performance, Abstract Data Types, unapply, actors and partial functions.

Bio
Lex Spoon divides his time between two posts: he works at EPFL in Switzerland on the Scala team, and at IBM Research in New York on X10. He thus has a lot of recent experience with advanced programming languages that play nice with the existing Java world.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In this talk, Markus Völter illustrates how model-driven and aspect oriented software development help addressing the challenge of managing variability in product line engineering. Both the problem space and the solution space are described by models, using a model-to-model transformation to map problem space variability to solution space variability.

Bio
Markus Völter is as an independent consultant and coach for software technology and engineering, focusing on software architecture, middleware and model-driven software development. Markus is the author of several magazine articles, patterns and books on middleware and model-driven software development. He is a regular speaker at conferences world wide and can be reached via voelter.de.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Glenn Vanderburg makes the case for Javascript, a language long overlooked. This presentation from JAOO 2007 shows how its OOP model and other language features make it a very powerful tool and how to use these features to get the most out of the language.

Bio
Glenn Vanderburg is an independent consultant focused on cutting-edge software development technologies and techniques, including Ruby, JavaScript, Ajax, and state-of-the-art development practices.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
In DDD, the "ubiquitous language" is central, but it's richness and fluency is hard to render in the object-oriented medium. Domain-specific languages hold out the prospect of to express models and application logic in far better suited language. In this presentation, Eric Evans talks about how DDD and DSLs works together in complex business applications.

Bio
Eric Evans is a specialist in domain modeling and design in large business systems. Since the early 1990s, he has worked on many projects developing large business systems with objects and has been deeply involved in applying Agile processes on real projects. Eric is the author of "Domain-Driven Design" (Addison-Wesley, 2003) and he leads the consulting group Domain Language, Inc.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Attila Szegedi discusses the Rhino JavaScript engine. Topics covered include the implementation of Rhino, Rhino's featureset, continuations, usage patterns for embedding Rhino, running JavaScript on the server, scripting capabilities for Rhino, JavaScript versus Ruby, JavaScript on Rails, and future plans for Rhino.

Bio
Attila Szegedi is a Project admin and principal developer of FreeMarker, an open-source template engine in Java. He is also the current maintainer of Rhino, Mozilla's JavaScript interpreter for Java, and the founder of the Rhino in Spring, an integration of JavaScript engine with the Spring framework.

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Summary
Neal Ford talks about Mingle, Thoughtworks Studios' project management software. Mingle is written or JRuby - Neal explains the experience with building a product on JRuby, solutions to problems, and future plans for using JRuby in Mingle.

Bio
Neal Ford is an senior application architect at ThoughtWorks. His primary consulting focus is the building of large-scale enterprise applications. He is also an internationally acclaimed speaker, having spoken at numerous developers conferences worldwide. Check out his web site at www.nealford.com.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
Business users doing programming? Charles Simonyi and Henk Kolk presents how Intentional Software offers a radical new software approach that separates business knowledge from software engineering knowledge, which means that business experts can be more innovative and responsive to the changes in the domain.

Bio
Charles Simonyi is a co-founder of Intentional Software, a company that accelerates innovation by integrating the business domain experts into the software production process. Henk Kolk is the CTO of Capgemini's Financial Services Sector in the Netherlands. He is responsible for the implementation of Model Driven Architecture and Business Domain Languages.

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
How do you program a multicore computer? Easy - do it in Erlang. Erlang is a concurrent functional programming language designed for programming fault-tolerant systems. With share-nothing semantics and pure message passing, Erlang programs scales on multicore computers. In this talk, Joe introduces Erlang, the ideas of Concurrent Oriented Programming and commercial applications written in Erlang.

Bio
Joe Armstrong is the principle inventor of Erlang and coined the term "Concurrency Oriented Programming". At Ericsson he developed Erlang and was chief architect of the Erlang/OTP system. In 1998 he formed Bluetail, which developed all its products in Erlang. In 2003 he obtain his PhD from the Royal Institute of Technology, Stockholm. He is author of the book "Software for a concurrent world".

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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Summary
This presentation by Hamilton Verissimo and Oren Eini show Castle Active Record - an ORM solution for .NET building on NHibernate. After an introduction, the presentation dives into various advanced topics and techniques for working with Castle Active Record.

Bio
Hamilton Verissimo leads the Castle Project, an open source project for .Net, and runs Castle Stronghold, a software development company in Brazil. Oren Eini is a senior developer in We!, a consulting group based in Israel, focusing on architecture, data access and best practices. He has a blog at http://www.ayende.com/Blog/

About the conference
JAOO is the premier European developer conference on software technology, methods and best practices. The conference presents in-depth presentations and tutorials by researchers, engineers and trend-setters in software engineering and technology.

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