Proceedings Of The 3rd Ph D Retreat Of The Hpi Research School On Service Oriented Systems Engineering

Author : Meinel, Christoph,Plattner, Hasso,Döllner, Jürgen
Publisher : Universitätsverlag Potsdam
Page : 218 pages
File Size : 48,5 Mb
Release : 2014-10-09
Category : Electronic
ISBN : 9783869562735

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Proceedings of the 7th Ph.D. Retreat of the HPI Research School on Service-oriented Systems Engineering by Meinel, Christoph,Plattner, Hasso,Döllner, Jürgen Pdf

Design and Implementation of service-oriented architectures imposes a huge number of research questions from the fields of software engineering, system analysis and modeling, adaptability, and application integration. Component orientation and web services are two approaches for design and realization of complex web-based system. Both approaches allow for dynamic application adaptation as well as integration of enterprise application. Commonly used technologies, such as J2EE and .NET, form de facto standards for the realization of complex distributed systems. Evolution of component systems has lead to web services and service-based architectures. This has been manifested in a multitude of industry standards and initiatives such as XML, WSDL UDDI, SOAP, etc. All these achievements lead to a new and promising paradigm in IT systems engineering which proposes to design complex software solutions as collaboration of contractually defined software services. Service-Oriented Systems Engineering represents a symbiosis of best practices in object-orientation, component-based development, distributed computing, and business process management. It provides integration of business and IT concerns. The annual Ph.D. Retreat of the Research School provides each member the opportunity to present his/her current state of their research and to give an outline of a prospective Ph.D. thesis. Due to the interdisciplinary structure of the Research Scholl, this technical report covers a wide range of research topics. These include but are not limited to: Self-Adaptive Service-Oriented Systems, Operating System Support for Service-Oriented Systems, Architecture and Modeling of Service-Oriented Systems, Adaptive Process Management, Services Composition and Workflow Planning, Security Engineering of Service-Based IT Systems, Quantitative Analysis and Optimization of Service-Oriented Systems, Service-Oriented Systems in 3D Computer Graphics sowie Service-Oriented Geoinformatics.

Author : Meinel, Christoph ,Plattner, Hasso,Döllner, Jürgen,Weske, Mathias,Polze, Andreas,Hirschfeld, Robert,Naumann, Felix,Giese, Holger
Publisher : Universitätsverlag Potsdam
Page : 291 pages
File Size : 40,9 Mb
Release : 2009
Category : Computers
ISBN : 9783940793812

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Proceedings of the 3rd Ph.D. Retreat of the HPI Research School on Service-oriented Systems Engineering by Meinel, Christoph ,Plattner, Hasso,Döllner, Jürgen,Weske, Mathias,Polze, Andreas,Hirschfeld, Robert,Naumann, Felix,Giese, Holger Pdf

Design and Implementation of service-oriented architectures imposes a huge number of research questions from the fields of software engineering, system analysis and modeling, adaptability, and application integration. Component orientation and web services are two approaches for design and realization of complex web-based system. Both approaches allow for dynamic application adaptation as well as integration of enterprise application. Commonly used technologies, such as J2EE and .NET, form de facto standards for the realization of complex distributed systems. Evolution of component systems has lead to web services and service-based architectures. This has been manifested in a multitude of industry standards and initiatives such as XML, WSDL UDDI, SOAP, etc. All these achievements lead to a new and promising paradigm in IT systems engineering which proposes to design complex software solutions as collaboration of contractually defined software services. Service-Oriented Systems Engineering represents a symbiosis of best practices in object-orientation, component-based development, distributed computing, and business process management. It provides integration of business and IT concerns. The annual Ph.D. Retreat of the Research School provides each member the opportunity to present his/her current state of their research and to give an outline of a prospective Ph.D. thesis. Due to the interdisciplinary structure of the Research Scholl, this technical report covers a wide range of research topics. These include but are not limited to: Self-Adaptive Service-Oriented Systems, Operating System Support for Service-Oriented Systems, Architecture and Modeling of Service-Oriented Systems, Adaptive Process Management, Services Composition and Workflow Planning, Security Engineering of Service-Based IT Systems, Quantitative Analysis and Optimization of Service-Oriented Systems, Service-Oriented Systems in 3D Computer Graphics, as well as Service-Oriented Geoinformatics.

Author : Christoph Meinel,Hasso Plattner,Jürgen Döllner,Mathias Weske,Andreas Polze,Robert Hirschfeld,Felix Naumann,Holger Giese
Publisher : Universitätsverlag Potsdam
Page : 248 pages
File Size : 40,8 Mb
Release : 2010
Category : Computers
ISBN : 9783869560366

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Proceedings of the ... Ph. D. Retreat of the HPI Research School on Service-Oriented Systems Engineering by Christoph Meinel,Hasso Plattner,Jürgen Döllner,Mathias Weske,Andreas Polze,Robert Hirschfeld,Felix Naumann,Holger Giese Pdf

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Author : Meinel, Chistoph,Plattner, Hasso,Polze, Andreas
Publisher : Universitätsverlag Potsdam
Page : 238 pages
File Size : 41,7 Mb
Release : 2015
Category : Electronic
ISBN : 9783869563206

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Proceedings of the 8th Ph.D. retreat of the HPI research school on service-oriented systems engineering by Meinel, Chistoph,Plattner, Hasso,Polze, Andreas Pdf

Design and Implementation of service-oriented architectures imposes a huge number of research questions from the fields of software engineering, system analysis and modeling, adaptability, and application integration. Component orientation and web services are two approaches for design and realization of complex web-based system. Both approaches allow for dynamic application adaptation as well as integration of enterprise application. Commonly used technologies, such as J2EE and .NET, form de facto standards for the realization of complex distributed systems. Evolution of component systems has lead to web services and service-based architectures. This has been manifested in a multitude of industry standards and initiatives such as XML, WSDL UDDI, SOAP, etc. All these achievements lead to a new and promising paradigm in IT systems engineering which proposes to design complex software solutions as collaboration of contractually defined software services. Service-Oriented Systems Engineering represents a symbiosis of best practices in object-orientation, component-based development, distributed computing, and business process management. It provides integration of business and IT concerns. The annual Ph.D. Retreat of the Research School provides each member the opportunity to present his/her current state of their research and to give an outline of a prospective Ph.D. thesis. Due to the interdisciplinary structure of the Research Scholl, this technical report covers a wide range of research topics. These include but are not limited to: Self-Adaptive Service-Oriented Systems, Operating System Support for Service-Oriented Systems, Architecture and Modeling of Service-Oriented Systems, Adaptive Process Management, Services Composition and Workflow Planning, Security Engineering of Service-Based IT Systems, Quantitative Analysis and Optimization of Service-Oriented Systems, Service-Oriented Systems in 3D Computer Graphics sowie Service-Oriented Geoinformatics.

Author : Bram Adams,Michael Haupt, Daniel Lohmann
Publisher : Universitätsverlag Potsdam
Page : 56 pages
File Size : 45,8 Mb
Release : 2010
Category : Computers
ISBN : 9783869560434

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Proceedings of the 9th Workshop on Aspects, Components, and Patterns for Infrastructure Software (ACP4IS '10) by Bram Adams,Michael Haupt, Daniel Lohmann Pdf

Aspect-oriented programming, component models, and design patterns are modern and actively evolving techniques for improving the modularization of complex software. In particular, these techniques hold great promise for the development of "systems infrastructure" software, e.g., application servers, middleware, virtual machines, compilers, operating systems, and other software that provides general services for higher-level applications. The developers of infrastructure software are faced with increasing demands from application programmers needing higher-level support for application development. Meeting these demands requires careful use of software modularization techniques, since infrastructural concerns are notoriously hard to modularize. Aspects, components, and patterns provide very different means to deal with infrastructure software, but despite their differences, they have much in common. For instance, component models try to free the developer from the need to deal directly with services like security or transactions. These are primary examples of crosscutting concerns, and modularizing such concerns are the main target of aspect-oriented languages. Similarly, design patterns like Visitor and Interceptor facilitate the clean modularization of otherwise tangled concerns. Building on the ACP4IS meetings at AOSD 2002-2009, this workshop aims to provide a highly interactive forum for researchers and developers to discuss the application of and relationships between aspects, components, and patterns within modern infrastructure software. The goal is to put aspects, components, and patterns into a common reference frame and to build connections between the software engineering and systems communities.

Author : Sergey Smirnov,Hajo A. Reijers,Thijs Nugteren,Mathias Weske
Publisher : Universitätsverlag Potsdam
Page : 26 pages
File Size : 52,5 Mb
Release : 2010
Category : Computers
ISBN : 9783869560540

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Business Process Model Abstraction by Sergey Smirnov,Hajo A. Reijers,Thijs Nugteren,Mathias Weske Pdf

Business process management aims at capturing, understanding, and improving work in organizations. The central artifacts are process models, which serve different purposes. Detailed process models are used to analyze concrete working procedures, while high-level models show, for instance, handovers between departments. To provide different views on process models, business process model abstraction has emerged. While several approaches have been proposed, a number of abstraction use case that are both relevant for industry and scientifically challenging are yet to be addressed. In this paper we systematically develop, classify, and consolidate different use cases for business process model abstraction. The reported work is based on a study with BPM users in the health insurance sector and validated with a BPM consultancy company and a large BPM vendor. The identified fifteen abstraction use cases reflect the industry demand. The related work on business process model abstraction is evaluated against the use cases, which leads to a research agenda.

Author : Dominic Wist,Mark Schaefer,Walter Vogler,Ralf Wollowski
Publisher : Universitätsverlag Potsdam
Page : 40 pages
File Size : 51,8 Mb
Release : 2010
Category : Computers
ISBN : 9783869560373

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STG Decomposition: Internal Communication for SI Implementability by Dominic Wist,Mark Schaefer,Walter Vogler,Ralf Wollowski Pdf

STG decomposition is a promising approach to tackle the complexity problems arising in logic synthesis of speed independent circuits, a robust asynchronous (i.e. clockless) circuit type. Unfortunately, STG decomposition can result in components that in isolation have irreducible CSC conflicts. Generalising earlier work, it is shown how to resolve such conflicts by introducing internal communication between the components via structural techniques only.

Author : Basil Becker,Holger Giese,Stefan Neumann
Publisher : Universitätsverlag Potsdam
Page : 55 pages
File Size : 40,9 Mb
Release : 2009
Category : Electronic
ISBN : 9783940793911

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Correct Dynamic Service Oriented Architectures by Basil Becker,Holger Giese,Stefan Neumann Pdf

Author : Jana Bauckmann,Ulf Leser,Felix Naumann
Publisher : Universitätsverlag Potsdam
Page : 46 pages
File Size : 40,5 Mb
Release : 2010
Category : Computers
ISBN : 9783869560489

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Efficient and Exact Computation of Inclusion Dependencies for Data Integration by Jana Bauckmann,Ulf Leser,Felix Naumann Pdf

Data obtained from foreign data sources often come with only superficial structural information, such as relation names and attribute names. Other types of metadata that are important for effective integration and meaningful querying of such data sets are missing. In particular, relationships among attributes, such as foreign keys, are crucial metadata for understanding the structure of an unknown database. The discovery of such relationships is difficult, because in principle for each pair of attributes in the database each pair of data values must be compared. A precondition for a foreign key is an inclusion dependency (IND) between the key and the foreign key attributes. We present with Spider an algorithm that efficiently finds all INDs in a given relational database. It leverages the sorting facilities of DBMS but performs the actual comparisons outside of the database to save computation. Spider analyzes very large databases up to an order of magnitude faster than previous approaches. We also evaluate in detail the effectiveness of several heuristics to reduce the number of necessary comparisons. Furthermore, we generalize Spider to find composite INDs covering multiple attributes, and partial INDs, which are true INDs for all but a certain number of values. This last type is particularly relevant when integrating dirty data as is often the case in the life sciences domain - our driving motivation.

Author : Meinel, Christoph,Plattner, Hasso,Döllner, Jürgen,Weske, Mathias,Polze, Andreas,Hirschfeld, Robert,Naumann, Felix,Giese, Holger,Baudisch, Patrick,Friedrich, Tobias
Publisher : Universitätsverlag Potsdam
Page : 266 pages
File Size : 55,7 Mb
Release : 2017-03-23
Category : Computers
ISBN : 9783869563459

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Proceedings of the 9th Ph.D. retreat of the HPI Research School on service-oriented systems engineering by Meinel, Christoph,Plattner, Hasso,Döllner, Jürgen,Weske, Mathias,Polze, Andreas,Hirschfeld, Robert,Naumann, Felix,Giese, Holger,Baudisch, Patrick,Friedrich, Tobias Pdf

Design and implementation of service-oriented architectures impose numerous research questions from the fields of software engineering, system analysis and modeling, adaptability, and application integration. Service-oriented Systems Engineering represents a symbiosis of best practices in object orientation, component-based development, distributed computing, and business process management. It provides integration of business and IT concerns. Service-oriented Systems Engineering denotes a current research topic in the field of IT-Systems Engineering with high potential in academic research and industrial application. The annual Ph.D. Retreat of the Research School provides all members the opportunity to present the current state of their research and to give an outline of prospective Ph.D. projects. Due to the interdisciplinary structure of the Research School, this technical report covers a wide range of research topics. These include but are not limited to: Human Computer Interaction and Computer Vision as Service; Service-oriented Geovisualization Systems; Algorithm Engineering for Service-oriented Systems; Modeling and Verification of Self-adaptive Service-oriented Systems; Tools and Methods for Software Engineering in Service-oriented Systems; Security Engineering of Service-based IT Systems; Service-oriented Information Systems; Evolutionary Transition of Enterprise Applications to Service Orientation; Operating System Abstractions for Service-oriented Computing; and Services Specification, Composition, and Enactment.

Author : Meinel, Christoph,Plattner, Hasso,Döllner, Jürgen,Weske, Mathias,Polze, Andreas,Hirschfeld, Robert,Naumann, Felix,Giese, Holger,Baudisch, Patrick
Publisher : Universitätsverlag Potsdam
Page : 248 pages
File Size : 42,5 Mb
Release : 2013
Category : Electronic
ISBN : 9783869562568

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Proceedings of the 6th Ph.D. Retreat of the HPI Research School on Service-oriented Systems Engineering by Meinel, Christoph,Plattner, Hasso,Döllner, Jürgen,Weske, Mathias,Polze, Andreas,Hirschfeld, Robert,Naumann, Felix,Giese, Holger,Baudisch, Patrick Pdf

Author : Felix Geller,Robert Hirschfeld,Gilad Bracha
Publisher : Universitätsverlag Potsdam
Page : 100 pages
File Size : 55,6 Mb
Release : 2010
Category : Computers
ISBN : 9783869560656

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Pattern Matching for an Object-oriented and Dynamically Typed Programming Language by Felix Geller,Robert Hirschfeld,Gilad Bracha Pdf

Pattern matching is a well-established concept in the functional programming community. It provides the means for concisely identifying and destructuring values of interest. This enables a clean separation of data structures and respective functionality, as well as dispatching functionality based on more than a single value. Unfortunately, expressive pattern matching facilities are seldomly incorporated in present object-oriented programming languages. We present a seamless integration of pattern matching facilities in an object-oriented and dynamically typed programming language: Newspeak. We describe language extensions to improve the practicability and integrate our additions with the existing programming environment for Newspeak. This report is based on the first author’s master’s thesis.

Author : Sergey Smirnov,Weidlich, Matthias,Mendling, Jan ,Weske, Mathias
Publisher : Universitätsverlag Potsdam
Page : 24 pages
File Size : 51,7 Mb
Release : 2009
Category : Computers
ISBN : 9783869560090

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Action Patterns in Business Process Models by Sergey Smirnov,Weidlich, Matthias,Mendling, Jan ,Weske, Mathias Pdf

Business process management experiences a large uptake by the industry, and process models play an important role in the analysis and improvement of processes. While an increasing number of staff becomes involved in actual modeling practice, it is crucial to assure model quality and homogeneity along with providing suitable aids for creating models. In this paper we consider the problem of offering recommendations to the user during the act of modeling. Our key contribution is a concept for defining and identifying so-called action patterns - chunks of actions often appearing together in business processes. In particular, we specify action patterns and demonstrate how they can be identified from existing process model repositories using association rule mining techniques. Action patterns can then be used to suggest additional actions for a process model. Our approach is challenged by applying it to the collection of process models from the SAP Reference Model.

Author : Holger Giese,Stefan Hildebrandt,Leen Lambers
Publisher : Universitätsverlag Potsdam
Page : 34 pages
File Size : 50,7 Mb
Release : 2010
Category : Computers
ISBN : 9783869560786

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Toward Bridging the Gap Between Formal Semantics and Implementation of Triple Graph Grammars by Holger Giese,Stefan Hildebrandt,Leen Lambers Pdf

The correctness of model transformations is a crucial element for the model-driven engineering of high quality software. A prerequisite to verify model transformations at the level of the model transformation specification is that an unambiguous formal semantics exists and that the employed implementation of the model transformation language adheres to this semantics. However, for existing relational model transformation approaches it is usually not really clear under which constraints particular implementations are really conform to the formal semantics. In this paper, we will bridge this gap for the formal semantics of triple graph grammars (TGG) and an existing efficient implementation. Whereas the formal semantics assumes backtracking and ignores non-determinism, practical implementations do not support backtracking, require rule sets that ensure determinism, and include further optimizations. Therefore, we capture how the considered TGG implementation realizes the transformation by means of operational rules, define required criteria and show conformance to the formal semantics if these criteria are fulfilled. We further outline how static analysis can be employed to guarantee these criteria.

Author : Dustin Lange,Christoph Böhm,Felix Naumann
Publisher : Universitätsverlag Potsdam
Page : 32 pages
File Size : 40,5 Mb
Release : 2010
Category : Computers
ISBN : 9783869560816

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Extracting Structured Information from Wikipedia Articles to Populate Infoboxes by Dustin Lange,Christoph Böhm,Felix Naumann Pdf

Roughly every third Wikipedia article contains an infobox - a table that displays important facts about the subject in attribute-value form. The schema of an infobox, i.e., the attributes that can be expressed for a concept, is defined by an infobox template. Often, authors do not specify all template attributes, resulting in incomplete infoboxes. With iPopulator, we introduce a system that automatically populates infoboxes of Wikipedia articles by extracting attribute values from the article's text. In contrast to prior work, iPopulator detects and exploits the structure of attribute values for independently extracting value parts. We have tested iPopulator on the entire set of infobox templates and provide a detailed analysis of its effectiveness. For instance, we achieve an average extraction precision of 91% for 1,727 distinct infobox template attributes.