Transcript TC Sounds - University of San Diego

Classic ASP vs. ASP.NET
Technical Information and Market Adoption
Lance Welker
University of San Diego
Dr. Rebman
MSIT 526
December 20, 2005
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Agenda
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Introduction to Dynamic Web pages
Classic ASP
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ASP.NET
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Technical Details
History
Technical Details
History and Future
Conclusion
Questions/Comments
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Introduction
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Dynamic Web Pages
Introduction
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In the beginning there was static HTML
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All pages maintained the same visual
appearance for all customers
Now everything is dynamic
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Decision process prior to sending requested
page to client browser
Enables greater customization and interactivity
Variables include:
 Time
 The customer
 Specific events
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Classic ASP
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Classic ASP
Introduction
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A server-based technology that developers
use to create dynamic and interactive
HTML pages.
Instructions can:
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Request data from a server-side database
Insert data from the client into a database on
the server
Perform mathematical calculations
Perform if-then logic
And much more…
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Classic ASP
Coding languages
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ASP makes use of scripting languages
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Can execute high level instructions
individually which simplifies coding
Favors rapid development over efficiency and
execution
Slower to execute and consume more
memory than compiled languages
Languages used include:
 Visual Basic Script (VBScript) *
 Java Script (Jscript)
 Perl Script
 Python
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Classic ASP
Page structure
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HTML source code, ASP statements and text are
intermixed within and HTML page.
For example:
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<% IF session(“username”) = “” THEN %>
<h1>You are not currently logged in<h1>
<%ELSE%>
<h1>You are currently logged in as: <br>
<%=session(“username”)%> <h1>
<%END IF%>
All Web browsers work with ASP
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Classic ASP
More Information
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Tools
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Interpretation by ASP Script Engine
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Every time a page is requested
Security
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Debugging issues
ASP code can’t be seen
Authorization and Authentication issues
State management
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Cookies are required
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ASP History
Perfect timing
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ASP 1.0 released December 1996
Versioning and bundling
 Internet Explorer
Third party vendors
Web hosting
Books, magazines, Web sites
Workforce talent
Most widely used Web development
language
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ASP.NET
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ASP.NET
Today’s version of ASP
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Drastically different than Classic version
Ultimately enables Web pages to replace
applications traditionally loaded on local
drives.
Designed to provide easier, more
consistent development environment than
Classic ASP
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ASP.NET
Today’s version of ASP
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More structured and object-oriented
Managed CLR
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Variable declarations
Not backwards compatible
Separation of logic and layout, can be a
different page
Execution order must be specified
Not platform independent
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ASP.NET
Compiled language
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ASP.NET uses a compiler
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Assembly
Faster
Cross language integration
Debugging
Enhanced security
Languages used
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MS Visual Basic .NET
MS Visual C# .NET
Jscript .NET
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ASP.NET
More Information
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Greatly enhanced object class libraries
Security is more easily dealt with
Maintaining session state is easier
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no cookies are needed
WYSIWYG editors available
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MS Visual Studio .NET
ASP.NET Web Matrix Project
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DataGrid
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ASP.NET
More Information
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January 2002, ASP.NET 1.0
November 2005, ASP.NET 2.0
Market attitudes, adoption
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Much more complicated
Need to understand OO programming
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Conclusion
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Conclusion
Classic ASP will survive
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Until ASP.NET becomes necessary for the
masses, Classic ASP will maintain a large
user group
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Comments and Questions
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Thank you for your time
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