A SERVICE–ORIENTED ARCHITECTURE-BASED FRAMEWORK FOR E-PROCUREMENT

TABLE OF CONTENT
Table of Content
List of Tables
List of Figures

CHAPTER ONE: INTRODUCTION
1.1       Background Information
1.2       Statement of the Problem
1.3       Aim and Objectives of the Study
1.4       Methodology
1.5       Significance of the Study
1.6       Contribution to Knowledge
1.7       Limitations of the Study
1.8       Outline

CHAPTER TWO: LITERATURE REVIEW
2.1       What is E-procurement?
2.2       Review of Existing E-procurement System
2.2.1    Conventional E-procurement System
2.2.2    An Agent-Oriented and Knowledge-Based System for E-procurement
2.2.3    Government E-procurement System
2.2.4    Department for Administrative and Information Service
2.2.5    Web Service Interoperability Supply Chain Management System
2.2.6    Business-to-Business Interaction
2.2.7    B2B E-Commerce System Specification and Implementation Employing Use-case Diagrams, Digital signature and Xml
2.3       Interoperable Electronic Catalogue and Organisation E-procurement
2.4       Parties involved in procurement processes
2.5       Potential Benefits of E-procurement
2.6       Introduction to Service-Oriented Architecture (SOA)
2.6.1    SOA and E-Business
2.6.2    Collaboration between SOA Entities
2.6.3    Service Provider and Service Consumer
2.6.4    Characteristics of SOA
2.7       Web Services
2.7.1    Web Service Architecture
2.7.2    Web Service Technology
2.8       Web Services and B2B Collaboration
2.9       Challenges in Enterprise Adoption of Web Services
2.10     Web Service Technology for Private Exchange

CHAPTER THREE: REQUIREMENTS AND DESIGN
3.1       Requirements
3.2       The Proposed E-procurement Framework
3.3       System Design
3.3.1    Use Case Diagram
3.3.2    Class Structure of the E-Procurement Framework
3.3.3    Design Pattern of the E-Procurement Framework
3.3.4    Sequence Diagram
3.4       Database Design
3.4.1    Description of Tables

CHAPTER FOUR: IMPLEMENTATION
4.1       Introduction
4.2       Implementation Details
            4.2.1    Service Description
            4.2.2    Testing Web Service with a Remote Application
            4.2.3    Description of the Web Service Methods With Client Application Interaction

CHAPTER FIVE: CONCLUSION AND RECOMMENDATION
5.1       Summary
5.2       Conclusion
5.3       Future Work
References

CHAPTER ONE
INTRODUCTION
1.1         BACKGROUND INFORMATION
Purchasing of goods and services represents the single largest expense in most organisations. Corporate procurement process is a shared responsibility among business unit managers, employees and business partners. It requires strategic, timely information in order to maximize efficiency. Procurement is an inter-enterprise process conducted to achieve exchange of documents in order to effect the purchase of goods and services. Electronic procurement is the contractual business relationship referred to as Business-to-Business (B2B) collaboration between the buying and the selling organisations. E-procurement is integral to the overall development of the procurement process and involves the use of an electronic system(s) to acquire goods, works and services from third parties or business partners as well as to provide e-business capability for business units [1]. Among the challenges faced by most E-procurement systems is the ability to achieve application-to-application interaction between business partners software.



Service Oriented Architecture (SOA) is an architectural paradigm and a discipline that may be used to build infrastructures enabling those with needs (consumers) and those with capabilities (providers) to interact via services across disparate domains of technology and ownership. SOA is a software architecture that starts with an interface definition and builds the entire application topology as a topology of interfaces, interface implementations and interface calls [2]. Web services are simply one set of technologies that can be used to implement it successfully. SOA is a relationship of services and service consumers, both software modules are large enough to represent a complete business function. Services are software modules that are accessed by name via an interface, typically in a request-reply mode. Service consumers are software that embeds a service interface proxy (the client representation of the interface).

Web Services provide a distributed computing technology for revealing the business services of applications on the Internet or intranet using standard XML protocols and formats. The use of standard XML protocols makes Web Services to be platform, language, and vendor independent, and also an ideal candidate for use in Enterprise Application Integration (EAI) solutions.

Web Services help to eliminate the interoperability issues of existing EAI solutions, such as CORBA and DCOM, by leveraging open Internet standards - Web Services Description Language (WSDL - to describe), Universal Description, Discovery and Integration (UDDI - to advertise), and Simple Object Access Protocol (SOAP - to communicate).


1.2         STATEMENT OF THE PROBLEM

Achieving effective B2B collaboration requires inter-enterprise communication among business partners. Prominent challenges organisations face in achieving B2B collaboration in their E-procurement model include:

   Lack of standard application-to-application interaction between business partners software.

   Lack of transparency and uniformity in the procurement model of big organisations

   Inefficient purchasing decision as a result of insufficient market information.

   An organisation controlling both ends of the information exchange. Such includes organisations with Electronic Data Interchange (EDI) as electronic medium of exchange.


1.3         AIM AND OBJECTIVES OF THE STUDY

The aim of this work is to evolve a model of interoperable SOA-based E-procurement framework for multi-tiered business organisations.

The objectives are:

·         To identify the requirements for efficient B2B oriented E-procurement framework.

To evolve an SOA-based framework for E-procurement.

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Item Type: Postgraduate Material  |  Attribute: 65 pages  |  Chapters: 1-5
Format: MS Word  |  Price: N3,000  |  Delivery: Within 30Mins.
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