This book constitutes the refereed proceedings of the 9th International Conference on Web Engineering, ICWE 2009, held in San Sebastian, Spain in June 2009. The 22 revised full papers and 15 revised short papers presented together with 8 posters and 10 demonstration papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on accessibility and usability, component-based web engineering: portals and mashups, data and semantics, model-driven web engineering, navigation, process, planning and phases, quality, rich internet applications, search, testing, web services, SOA and REST, and web 2.0.

This book constitutes the refereed proceedings of the 9th International Conference on Web Engineering, ICWE 2009, held in San Sebastian, Spain in June 2009. The 22 revised full papers and 15 revised short papers presented together with 8 posters and 10 demonstration papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on accessibility and usability, component-based web engineering: portals and mashups, data and semantics, model-driven web engineering, navigation, process, planning and phases, quality, rich internet applications, search, testing, web services, SOA and REST, and web 2.0.

ICOODB 2009 was the second in a series of international conferences aimed at promoting the exchange of information and ideas between members of the objectdatabasecommunity. A keyfeatureof the conferencewasits goalto bring together developers, users and researchers. The conference had three di?erent trackso?eredasatutorialday,anindustrydayandaresearchday. Inaddition,a demo sessionwithcontributionsfromallthree communities enabledparticipants to see the latest and on-going developments in object database technologies, supporting tools and also applications. The conference proceedings presented as this volume consist of the papers presentedintheresearchtrack. Bypublishing theseaftertheconference,authors were given an opportunity to revise and extend their papers based on feedback and discussions held during the conference. Six of the papers were selected from submissions based on reviews by at least three members of the Program C- mittee. These papers address a number of classic database issues such as query processing, transaction processing, event models and the coupling of data and services in the context of modern object databases.In addition, the research track included three invited presentations from researchers who were leaders in the ?eld during what might be called the ?rst generation of object databases back in the 1980s and early 1990s. At this time, research in object data models as well as object-oriented databases and p- sistent programming languages was very active. Over the years, this research became less fashionable and many researchers moved into other ?elds. However, somecontinuedand astechnologiesandmarketsevolvedso did their models and systems.

This book constitutes the thoroughly refereed post-workshop proceedings and the doctoral symposium of the 12th International Conference on Web Engineering, ICWE 2012, held in Berlin, Germany, in July 2012.The volume contains four workshops and a doctoral consortium, each focusing on specific research issues that contribute to the main themes  of the ICWE conference: MDWE 2012: Eighth International Workshop on Model-Driven and Agile Engineering for the Web,  ComposableWeb 2012: Fourth International Workshop on Lightweight Integration on the Web,  WeRE 2012: Third Workshop on the Web and Requirements Engineering,  QWE 2012: Third International Workshop on Quality in Web Engineering.

This book constitutes the refereed proceedings of the 9th International Conference on Web Engineering, ICWE 2009, held in San Sebastian, Spain in June 2009. The 22 revised full papers and 15 revised short papers presented together with 8 posters and 10 demonstration papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on accessibility and usability, component-based web engineering: portals and mashups, data and semantics, model-driven web engineering, navigation, process, planning and phases, quality, rich internet applications, search, testing, web services, SOA and REST, and web 2.0.

This book constitutes the refereed proceedings of the 9th International Conference on Web Engineering, ICWE 2009, held in San Sebastian, Spain in June 2009. The 22 revised full papers and 15 revised short papers presented together with 8 posters and 10 demonstration papers were carefully reviewed and selected from 90 submissions. The papers are organized in topical sections on accessibility and usability, component-based web engineering: portals and mashups, data and semantics, model-driven web engineering, navigation, process, planning and phases, quality, rich internet applications, search, testing, web services, SOA and REST, and web 2.0.

ICOODB 2009 was the second in a series of international conferences aimed at promoting the exchange of information and ideas between members of the objectdatabasecommunity. A keyfeatureof the conferencewasits goalto bring together developers, users and researchers. The conference had three di?erent trackso?eredasatutorialday,anindustrydayandaresearchday. Inaddition,a demo sessionwithcontributionsfromallthree communities enabledparticipants to see the latest and on-going developments in object database technologies, supporting tools and also applications. The conference proceedings presented as this volume consist of the papers presentedintheresearchtrack. Bypublishing theseaftertheconference,authors were given an opportunity to revise and extend their papers based on feedback and discussions held during the conference. Six of the papers were selected from submissions based on reviews by at least three members of the Program C- mittee. These papers address a number of classic database issues such as query processing, transaction processing, event models and the coupling of data and services in the context of modern object databases.In addition, the research track included three invited presentations from researchers who were leaders in the ?eld during what might be called the ?rst generation of object databases back in the 1980s and early 1990s. At this time, research in object data models as well as object-oriented databases and p- sistent programming languages was very active. Over the years, this research became less fashionable and many researchers moved into other ?elds. However, somecontinuedand astechnologiesandmarketsevolvedso did their models and systems.

This book constitutes the thoroughly refereed post-workshop proceedings and the doctoral symposium of the 12th International Conference on Web Engineering, ICWE 2012, held in Berlin, Germany, in July 2012.The volume contains four workshops and a doctoral consortium, each focusing on specific research issues that contribute to the main themes  of the ICWE conference: MDWE 2012: Eighth International Workshop on Model-Driven and Agile Engineering for the Web,  ComposableWeb 2012: Fourth International Workshop on Lightweight Integration on the Web,  WeRE 2012: Third Workshop on the Web and Requirements Engineering,  QWE 2012: Third International Workshop on Quality in Web Engineering.