E-Commerce

Chapter 4 1. Name the six main pieces of the e-commerce site building puzzle. * Organizational Capabilities * Hardware Architecture * Software * Telecommunications * Site Design * Human Resources 2. Define the systems development life cycle and discuss the various step involved in creating an e-commerce site. * Methodology for understanding business objectives of a system and designing an appropriate solution 1. Systems analysis/planning 2. Systems design 3. Building the system 4. Testing 5. Implementation 3. Discuss the differences between a simple logical and simple physical Web site design. * Logical design: includes a data flow diagram that describes the flow of information at your e-commerce site, the processing functions that music be performed, and the database that will be used. * Physical design: translates the logical design into physical components. 4. Why is system testing important? Name the three types of testing and their relation to each other. * Because a complex e-commerce site can have thousands of path ways through the site, each of which must be documented and then tested. * Unit testing - testing the site’s program modules one at a time
System testing - testing the site as whole, in a way the typical user will use the site.
Acceptance testing – verifies that the business objectives of the system as originally conceived are in fact working.

5. Compare the costs for system development and system maintenance. Which is more expensive, and why? * System maintenance 35% * System development 22%
After developed the system will be bigger, and more complex, and also update to date, so to maintain the system is more expensive than development. 6. Why is a web site so costly to maintain? Discuss the main factors that impact cost. * Because right now technology has lowered the cost of system development, the cost of system maintenance and content