SAP NetWeaver is an open integration and application platform for all SAP solutions and specific SAP partner solutions. It is a Web-based platform that enables the enterprise-wide and technologically-independent integration and coordination of employees, information, and business processes.

SAP NetWeaver Application Server is an open, scalable and highly available infrastructure for developing dynamic cross-company business applications. It provides the structure required to bring together business applications and the Internet. The Internet technology required to implement this task is integrated into NW AS ABAP. SAP NetWeaver Application Server supports established standards such as HTTP(S), SMTP, HTML, SOAP, and XML.
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eXtc Web Developer (EWD) is a very high productivity, enterprise-grade platform for developing web applications. It includes an advanced but extremely easy to use Ajax Framework, allowing sophisticated, modern web applications to be built almost as quickly and simply as static web pages. EWD has been designed to be technology-independent, and is potentially capable of working with any web application front-end environment (eg PHP, Java Server Pages, ASP.Net), any scripting language and any database.
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Information and documentation services available on the Internet through web servers are growing in an exponential manner. The logical evolution of the Internet over the last 10 years has been producing a replacement of static web pages and documents by dynamically generated documents. This is due both to user interaction with work processes and flows defined by service creators and to the availability of growing information repositories. This has meant a progressive evolution from a concept of web page publishing which was quite simple in its origins to more complex and differentiated schemes relying on procedures and techniques based on information management. The increasing complexity of services and systems supporting them has made it necessary to formulate a theoretical and practical corpus capable of combining classical information management techniques within organizations with the particular features of the digital environment.
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In the late 1990’s many ERP companies caught the web browser wave, undertaking projects to leverage the Internet and browser technology and even to convert their software to “lite-client” or web “portal” architectures. Unfortunately for some, .NET came on the scene too soon after this major overhaul. When .NET appeared, some were too technically exhausted, or inflexible, or still basking in the glow of their new “Internet-based architectures” to recognize and embrace .NET. Other ERP software companies were and continue to be simply too busy struggling to stay solvent during the devastating one-two-three punch of Y2K, the recession of 2000, and 9/11. They lack the resources to consider the complete restructuring of their products that .NET warrants.
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Web services, an emerging paradigm for architecting and implementing business collaborations within and across organizational boundaries, are currently of interest to both software vendors and scientists. In this paradigm, the functionality provided by business applications is encapsulated within web services: software components described at a semantic level, which can be invoked by application programs or by other services through a stack of Internet standards including HTTP, XML, SOAP, WSDL and UDDI [3,18]. Once deployed, web services provided by various organizations can be inter-connected in order to implement business collaborations, leading to composite web services.
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Although traditional firewalls have effectively prevented network-level attacks, most future attacks will be at the application level, where current security mechanisms are woefully inadequate. Application-level security vulnerabilities are inherent in a Web application’s code, regardless of the technology in which the application is implemented or the security of the Web server and backend database on which it is built. A recent advisory published by Internet Security Systems (see the “Internet Resources” sidebar, p. 44) claims that 11 widely deployed shopping cart applications are vulnerable to a simple attack that lets hackers pur- chase goods for much less than their listed price. Worryingly, the attack does not require particular technical skill; it suffices to save the shopping cart’s HTML confirmation form to disk, use a text editor to modify the price of the goods (stored in a hidden form field), and load the HTML form back into the browser.
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Microsoft gives a name to its Flash-killer technology. The technology formerly known as WPF/E is now known as Silverlight. Microsoft has given a go-to-market name for its cross-platform, cross-browser plug-in for delivering the next generation of user experiences and rich Internet applications for the Web. The technology formerly known as WPF/E is now known as Silverlight.
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What Is Silverlight?
Silverlight is a new Web presentation technology that is created to run on a variety of platforms. It enables the creation of rich, visually stunning and interactive experiences that can run everywhere: within browsers and on multiple devices and desktop operating systems (such as the Apple Macintosh). In consistency with WPF (Windows Presentation Foundation), the presentation technology in Microsoft .NET Framework 3.0 (the Windows programming infrastructure), XAML (eXtensible Application Markup Language) is the foundation of the Silverlight presentation capability.
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