The Experts below are selected from a list of 12966 Experts worldwide ranked by ideXlab platform

Chia-chu Chiang - One of the best experts on this subject based on the ideXlab platform.

  • IRI - Software Stability in Software Reengineering
    2007 IEEE International Conference on Information Reuse and Integration, 2007
    Co-Authors: Chia-chu Chiang
    Abstract:

    Legacy systems won't evolve well in today's modern computing environments without Reengineering. Unfortunately, most Reengineering projects are only concerned about whether the systems can be seamlessly integrated into the environments and usually ignore the quality in the improvement of the legacy systems. We all agree that it would be better to observe both integration and quality improvement implemented in the Reengineering Process. Software stability makes this possible in the Reengineering Process so that the new systems can run in a heterogeneous computing environment but also be stable enough to reduce the maintenance costs and efforts. In this paper, a connection between the stability modeling and Reengineering Process for legacy system is described. A preliminary study on techniques for building a better stable system will be presented although the techniques are still not very promising yet. We will also discuss the issues and challenges of applying software stability into the legacy Reengineering Process.

  • ICSM - Leveraging software Reengineering systems for heterogeneous distributed computing environments
    Proceedings International Conference on Software Maintenance ICSM-94, 2000
    Co-Authors: Chia-chu Chiang
    Abstract:

    ASG's Existing Systems Workbench (ESW) is comprehensive, integrated tool set that supports the software Reengineering Process. These software Reengineering tools were originally developed for centralized environments. With the widespread use of object oriented and client server technologies, customers are expecting ESW to take advantage of these new technologies and also cooperate with their heterogeneous distributed computing environments. The article proposes a distributed object computing architecture for allowing ESW to operate in a heterogeneous distributed environment. The architecture was implemented with CORBA technology. The leverage of this new architecture enhances the product value and adapts the product to customer expectations.

Xiaohu Yang - One of the best experts on this subject based on the ideXlab platform.

  • SMC - Parallel iterative Reengineering model of legacy systems
    2009 IEEE International Conference on Systems Man and Cybernetics, 2009
    Co-Authors: Xiaohu Yang
    Abstract:

    Great improvements have been made in methodologies on Reengineering of legacy systems to enhance the migration Process. Unfortunately, taking into account the large scale of these systems, the duration of Reengineering Process can still be quite long which will make an impact on the business the systems supported. In this paper we propose a parallel iterative Reengineering model to reduce the Reengineering Process duration. The model uses the method of Formal Concept Analysis to Process the complex access relationship between legacy components and shared data. An algorithm named “Bottom-Up”, which consists of two parts, is introduced to build the parallel schedule for the Reengineering Process. This model shortens the Reengineering duration and has been proven to be successful in improving the transition system's performance in a comparative experiment.

  • SMC - Improved Iterative Object-Oriented Reengineering Process based on Dynamic Coupling Measures
    2006 IEEE International Conference on Systems Man and Cybernetics, 2006
    Co-Authors: Xiaohu Yang, Yongwei Ding
    Abstract:

    Reengineering from degenerated but in-use legacy systems to high-maintainable object-oriented (OO) software is becoming a hot research area in software engineering. The iterative Reengineering Process provide a gradually approach to replace the legacy system and satisfy the quality and functionally requirements. Meanwhile, based on the observed relationships between software coupling and external quality factors of OO system, a sophisticated and operable coupling measures framework is stated. This paper proposes an improved iterative reengineer Process for achieving a low-coupling and high-maintainable OO system using dynamic software coupling measures. As an enhancement, a formal dynamic coupling evaluation Process is discussed detailedly. Moreover, two possible methods are given for conducting software engineers to optimize reengineered system's external quality.

  • Using Formal Concept Analysis for Scheduling Legacy System Iterative Reengineering Process
    2006 International Conference on Machine Learning and Cybernetics, 2006
    Co-Authors: Xiaohu Yang
    Abstract:

    Iterative Reengineering Process is considered as an effective methodology to organize Reengineering projects on degenerated but in-use legacy systems. By replacing legacy components gradually, the functionalities and requirements of legacy system can be satisfied. In practice, scheduling legacy components and data in every iterative cycle correctly is a great challenge to project managers, because of the complexities of dependency relations between legacy components and data. Formal Concept Analysis (FCA), which has strong mathematical capability of Processing a group of elements with properties, is introduced to solve this issue. The major contribution of this paper is proposing an original Top-Down Schedule Algorithm (TDSA) based on FCA to compute an Iterative Cycle Reference Table (ICRT), which lists all potential cycles for an iterative Reengineering project. The computed iterative cycles can be performed in any order without stopping legacy system.

  • A Dual-Spiral Reengineering Model for Legacy System
    TENCON 2005 - 2005 IEEE Region 10 Conference, 2005
    Co-Authors: Xiaohu Yang, Lu Chen, Xinyu Wang, J. Cristoforo
    Abstract:

    Computer Technology has been in existence for many years; as time goes on there is an increasing number of outdated systems. Legacy system Reengineering has become a critical effort in many technology organizations. Several Reengineering models have been developed, such as the Byrne model and the evolutional model. These models have addressed some of the issues in the Reengineering Process, but other issues remain. This paper presents a dual-spiral Reengineering model, which performs as a cyclic approach, and addresses issues that those models do not, making the Reengineering Process more successful. This model has been successfully applied to a legacy financial software system Reengineering effort.

Manuel Ortega - One of the best experts on this subject based on the ideXlab platform.

  • Applying Task Modeling and Pattern-Based Techniques in Reengineering Processes for Mobile Learning User Interfaces: A Case Study
    Journal of Computers, 2007
    Co-Authors: Ana I. Molina, Miguel A. Redondo, Manuel Ortega
    Abstract:

    In the last years there has been a high production of groupware systems. However, most of these systems have been based on the desktop metaphor. We propose a translation Process based on the use of the conceptual model (or, particularly, on the task model and the data model) of the original application. From this model and by means of a pattern-based Reengineering Process, we obtain mobile versions of the original systems. In this paper the user interface Reengineering Process is described and an example of the application of patterns for the evolution of a specific system, Domosim-TPC, is shown.

  • ICALT - Using Patterns in Reengineering Processes for Mobile Learning User Interfaces
    Sixth IEEE International Conference on Advanced Learning Technologies (ICALT'06), 1
    Co-Authors: Ana I. Molina, Miguel A. Redondo, Manuel Ortega
    Abstract:

    In the last years there has been a high production of groupware systems. However, most of these systems have been based on the desktop metaphor. We propose a translation Process based on the use of the conceptual model (or, particularly, on the task model and the data model) of the original application. From this model and by means of a pattern-based Reengineering Process, we obtain mobile versions of the original systems. In this paper the user interface Reengineering Process is described and an example of the application of patterns for the evolution of a specific system, Domosim-TPC, is shown.

Giuseppe Visaggio - One of the best experts on this subject based on the ideXlab platform.

  • Iterative Reengineering of legacy systems
    IEEE Transactions on Software Engineering, 2003
    Co-Authors: Alessandro Bianchi, Danilo Caivano, V. Marengo, Giuseppe Visaggio
    Abstract:

    During its life, a legacy system is subjected to many maintenance activities, which cause degradation of the quality of the system: When this degradation exceeds a critical threshold, the legacy system needs to be reengineered. In order to preserve the asset represented by the legacy system, the familiarity with it gained by the system's maintainers and users, and the continuity of execution of current operations during the Reengineering Process, the system needs to be reengineered gradually. Moreover, each program needs to be reengineered within a short period of time. The paper proposes a Reengineering Process model, which is applied to an in-use legacy system to confirm that the Process satisfies previous requirements and to measure its effectiveness. The reengineered system replaced the legacy one to the satisfaction of all the stakeholders; the Reengineering Process also had a satisfactory impact on the quality of the system. Finally, this paper contributes to validate the cause-effect relationship between the Reengineering Process and overcoming the aging symptoms of a software system.

  • Software salvaging and the call dominance tree
    Journal of Systems and Software, 1995
    Co-Authors: A. Cimitile, Giuseppe Visaggio
    Abstract:

    Abstract The main goal of reuse Reengineering Processes for existing software is to obtain reusable software modules by clustering old software components that implement functional or data abstractions. The first problem to solve in the functional abstraction is how to search old software for components that may constitute a module. This article proposes candidature criteria founded on the dominance relation between the nodes of a call-directed graph. The proposed criteria have been adopted in a real-life reuse Reengineering Process on PASCAL software.

Fernando Sánchez-figueroa - One of the best experts on this subject based on the ideXlab platform.

  • ICWE - Re-engineering legacy web applications into rich internet applications
    Lecture Notes in Computer Science, 2010
    Co-Authors: Roberto Rodríguez-echeverría, Marino Linaje, José María Conejero, Juan Carlos Preciado, Fernando Sánchez-figueroa
    Abstract:

    There is a current trend in the industry to migrate its traditional Web applications to Rich Internet Applications (RIAs). To face this migration, traditional Web methodologies are being extended with new RIA modeling primitives. However, this re-engineering Process is being figured out in an adhoc manner by introducing directly these new features in the models, crosscutting the old functionality and compromising the readability, reusability and maintainability of the whole system. With the aim of performing this Reengineering Process more systematic and less error prone we propose in this paper an approach based on separation of concerns applied to the specific case of WebML.