Web services introduction, application and its future ECLT5820 Project Specification – Group 8 WONG CHING CHEUNG Dennis (1155087307) TRAN CHON WAI (1155015125) Web services introduction, application and its future

Agenda

Agenda Introduction SOAP REST Comparison to Traditional Protocols Applications A Show Case Challenges Conclusion & Future

Introduction

Introduction A software system designed to support interoperable machine-to-machine interaction over a network

Introduction Originated at 1999 Ubiquitous nowadays

Why we need it Exposing the existing function on to network Connecting Different Applications Standardized Protocol

SOAP

SOAP Simple Object Access Protocol based on the internet and XML

SOAP

SOAP Heterogeneous Human-readable Low system requirement

REST

REST Representational State Transfer An architectural style

REST Resource identified in URI Represent as: JSON, XML, JPEG… State Transfer: POST, GET, PUT, DELETE

REST Client-Server Communication Cacheable Uniform Interface

Comparison with Traditional Protocols Web Services FTP MQ EDI Availability Medium-High Medium High Performance Reliability Low Scalability Manageability Cost Low-Medium Complexity

Applications Today A common systems-to-system communication protocols crossing different applications within an enterprise Popular in external communications (eCommerce, B2B) Most popular channel as of an API from enterprises Hub-spoke business model driving more usages IT infrastructure also a driving force

A Show Case – Payment Gateway

A Show Case – Payment Gateway

Challenges Lack of standardization Commercial decision rather than technical consideration Security concern – DDoS Attack?

Conclusion & Future A proven efficient operation system for system integration during its application for years Most preferred choice of API today More applications in different area to emerging .com & mobile app market

Q&A Thank you 