ASP.NET
Overview
Microsoft® .NET is a set of software technologies for
connecting information, people, systems, and devices. This new generation of
technology is based on Web services (small  building-block applications that
connect over the Internet). ASP.NET combines unprecedented developer
productivity with increased performance, reliability, and deployment.
ASP.NET makes building real world Web applications dramatically easier. ASP.NET
server controls enable an HTML-like style of declarative programming that let
you build great pages with far less code than with classic ASP. Displaying
data, validating user input, and uploading files are all amazingly easy. Best
of all, ASP.NET pages work in all browsers -- including Netscape, Opera, AOL,
and Internet Explorer.
Flexible Language Options
ASP.NET lets you leverage your current programming language skills. Unlike
classic ASP, which supports only interpreted VBScript and JScript, ASP.NET now
supports more than 25 .NET languages (including built-in support for VB.NET,
C#, and JScript.NET), giving you unprecedented flexibility in your choice of
language.
Great Tool Support
You can harness the full power of ASP.NET using any text editor -- even
Notepad! But Visual Studio .NET adds the productivity of Visual Basic-style
development to the Web. Now you can visually design ASP.NET Web Forms using
familiar drag-drop-doubleclick techniques, and enjoy full-fledged code support
including statement completion and colour-coding. VS.NET also provides
integrated support for debugging and deploying ASP.NET Web applications.
The Enterprise versions of Visual Studio .NET deliver life-cycle features to
help organizations plan, analyze, design, build, test, and coordinate teams
that develop ASP.NET Web applications. These include UML class modelling,
database modelling (conceptual, logical, and physical models), testing tools
(functional, performance and scalability), and enterprise frameworks and
templates, all available within the integrated Visual Studio .NET environment.
Rich Class Framework
Application features that used to be hard to implement, or required a 3rd-party
component, can now be added in just a few lines of code using the .NET
Framework. The .NET Framework offers over 4500 classes that encapsulate rich
functionality like XML, data access, file upload, regular expressions, image
generation, performance monitoring and logging, transactions, message queuing,
SMTP mail, and much more!
Improved Performance and Scalability
ASP.NET lets you use serve more users with the same hardware.
Compiled execution
ASP.NET is much faster than classic ASP, while preserving the "just hit save"
update model of ASP. However, no explicit compile step is required! ASP.NET
will automatically detect any changes, dynamically compile the files if needed,
and store the compiled results to reuse for subsequent requests. Dynamic
compilation ensures that your application is always up to date, and compiled
execution makes it fast. Most applications migrated from classic ASP see a 3x
to 5x increase in pages served.
Rich output caching
ASP.NET output caching can dramatically improve the performance and scalability
of your application. When output caching is enabled on a page, ASP.NET executes
the page just once, and saves the result in memory in addition to sending it to
the user. When another user requests the same page, ASP.NET serves the cached
result from memory without re-executing the page. Output caching is
configurable, and can be used to cache individual regions or an entire page.
Output caching can dramatically improve the performance of data-driven pages by
eliminating the need to query the database on every request.
Web-Farm Session State
ASP.NET session state lets you share session data user-specific state values
across all machines in your Web farm. Now a user can hit different servers in
the web farm over multiple requests and still have full access to her session.
And since business components created with the .NET Framework are
free-threaded, you no longer need to worry about thread affinity.
Microsoft .NET Outperforms J2EE
In a head-to-head comparison of performance and scalability between Sun's Java
Pet Store J2EE blueprint application and the ASP.NET implementation, Microsoft
.NET significantly outperformed J2EE. The bottom line: the ASP.NET
implementation required only 1/4th as many lines of code, was 28x faster
(that's 2700%), and supported 7.6x as many concurrent users as J2EE, with only
1/6th as much
processor utilization.
Enhanced Reliability
ASP.NET ensures that your application is always available to your users.
Memory Leak, Deadlock and Crash Protection
ASP.NET automatically detects and recovers from errors like deadlocks and
memory leaks to ensure your application is always available to your users.
For example, say that your application has a small memory leak, and that after
a week the leak has tied up a significant percentage of your server's virtual
memory. ASP.NET will detect this condition, automatically start up another copy
of the ASP.NET worker process, and direct all new requests to the new process.
Once the old process has finished processing its pending requests, it is
gracefully disposed and the leaked memory is released. Automatically, without
administrator intervention or any interruption of service, ASP.NET has
recovered from the error.
Easy Deployment
ASP.NET takes the pain out of deploying server applications.
"No touch" application deployment
ASP.NET dramatically simplifies installation of your application. With ASP.NET,
you can deploy an entire application as easily as an HTML page: just copy it to
the server. No need to run regsvr32 to register any components, and
configuration settings are stored in an XML file within the application.
Dynamic update of running application
ASP.NET now lets you update compiled components without restarting the web
server. In the past with classic COM components, the developer would have to
restart the web server each time he deployed an update. With ASP.NET, you
simply copy the component over the existing DLL -- ASP.NET will automatically
detect the change and start using the new code.
Easy Migration Path
You don't have to migrate your existing applications to start using ASP.NET.
ASP.NET runs on IIS side-by-side with classic ASP on Windows 2000 and Windows
XP platforms. Your existing ASP applications continue to be processed by
ASP.DLL, while new ASP.NET pages are processed by the new ASP.NET engine. You
can migrate application by application, or single pages. And ASP.NET even lets
you continue to use your existing classic COM business components.
New Application Models
ASP.NET extend your application's reach to new customers and partners.
XML Web Services
XML Web services allow applications to communicate and share data over the
Internet, regardless of operating system or programming language. ASP.NET makes
exposing and calling XML Web Services simple.
Any class can be converted into an XML Web Service with just a few lines of
code, and can be called by any SOAP client. Likewise, ASP.NET makes it
incredibly easy to call XML Web Services from your application. No knowledge of
networking, XML, or SOAP is required.
Mobile Web Device Support
ASP.NET Mobile Controls let you easily target cell phones, PDAs -- over 80
mobile Web devices -- using ASP.NET. You write your application just once, and
the mobile controls automatically generate WAP/WML, HTML, or iMode as required
by the requesting device.
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Contact Us:
Pin Digital Ltd
Midland House
105 Long Street
Atherstone
Warwickshire
CV9 1AB
Tel: 01827 722550
Fax: 01827 722560
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