1 Matakuliah: Teknologi & Infrastruktur E-Business Tahun: 2005 Versi: >

Learning Objectives  List the components necessary for front-end and back-end of e-commerce transaction systems  Elicit the steps involved in establishing an e- commerce web site. 2

Components of E-commerce  Clients (with access to internet)  Internet  Routing devices at the boundary of the enterprise.  Extra devices to defend the perimeter against potential hackers.  Web server / commerce server  Application servers (in advanced systems)  Back-end transactional software (includes TP monitors, database management system and data warehouse). 3

TP monitor  A program that monitors a transaction as it passes from one stage in a process to another.  It ensures that a transaction is completed successfully, or roll-back occurs, partial transactions are prevented.  TP is important in three-tier architectures that employ load balancing.  TP coordinates ERP, SCM and CRM. 4

Web Browsers  Not all browsers support all web functionalities.  Originally Lynx was developed to display limited text.  Later, graphics was added.  Later iterations, a range of functionalities added, at the cost of computing resources and slower download. 5

Major players in the browser market  Microsoft Internet Explorer (I.E.) and Netscape Navigator.  I.E. is more integrated with desktop operating system (mainly Windows), which is also a Microsoft product.  Netscape did not have a new product release between 1998 and 2000 and lost the number one position, which it held only three years ago to I.E.  I.E now claims more than 3/4 th of the market.  Both are freely available for the end user. 6

Microsoft Internet Explorer  Browser for display of web pages.  NetMeeting for collaboration  FrontPage Express for building Web pages.  Outlook Express for fully functional .  Supports FTP, Gopher, NNTP, JavaScript, ActiveX controls etc.  Java applets can be executed in version 5.x  I.E. 6.0 strongly supports VBScript 7

Netscape Communicator  Netscape Navigator browser  Netscape Messenger (fully configurable client)  Netscape Composer (HTML editor)  Netscape Conference (for telephony interface)  Collabra discussion (for news groups)  Netcaster (for push technology)  Add-ins compatibility.  Java applets can be executed.  Netscape 6.x based on Mozilla (an open-source code) supports XML, though less stable. 8

Other Browsers - Opera software  Optimizes space and speed.  Strict adherence to HTML standards  Sophisticated and speedy web-browsing with news and  Secure 128-bit SSL encryption.  Ideal for older machines and mobile computing with less available memory or disk space.  Soon the BeOS, Linux and Mac versions will also be available.  Freely available for download (in advertising mode). 9

HotJava  Java web browser from SUN  has small requirements and is designed to work on a variety of devices.  Not widely used 10

Microbrowser  Wireless devices are constrained computing device with limited CPU, memory, battery life, and simple user interface;  wireless networks are restricted with low bandwith, high latency, and unpredictable availability and stability.  wireless subscribers have different needs and desires than desktop, or even laptop Internet users  WAP (Wireless Application Protocol) specification was developed to address the technical requirements and market issues unique to the wireless environment. 11

Microbrowser  e.g. OpenTV, 4thpass, Nokia, PIXO… 12

Mozilla  An open source project from Mozilla.org  A modular web browser, designed for standards compliance, performance and portability  Platform-independent  DocZilla- the latest project with enhanced support for XML and SGML by Finnish company CiTEC. 13