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Articles 1 - 6 of 6
Full-Text Articles in Computer Engineering
Service Oriented Solution Modeling And Variation Propagation Analysis Based On Architectural Building Blocks, Liang-Jie Zhang, Jia Zhang
Service Oriented Solution Modeling And Variation Propagation Analysis Based On Architectural Building Blocks, Liang-Jie Zhang, Jia Zhang
Jia Zhang
In spite of the widely recognized benefits of applying Service Oriented Architecture (SOA) to design enterprise-scale software systems, its actual application practice is not always a success. One major reason is the lack of a systematic engineering process and tool supported by reusable architectural artifacts. Toward this ultimate goal, this paper proposes a new method of architectural building blocks (ABB)-based SOA solution design and it is applicable to any layered or tiered infrastructure. We present the modeling of solution-level architectural artifacts and their relationships, whose formalization enables event-based variation notification and propagation analysis. The goal is to provide architecture-level support …
Sensor Data As A Service - A Federated Platform For Mobile Data-Centric Service Development And Sharing, Jia Zhang, Bob Iannucci, Mark Hennessy, Kaushik Gopal, Sean Xiao, Sumeet Kumar, David Pfeffer, Basmah Aljedia, Yuan Ren, Martin Griss, Steven Rosenberg, Jordan Cao, Anthony Rowe
Sensor Data As A Service - A Federated Platform For Mobile Data-Centric Service Development And Sharing, Jia Zhang, Bob Iannucci, Mark Hennessy, Kaushik Gopal, Sean Xiao, Sumeet Kumar, David Pfeffer, Basmah Aljedia, Yuan Ren, Martin Griss, Steven Rosenberg, Jordan Cao, Anthony Rowe
Jia Zhang
The Internet of Things (IoT) offers the promise of integrating the digital world of the Internet with the phys-ical world in which we live. But realizing this promise necessitates a systematic approach to integrating the sensors, actuators, and information on which they operate into the Internet we know today. This paper reports the design and development of an open community-oriented platform aiming to support federated sensor data as a service, featuring interoperability and reusability of heterogeneous sensor data and data services. The concepts of virtual sensors and virtual devices are identified as central autonomic units to model scalable and context-aware …
Bridging Vistrails Scientific Workflow Management System To High Performance Computing, Jia Zhang, Petr Votava, Tsengdar J. Lee, Owen Chu, Clyde Li, David Liu, Kate Liu, Norman Xin, Ramakrishna Nemani
Bridging Vistrails Scientific Workflow Management System To High Performance Computing, Jia Zhang, Petr Votava, Tsengdar J. Lee, Owen Chu, Clyde Li, David Liu, Kate Liu, Norman Xin, Ramakrishna Nemani
Jia Zhang
NASA Earth Exchange (NEX) is a collaboration platform whose goal is to accelerate Earth science research, by leveraging NASA’s vast collections of global satellite data together with access to NASA’s High-End Computing (HEC) facilities. NEX also aims to facilitate the sharing of experimental results as well as scientific processes (workflows) with the Earth science community through integration with VisTrails workflow management system. While VisTrails is used internally, it is not easily accessible from remote computers without directly logging into the NASA HEC systems through two-factor authentication and a bastion host. This paper describes the initial design of an extensible architecture …
A Technique Of Analyzing Trust Relationships To Facilitate Scientific Service Discovery And Recommendation, Jia Zhang, Petr Votava, Tsengdar J. Lee, Shrikant Adhikarla, Isaraporn Kulkumjon, Matthew Schlau, Divya Natesan, Ramakrishna Nemani
A Technique Of Analyzing Trust Relationships To Facilitate Scientific Service Discovery And Recommendation, Jia Zhang, Petr Votava, Tsengdar J. Lee, Shrikant Adhikarla, Isaraporn Kulkumjon, Matthew Schlau, Divya Natesan, Ramakrishna Nemani
Jia Zhang
Most of the existing service discovery methods focus on finding candidate services based on functional and non-functional requirements. However, while the open science community engenders many similar scientific services, how to differentiate them remains a challenge. This paper proposes a trust model that leverages the implicit human factor to help quantify the trustworthiness of candidate services. A hierarchical Knowledge-Social-Trust (KST) network model is established to draw hidden information from various publication repositories (e.g., DBLP) and social networks (e.g., Twitter). As a proof of concept, a prototyping service has been developed to help scientists evaluate and visualize trust of services. The …
Technical Architecture Of Enabling Body Of Knowledge System For Effective Learning And Information Dissemination, Liang-Jie Zhang, Jia Zhang
Technical Architecture Of Enabling Body Of Knowledge System For Effective Learning And Information Dissemination, Liang-Jie Zhang, Jia Zhang
Jia Zhang
In the current era of knowledge explosion, many fields are witnessing a tremendous amount of research and practice reported on a regular basis. How to help people effectively and efficiently study state-of-the-art knowledge in a specific field has become an urgent task yet highly challenging. On top of the Internet as an unstructured knowledge base, this paper reports the design and development of a Body of Knowledge portal (BoK), which can be used as a novel learning environment. Leveraging the key technologies of services computing (Web 2.0, Web services and Service-Oriented Architecture), a BoK provides a uniform gateway for researchers …
A Unified Rgps-Based Approach Supporting Service-Oriented Process Customization, Jian Wang, Zaiwen Feng, Jia Zhang, Patrick C,K. Hung, Keqing He, Liang-Jie Zhang
A Unified Rgps-Based Approach Supporting Service-Oriented Process Customization, Jian Wang, Zaiwen Feng, Jia Zhang, Patrick C,K. Hung, Keqing He, Liang-Jie Zhang
Jia Zhang
Service-oriented process customization is a key issue in SaaS. In this chapter, based on the RGPS meta-model framework, we propose a service-oriented process customization approach that can help end-users configure a personalized mashup in design time. Corresponding visualization prototypes are introduced, and a case study illustrates how to follow our approach to customize a shipping mashup. Our approach depends on the quality of domain models to a large extent. If users’ requirements cannot be satisfied, their unmatched goals will be recorded, which will in turn contribute to the evolution of domain models. So our approach is an iterative method in …