Migrating a Web Server to IIS 5.0

Analyzing the Application

The first step in porting a CGI application to ASP is to analyze its logic. Most Web applications consist of five basic types of logic:

• Input processing (reading forms, environment variables, and decoding HTML)
• Business logic
• Database (or gateway) logic for connecting to external services
• Logic for maintaining state between forms
• HTML output logic for returning results to browser clients

The following topics provide a general discussion on how to handle each of these types of logic within the ASP environment:

• Input Processing
• Business Logic
• External Gateway and Database Logic
• Maintaining State
• Output Handling

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