Gregor Hohpe

Bio: Gregor Hohpe is an academic researcher from Google. The author has contributed to research in topics: Enterprise integration & Mobile device. The author has an hindex of 5, co-authored 7 publications receiving 1939 citations.

Enterprise Integration Patterns: Designing, Building, and Deploying Messaging Solutions

Abstract: Would you like to use a consistent visual notation for drawing integration solutions? Look inside the front cover. Do you want to harness the power of asynchronous systems without getting caught in the pitfalls? See "Thinking Asynchronously" in the Introduction. Do you want to know which style of application integration is best for your purposes? See Chapter 2, Integration Styles. Do you want to learn techniques for processing messages concurrently? See Chapter 10, Competing Consumers and Message Dispatcher. Do you want to learn how you can track asynchronous messages as they flow across distributed systems? See Chapter 11, Message History and Message Store. Do you want to understand how a system designed using integration patterns can be implemented using Java Web services, .NET message queuing, and a TIBCO-based publish-subscribe architecture? See Chapter 9, Interlude: Composed Messaging.Utilizing years of practical experience, seasoned experts Gregor Hohpe and Bobby Woolf show how asynchronous messaging has proven to be the best strategy for enterprise integration success. However, building and deploying messaging solutions presents a number of problems for developers. Enterprise Integration Patterns provides an invaluable catalog of sixty-five patterns, with real-world solutions that demonstrate the formidable of messaging and help you to design effective messaging solutions for your enterprise.The authors also include examples covering a variety of different integration technologies, such as JMS, MSMQ, TIBCO ActiveEnterprise, Microsoft BizTalk, SOAP, and XSL. A case study describing a bond trading system illustrates the patterns in practice, and the book offers a look at emerging standards, as well as insights into what the future of enterprise integration might hold.This book provides a consistent vocabulary and visual notation framework to describe large-scale integration solutions across many technologies. It also explores in detail the advantages and limitations of asynchronous messaging architectures. The authors present practical advice on designing code that connects an application to a messaging system, and provide extensive information to help you determine when to send a message, how to route it to the proper destination, and how to monitor the health of a messaging system. If you want to know how to manage, monitor, and maintain a messaging system once it is in use, get this book. 0321200683B09122003

Enterprise Integration Patterns

Abstract: Integration of applications and business processes is a top priority for many enterprises today. Requirements for improved customer service or self-service, rapidly changing business environments and support for mergers and acquisitions are major drivers for increased integration between existing “stovepipe” systems. Very few new business applications are being developed or deployed without a major focus on integration, essentially making integratability a defining quality of enterprise applications.

A Decade of Enterprise Integration Patterns: A Conversation with the Authors

Abstract: Department editors Olaf Zimmerman and Cesare Pautasso interview Gregor Hohpe and Bobby Woolf, authors of Enterprise Integration Patterns. They discuss the book's impact, pattern language design, message-oriented middleware, integration technology's evolution, and the authors' future plans.

Advertisement conversion logging

Abstract: An advertisement distribution system can log advertisement conversions using Near Field Communication (“NFC”). An online advertisement may be served to a user in response to a query or at a website. In response to the user selecting the advertisement, a landing page is displayed to the user and information regarding the advertisement is stored for logging purposes. The landing page may instruct the user to check in with an NFC-enabled device at an NFC base station of a merchant. The NFC base station transmits information identifying the merchant to the user's device and, in turn, the user's device transmits the information to the advertisement distribution system. The advertisement distribution determines that the advertisement resulted in a conversion using information regarding the advertisement and the information identifying the merchant received from the NFC base station via the user's device.

System and Method for Graphically Enriching Promotional Messages Delivered to Handheld Communication Devices

Abstract: Graphically enriching a promotional message delivered to a mobile communication device is described. For example, a mobile content server may receive the promotional message to be delivered to the mobile communication device. The mobile content server may determine content included in the received promotional message and identify at least one graphic associated with the determined content. The identified graphic may convey the relevance of the promotional message. The mobile content server may generate a graphically-enriched promotional message that includes the determined content and the identified graphic and communicate the graphically-enriched promotional message to the mobile communication device.

A survey and comparison of peer-to-peer overlay network schemes

Abstract: Over the Internet today, computing and communications environments are significantly more complex and chaotic than classical distributed systems, lacking any centralized organization or hierarchical control. There has been much interest in emerging Peer-to-Peer (P2P) network overlays because they provide a good substrate for creating large-scale data sharing, content distribution, and application-level multicast applications. These P2P overlay networks attempt to provide a long list of features, such as: selection of nearby peers, redundant storage, efficient search/location of data items, data permanence or guarantees, hierarchical naming, trust and authentication, and anonymity. P2P networks potentially offer an efficient routing architecture that is self-organizing, massively scalable, and robust in the wide-area, combining fault tolerance, load balancing, and explicit notion of locality. In this article we present a survey and comparison of various Structured and Unstructured P2P overlay networks. We categorize the various schemes into these two groups in the design spectrum, and discuss the application-level network performance of each group.

Restful web services vs. "big"' web services: making the right architectural decision

Abstract: Recent technology trends in the Web Services (WS) domain indicate that a solution eliminating the presumed complexity of the WS-* standards may be in sight: advocates of REpresentational State Transfer (REST) have come to believe that their ideas explaining why the World Wide Web works are just as applicable to solve enterprise application integration problems and to simplify the plumbing required to build service-oriented architectures. In this paper we objectify the WS-* vs. REST debate by giving a quantitative technical comparison based on architectural principles and decisions. We show that the two approaches differ in the number of architectural decisions that must be made and in the number of available alternatives. This discrepancy between freedom-from-choice and freedom-of-choice explains the complexity difference perceived. However, we also show that there are significant differences in the consequences of certain decisions in terms of resulting development and maintenance costs. Our comparison helps technical decision makers to assess the two integration styles and technologies more objectively and select the one that best fits their needs: REST is well suited for basic, ad hoc integration scenarios, WS-* is more flexible and addresses advanced quality of service requirements commonly occurring in enterprise computing.

Business Process Management: A Comprehensive Survey

Abstract: Business Process Management (BPM) research resulted in a plethora of methods, techniques, and tools to support the design, enactment, management, and analysis of operational business processes. This survey aims to structure these results and provide an overview of the state-of-the-art in BPM. In BPM the concept of a process model is fundamental. Process models may be used to configure information systems, but may also be used to analyze, understand, and improve the processes they describe. Hence, the introduction of BPM technology has both managerial and technical ramifications and may enable significant productivity improvements, cost savings, and flow-time reductions. The practical relevance of BPM and rapid developments over the last decade justify a comprehensive survey.

Toward Secure and Dependable Storage Services in Cloud Computing

Abstract: Cloud storage enables users to remotely store their data and enjoy the on-demand high quality cloud applications without the burden of local hardware and software management. Though the benefits are clear, such a service is also relinquishing users' physical possession of their outsourced data, which inevitably poses new security risks toward the correctness of the data in cloud. In order to address this new problem and further achieve a secure and dependable cloud storage service, we propose in this paper a flexible distributed storage integrity auditing mechanism, utilizing the homomorphic token and distributed erasure-coded data. The proposed design allows users to audit the cloud storage with very lightweight communication and computation cost. The auditing result not only ensures strong cloud storage correctness guarantee, but also simultaneously achieves fast data error localization, i.e., the identification of misbehaving server. Considering the cloud data are dynamic in nature, the proposed design further supports secure and efficient dynamic operations on outsourced data, including block modification, deletion, and append. Analysis shows the proposed scheme is highly efficient and resilient against Byzantine failure, malicious data modification attack, and even server colluding attacks.