电子商务英文课件 (3)
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n Microsoft’s Internet Information Server (IIS)
v Second major Web server software (25% of market)
v Windows-based
Table 3.3
Site Management Tools n Basic tools
Figure 3.2
System Analysis/Planning
n Business objectives:
v List of capabilities you want your site to have
n System functionalities:
v List of information system capabilities needed to achieve business objectives
n Data flow diagrams, processing functions, databases
v Physical design
n Specifies actual physical, software components, models, etc.
Logical Design for a Simple Web Site
n What is the primary source of income for these kinds of sites?
n What benefits are there to starting a business in a recession?
Testing, Implementation, and Maintenance
Pieces of the Site-Building Puzzle
n Main areas where you will need to make decisions:
v Human resources and organizational capabilities
n Creating team with skill set needed to build and manage a successful site
v Hardware v Software v Telecommunications v Site design
The Systems Development Life Cycle
n Methodology for understanding business objectives of a system and designing an appropriate solution
v Monitor customer purchases, marketing campaign effectiveness, etc.
v e.g. WebTrends Analytics 9, Google Analytics
Dynamic Page Generation Tools
n Dynamic page generation:
n Testing
v Unit testing v System testing v Acceptance testing
n Implementation and maintenance:
v Maintenance is ongoing v Maintenance costs: Parallel to development costs v Benchmarking
v Included in all Web servers v Verify that links on pages are still valid v Identify orphan files
n Third-party software and services for advanced site management
Factors in Web Site Optimization
Figure 3.7
Web Site Budgets
n From $5,000 to millions of dollars/year n Components of budget:
vSystem maintenance vSystem development vContent design & development vHardware vTelecommunications vSoftware
n Build own vs. outsourcing:
§ Build your own requires team with diverse skill set; choice of software tools; both risks and possible benefits
n Host own vs. outsourcing
Chapter 4: Building an Ecommerce Web Site
Buildinr Right-Sizes Its Web Store Class Discussion
n What are the factors you should take into account when sizing a Web site’s infrastructure?
E-commerce Merchant Server Software
n Provides basic functionality for online sales
v Online catalog
n List of products available on Web site
v Shopping cart
n Two-tier
v Web server and database server
n Multi-tier
v Web application servers v Backend, legacy databases
Two-Tier E-commerce Architecture
Figure 3.9(a)
n Five major steps:
1. Systems analysis/planning 2. Systems design 3. Building the system 4. Testing 5. Implementation
Web Site Systems Development Life Cycle
Application Servers
n Web application servers:
v Provide specific business functionality required for a Web site
v Type of middleware
n Isolate business applications from Web servers and databases
Figure 3.3 (a)
Physical Design for a Simple Web Site
Figure 3.3 (b)
Build/Host Your Own versus Outsourcing
n Outsourcing: Hiring vendors to provide services involved in building site
Simple versus Multi-tiered Web Site Architecture
n System architecture
v Arrangement of software, machinery, and tasks in an information system needed to achieve a specific functionality
Choices in Building and Hosting
Figure 3.4
Insight on Business
Curly Hair and MotorMouths:
Getting Started on the Cheap
Class Discussion
n How does a small, niche Web site become profitable?
Building an E-commerce Site: A Systematic Approach
n Most important management challenges:
1. Developing a clear understanding of business objectives
2. Knowing how to choose the right technology to achieve those objectives
v Single-function applications increasingly being replaced by integrated software tools that combine all functionality needed for e-commerce site
Table 3.4
Multi-tier E-commerce Architecture
Figure 3.9(b)
Web Server Software n Apache
v Leading Web server software (54% of market) v Works only with UNIX, Linux OSs
n Information requirements:
v Information elements that system must produce in order to achieve business objectives
Table 3.1
Systems Design:
Hardware and Software Platforms
n Why are peak times an important factor to consider?
n What reasons were behind Hilfiger’s choice of ATG for its Web site solution?
n How can operators of smaller sites deal with the right-sizing issue?
§ Hosting: Hosting company responsible for ensuring site is accessible 24/7, for monthly fee
§ Co-location: Firm purchases or leases Web server (with control over its operation), but server is located at vendor’s facility
n System design specification:
v Description of main components of a system and their relationship to one another
n Two components of system design:
v Logical design
v Contents of Web page stored as objects in database and fetched when needed
n Common tools: CGI, ASP, JSP n Advantages
v Lowers menu costs v Permits easy online market segmentation v Enables cost-free price discrimination v Enables Web content management system (WCMS)
v Second major Web server software (25% of market)
v Windows-based
Table 3.3
Site Management Tools n Basic tools
Figure 3.2
System Analysis/Planning
n Business objectives:
v List of capabilities you want your site to have
n System functionalities:
v List of information system capabilities needed to achieve business objectives
n Data flow diagrams, processing functions, databases
v Physical design
n Specifies actual physical, software components, models, etc.
Logical Design for a Simple Web Site
n What is the primary source of income for these kinds of sites?
n What benefits are there to starting a business in a recession?
Testing, Implementation, and Maintenance
Pieces of the Site-Building Puzzle
n Main areas where you will need to make decisions:
v Human resources and organizational capabilities
n Creating team with skill set needed to build and manage a successful site
v Hardware v Software v Telecommunications v Site design
The Systems Development Life Cycle
n Methodology for understanding business objectives of a system and designing an appropriate solution
v Monitor customer purchases, marketing campaign effectiveness, etc.
v e.g. WebTrends Analytics 9, Google Analytics
Dynamic Page Generation Tools
n Dynamic page generation:
n Testing
v Unit testing v System testing v Acceptance testing
n Implementation and maintenance:
v Maintenance is ongoing v Maintenance costs: Parallel to development costs v Benchmarking
v Included in all Web servers v Verify that links on pages are still valid v Identify orphan files
n Third-party software and services for advanced site management
Factors in Web Site Optimization
Figure 3.7
Web Site Budgets
n From $5,000 to millions of dollars/year n Components of budget:
vSystem maintenance vSystem development vContent design & development vHardware vTelecommunications vSoftware
n Build own vs. outsourcing:
§ Build your own requires team with diverse skill set; choice of software tools; both risks and possible benefits
n Host own vs. outsourcing
Chapter 4: Building an Ecommerce Web Site
Buildinr Right-Sizes Its Web Store Class Discussion
n What are the factors you should take into account when sizing a Web site’s infrastructure?
E-commerce Merchant Server Software
n Provides basic functionality for online sales
v Online catalog
n List of products available on Web site
v Shopping cart
n Two-tier
v Web server and database server
n Multi-tier
v Web application servers v Backend, legacy databases
Two-Tier E-commerce Architecture
Figure 3.9(a)
n Five major steps:
1. Systems analysis/planning 2. Systems design 3. Building the system 4. Testing 5. Implementation
Web Site Systems Development Life Cycle
Application Servers
n Web application servers:
v Provide specific business functionality required for a Web site
v Type of middleware
n Isolate business applications from Web servers and databases
Figure 3.3 (a)
Physical Design for a Simple Web Site
Figure 3.3 (b)
Build/Host Your Own versus Outsourcing
n Outsourcing: Hiring vendors to provide services involved in building site
Simple versus Multi-tiered Web Site Architecture
n System architecture
v Arrangement of software, machinery, and tasks in an information system needed to achieve a specific functionality
Choices in Building and Hosting
Figure 3.4
Insight on Business
Curly Hair and MotorMouths:
Getting Started on the Cheap
Class Discussion
n How does a small, niche Web site become profitable?
Building an E-commerce Site: A Systematic Approach
n Most important management challenges:
1. Developing a clear understanding of business objectives
2. Knowing how to choose the right technology to achieve those objectives
v Single-function applications increasingly being replaced by integrated software tools that combine all functionality needed for e-commerce site
Table 3.4
Multi-tier E-commerce Architecture
Figure 3.9(b)
Web Server Software n Apache
v Leading Web server software (54% of market) v Works only with UNIX, Linux OSs
n Information requirements:
v Information elements that system must produce in order to achieve business objectives
Table 3.1
Systems Design:
Hardware and Software Platforms
n Why are peak times an important factor to consider?
n What reasons were behind Hilfiger’s choice of ATG for its Web site solution?
n How can operators of smaller sites deal with the right-sizing issue?
§ Hosting: Hosting company responsible for ensuring site is accessible 24/7, for monthly fee
§ Co-location: Firm purchases or leases Web server (with control over its operation), but server is located at vendor’s facility
n System design specification:
v Description of main components of a system and their relationship to one another
n Two components of system design:
v Logical design
v Contents of Web page stored as objects in database and fetched when needed
n Common tools: CGI, ASP, JSP n Advantages
v Lowers menu costs v Permits easy online market segmentation v Enables cost-free price discrimination v Enables Web content management system (WCMS)