University of Carthage

Displaying 1-23 of 23 results

  • White Papers // May 2013

    How Does Refactoring Affect Understandability of Business Process Models?

    Business process refactoring techniques have been often provided for business process manually modeled. Unfortunately, no many refactoring techniques lie in reversing business process models obtained from existing information systems, which need, even more, to be refactored. Hence, there is no strong empirical evidence on how the understandability of business process...

    Provided By University of Carthage

  • White Papers // May 2013

    Scaling Archived Social Media Data Analysis using a Hadoop Cloud

    The growing number of people using social media to communicate with their peers and document their personal everyday feelings and views is creating data on an epic scale. Such data provides the opportunity for social scientists to conduct ethnographical research through discourse and content analysis of social interactions, providing an...

    Provided By University of Carthage

  • White Papers // Feb 2013

    Improving Component-Based WebGIS Development by Adopting a Software Product Line Approach

    Development of Web-based Geographical Information Systems (WebGIS) is mainly done by Small Enterprises which usually employ Open Source Software (OSS) components. The number and complexity of requirements for these Information Systems has exploded during the last years due to the technological advances. In addition, enterprises working on WebGIS must carry...

    Provided By University of Carthage

  • White Papers // Jun 2012

    Quality-Driven Business Process Refactoring

    Appropriate description of business processes through standard notations has become one of the most important assets for organizations. Organizations must therefore deal with quality faults in business process models such as the lack of understandability and modifiability. These quality faults may be exacerbated if business process models are mined by...

    Provided By University of Carthage

  • White Papers // May 2012

    Security Analysis in the Migration to Cloud Environments

    Cloud computing is a new paradigm that combines several computing concepts and technologies of the Internet creating a platform for more agile and cost-effective business applications and IT infrastructure. The adoption of Cloud computing has been increasing for some time and the maturity of the market is steadily growing. Security...

    Provided By University of Carthage

  • White Papers // Mar 2012

    Quality Indicators for Business Process Models from a Gateway Complexity Perspective

    Quality assurance of business process models has been recognized as an important factor for modeling success at an enterprise level. Since quality of models might be subject to different interpretations, it should be addressed in the most objective way, by the application of measures. That said, however, assessment of measurement...

    Provided By University of Carthage

  • White Papers // Mar 2012

    BPEL-RF: A Formal Framework for BPEL Orchestrations Integrating Distributed Resources

    Software systems are gaining complexity and concurrency with the appearance of new computational paradigms such as Service-Oriented Computing (SOC), Grid Computing and Cloud Computing. Web service compositions are gaining attention to develop complex web systems by combination of existing services. Thus, there are many works that leverage the advantages of...

    Provided By University of Carthage

  • White Papers // Jan 2012

    A Coloured Petri Net Approach to Model and Analyse Stateful Workflows Based on WS-BPEL and WSRF

    Composite Web services technologies are widely used due to its ability to provide interoperability among services from different companies. Web services are usually stateless, which means that no state is stored from the client's viewpoint. However, some new applications and services have emerged, which require to capture the state of...

    Provided By University of Carthage

  • White Papers // Jun 2011

    A Novel Adaptive Resource Allocation Scheme With QoS Support in Mobile WiMAX Release 2 Wireless Networks

    This paper presents a new resource allocation algorithm in downlink Mobile WiMAX Release 2 networks. The authors' study considers three types of service including a real-time Polling Service (rtPS), a non-real-time Polling Service (nrtPS) and a Best Effort (BE) service. Each service type has its own QoS requirements (eg. radio...

    Provided By University of Carthage

  • White Papers // May 2011

    A Recommender System to Share Knowledge in Software Organizations

    Now-a-days knowledge management is a highly important issue for organizations since it helps to improve their competitive advantage. A means to encourage employees to manage knowledge is that of communities of practice in which employees can exchange knowledge and experience. However, members of these communities are often geographically distributed. This...

    Provided By University of Carthage

  • White Papers // Feb 2011

    Evaluation of SPL Approaches for WebGIS Development: SIGTel, a Case Study

    WebGIS development is currently based on the reuse of existing components. There has been an increase in both the number of new components available and the functions demanded by customers. There are also a larger number of firms working on the WebGIS domain so that competition is harder than ever....

    Provided By University of Carthage

  • White Papers // Feb 2011

    Secure Business Process Model Specification Through a UML 2.0 Activity Diagram Profile

    Business processes have become important resources, both for an enterprise's performance and to enable it to maintain its competitiveness. The languages used for business process representation have, in recent years, been improved and new notations have appeared. However, despite the wide acceptance of the importance of business process security, to...

    Provided By University of Carthage

  • White Papers // Feb 2011

    Building XenoBuntu Linux Distribution for Teaching and Prototyping Real-Time Operating Systems

    This paper describes the realization of a new Linux distribution based on Ubuntu Linux and Xenomai Real-Time framework. This realization is motivated by the eminent need of real-time systems in modern computer science courses. The majority of the technical choices are made after qualitative comparison. The main goal of this...

    Provided By University of Carthage

  • White Papers // Dec 2010

    State of the Art and Research Challenges of New Services Architecture Technologies: Virtualization, SOA and Cloud Computing

    The telecommunication world is evolving towards networks and different services. It is necessary to ensure interoperability between different networks to provide seamless and on-demand services. As the number of services and users in Internet Protocol Multimedia Subsystem (IMS) keeps increasing, network virtualization and cloud computing technologies seem to be a...

    Provided By University of Carthage

  • White Papers // Nov 2010

    Channel Estimation and Multiuser Detection in Asynchronous Satellite Communications

    In this paper, the authors propose a new method of channel estimation for asynchronous additive white Gaussian noise channels in satellite communications. This method is based on signals correlation and multiuser interference cancellation which adopts a successive structure. Propagation delays and signals amplitudes are jointly estimated in order to be...

    Provided By University of Carthage

  • White Papers // Aug 2010

    Resources Reservation Satisfying QoS Constraints for Ad Hoc Networks

    For the last several years, there has been a significant increase of interest in supporting Quality of Service (QoS) constraints in Mobile Ad Hoc Networks (AHNs). AHNs include mobile nodes with limited capacities and communication resources. This specificity makes existing solutions for wired networks little suitable and a broad range...

    Provided By University of Carthage

  • White Papers // Jul 2010

    A Model-Driven and Service-Oriented Framework for the Business Process Improvement

    Business Process Management (BPM) importance and benefits for organizations to focus on their business processes is nowadays broadly recognized, as business and technology areas are embracing and adopting the paradigm. The Service Oriented Computing (SOC) paradigm bases software development on services to realize business processes. The implementation of business processes...

    Provided By University of Carthage

  • White Papers // May 2010

    Tool Support for Service Oriented Development From Business Processes

    The integration of Business Process Management (BPM), Service Oriented Computing (SOC) and Model Driven Development (MDD) paradigms to improve the development of services oriented solutions from business models is nowadays in the spotlight. Organizations wanting to remain competitive despite the constant changes in their business are paying more attention to...

    Provided By University of Carthage

  • White Papers // Apr 2010

    Semi-Formal Transformation of Secure Business Processes into Analysis Class and Use Case Models: An MDA Approach

    Model-Driven Development (MDD) is an alternative approach for information systems development. The basic underlying concept of this approach is the definition of abstract models that can be transformed to obtain models near implementation. One fairly widespread proposal in this sphere is that of Model Driven Architecture (MDA). Business process models...

    Provided By University of Carthage

  • White Papers // Oct 2009

    2C-WSN: A Configuration Protocol Based on TDMA Communications Over WSN

    The deployment of large-scale Wireless Sensor Networks presents major challenges whose solution requires the design and development of robust and time-efficient protocols. In this paper, the authors focus on the design of an efficient and robust protocol aiming to rapidly configure highly populated networks. Their main effort goes towards the...

    Provided By University of Carthage

  • White Papers // Sep 2008

    Automatic Generation of Secure Multidimensional Code for Data Warehouses by Using QVT Transformations: An MDA Approach

    Data Warehouses manage vital information for the decision making process, which may be discovered by unauthorized users if the authors do not establish security measures in all the stages of the development process. They have proposed MDA architecture to develop secure Data Warehouses which allows them to be modeled at...

    Provided By University of Carthage

  • White Papers // Apr 2007

    Using QVT to Obtain Use Cases From Secure Business Processes Modeled with BPMN

    Now-a-days, enterprises are aware of the importance that business processes and security have in relation to their competitive position and performance. In this paper, the authors have proposed a BPMN extension which allows the user to capture security requirements from the business analyst's perspective. In this paper, they will show...

    Provided By University of Carthage

  • White Papers // Sep 2006

    Applying Software Process Metrics in Business Process Model

    In this paper, the authors define a set of metrics for the evaluation of business process models. The proposal is based on the FMESP framework, which aims to integrate the modeling and measurement of software processes. FMESP includes a set of metrics to provide the quantitative basis necessary to know...

    Provided By University of Carthage

  • White Papers // Oct 2009

    2C-WSN: A Configuration Protocol Based on TDMA Communications Over WSN

    The deployment of large-scale Wireless Sensor Networks presents major challenges whose solution requires the design and development of robust and time-efficient protocols. In this paper, the authors focus on the design of an efficient and robust protocol aiming to rapidly configure highly populated networks. Their main effort goes towards the...

    Provided By University of Carthage

  • White Papers // May 2011

    A Recommender System to Share Knowledge in Software Organizations

    Now-a-days knowledge management is a highly important issue for organizations since it helps to improve their competitive advantage. A means to encourage employees to manage knowledge is that of communities of practice in which employees can exchange knowledge and experience. However, members of these communities are often geographically distributed. This...

    Provided By University of Carthage

  • White Papers // Mar 2012

    Quality Indicators for Business Process Models from a Gateway Complexity Perspective

    Quality assurance of business process models has been recognized as an important factor for modeling success at an enterprise level. Since quality of models might be subject to different interpretations, it should be addressed in the most objective way, by the application of measures. That said, however, assessment of measurement...

    Provided By University of Carthage

  • White Papers // Feb 2011

    Building XenoBuntu Linux Distribution for Teaching and Prototyping Real-Time Operating Systems

    This paper describes the realization of a new Linux distribution based on Ubuntu Linux and Xenomai Real-Time framework. This realization is motivated by the eminent need of real-time systems in modern computer science courses. The majority of the technical choices are made after qualitative comparison. The main goal of this...

    Provided By University of Carthage

  • White Papers // Nov 2010

    Channel Estimation and Multiuser Detection in Asynchronous Satellite Communications

    In this paper, the authors propose a new method of channel estimation for asynchronous additive white Gaussian noise channels in satellite communications. This method is based on signals correlation and multiuser interference cancellation which adopts a successive structure. Propagation delays and signals amplitudes are jointly estimated in order to be...

    Provided By University of Carthage

  • White Papers // Aug 2010

    Resources Reservation Satisfying QoS Constraints for Ad Hoc Networks

    For the last several years, there has been a significant increase of interest in supporting Quality of Service (QoS) constraints in Mobile Ad Hoc Networks (AHNs). AHNs include mobile nodes with limited capacities and communication resources. This specificity makes existing solutions for wired networks little suitable and a broad range...

    Provided By University of Carthage

  • White Papers // Dec 2010

    State of the Art and Research Challenges of New Services Architecture Technologies: Virtualization, SOA and Cloud Computing

    The telecommunication world is evolving towards networks and different services. It is necessary to ensure interoperability between different networks to provide seamless and on-demand services. As the number of services and users in Internet Protocol Multimedia Subsystem (IMS) keeps increasing, network virtualization and cloud computing technologies seem to be a...

    Provided By University of Carthage

  • White Papers // Jun 2011

    A Novel Adaptive Resource Allocation Scheme With QoS Support in Mobile WiMAX Release 2 Wireless Networks

    This paper presents a new resource allocation algorithm in downlink Mobile WiMAX Release 2 networks. The authors' study considers three types of service including a real-time Polling Service (rtPS), a non-real-time Polling Service (nrtPS) and a Best Effort (BE) service. Each service type has its own QoS requirements (eg. radio...

    Provided By University of Carthage

  • White Papers // May 2012

    Security Analysis in the Migration to Cloud Environments

    Cloud computing is a new paradigm that combines several computing concepts and technologies of the Internet creating a platform for more agile and cost-effective business applications and IT infrastructure. The adoption of Cloud computing has been increasing for some time and the maturity of the market is steadily growing. Security...

    Provided By University of Carthage

  • White Papers // Feb 2011

    Evaluation of SPL Approaches for WebGIS Development: SIGTel, a Case Study

    WebGIS development is currently based on the reuse of existing components. There has been an increase in both the number of new components available and the functions demanded by customers. There are also a larger number of firms working on the WebGIS domain so that competition is harder than ever....

    Provided By University of Carthage

  • White Papers // Feb 2013

    Improving Component-Based WebGIS Development by Adopting a Software Product Line Approach

    Development of Web-based Geographical Information Systems (WebGIS) is mainly done by Small Enterprises which usually employ Open Source Software (OSS) components. The number and complexity of requirements for these Information Systems has exploded during the last years due to the technological advances. In addition, enterprises working on WebGIS must carry...

    Provided By University of Carthage

  • White Papers // Sep 2008

    Automatic Generation of Secure Multidimensional Code for Data Warehouses by Using QVT Transformations: An MDA Approach

    Data Warehouses manage vital information for the decision making process, which may be discovered by unauthorized users if the authors do not establish security measures in all the stages of the development process. They have proposed MDA architecture to develop secure Data Warehouses which allows them to be modeled at...

    Provided By University of Carthage

  • White Papers // Jul 2010

    A Model-Driven and Service-Oriented Framework for the Business Process Improvement

    Business Process Management (BPM) importance and benefits for organizations to focus on their business processes is nowadays broadly recognized, as business and technology areas are embracing and adopting the paradigm. The Service Oriented Computing (SOC) paradigm bases software development on services to realize business processes. The implementation of business processes...

    Provided By University of Carthage

  • White Papers // Sep 2006

    Applying Software Process Metrics in Business Process Model

    In this paper, the authors define a set of metrics for the evaluation of business process models. The proposal is based on the FMESP framework, which aims to integrate the modeling and measurement of software processes. FMESP includes a set of metrics to provide the quantitative basis necessary to know...

    Provided By University of Carthage

  • White Papers // Apr 2010

    Semi-Formal Transformation of Secure Business Processes into Analysis Class and Use Case Models: An MDA Approach

    Model-Driven Development (MDD) is an alternative approach for information systems development. The basic underlying concept of this approach is the definition of abstract models that can be transformed to obtain models near implementation. One fairly widespread proposal in this sphere is that of Model Driven Architecture (MDA). Business process models...

    Provided By University of Carthage

  • White Papers // May 2013

    How Does Refactoring Affect Understandability of Business Process Models?

    Business process refactoring techniques have been often provided for business process manually modeled. Unfortunately, no many refactoring techniques lie in reversing business process models obtained from existing information systems, which need, even more, to be refactored. Hence, there is no strong empirical evidence on how the understandability of business process...

    Provided By University of Carthage

  • White Papers // Apr 2007

    Using QVT to Obtain Use Cases From Secure Business Processes Modeled with BPMN

    Now-a-days, enterprises are aware of the importance that business processes and security have in relation to their competitive position and performance. In this paper, the authors have proposed a BPMN extension which allows the user to capture security requirements from the business analyst's perspective. In this paper, they will show...

    Provided By University of Carthage

  • White Papers // May 2013

    Scaling Archived Social Media Data Analysis using a Hadoop Cloud

    The growing number of people using social media to communicate with their peers and document their personal everyday feelings and views is creating data on an epic scale. Such data provides the opportunity for social scientists to conduct ethnographical research through discourse and content analysis of social interactions, providing an...

    Provided By University of Carthage

  • White Papers // Jan 2012

    A Coloured Petri Net Approach to Model and Analyse Stateful Workflows Based on WS-BPEL and WSRF

    Composite Web services technologies are widely used due to its ability to provide interoperability among services from different companies. Web services are usually stateless, which means that no state is stored from the client's viewpoint. However, some new applications and services have emerged, which require to capture the state of...

    Provided By University of Carthage

  • White Papers // Mar 2012

    BPEL-RF: A Formal Framework for BPEL Orchestrations Integrating Distributed Resources

    Software systems are gaining complexity and concurrency with the appearance of new computational paradigms such as Service-Oriented Computing (SOC), Grid Computing and Cloud Computing. Web service compositions are gaining attention to develop complex web systems by combination of existing services. Thus, there are many works that leverage the advantages of...

    Provided By University of Carthage

  • White Papers // May 2010

    Tool Support for Service Oriented Development From Business Processes

    The integration of Business Process Management (BPM), Service Oriented Computing (SOC) and Model Driven Development (MDD) paradigms to improve the development of services oriented solutions from business models is nowadays in the spotlight. Organizations wanting to remain competitive despite the constant changes in their business are paying more attention to...

    Provided By University of Carthage

  • White Papers // Feb 2011

    Secure Business Process Model Specification Through a UML 2.0 Activity Diagram Profile

    Business processes have become important resources, both for an enterprise's performance and to enable it to maintain its competitiveness. The languages used for business process representation have, in recent years, been improved and new notations have appeared. However, despite the wide acceptance of the importance of business process security, to...

    Provided By University of Carthage

  • White Papers // Jun 2012

    Quality-Driven Business Process Refactoring

    Appropriate description of business processes through standard notations has become one of the most important assets for organizations. Organizations must therefore deal with quality faults in business process models such as the lack of understandability and modifiability. These quality faults may be exacerbated if business process models are mined by...

    Provided By University of Carthage