IIS Technologies

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IIS Technologies
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Introduction

• Designed to deliver high speed and secure
  information publishing
• Serves as a platform for developers to extend
  internet standard communication capabilities
• Runs as a Windows NT 4.0 (Option Pack) service

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IIS Components

• Full Scale publishing includes following
  components
• Transport Services
• Client applications
• Administrative Tools
• Database Connectivity
• Encrypted Communication

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IIS 4.0 Components

• Purpose
• Hypertext Publishing
• File Transfer
• ODBC Gateway
• Encrypted Comm.
• Server Admn.
• Hypertext Clients

• Component
• WWW Server
• FTP Server
• Internet D/Base Con.
• Secure Socket Layer
• Internet Service Mgr.
• Browsers

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IIS 4.0 Installation

• Installed as a component of WinNT4.0
• Run the set up wizard to install web services and
  various other components
• Simply check the items to be installed

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IIS 4.0 Management

• IIS 4.0 introduces Microsoft Management Console
  (MMC) a window based tool that enables the
  management of all the web services applications
  from a single window

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Web Site Content

• HTML Pages
• HTML Code
• Client Side Scripts
• Active Server Pages (ASPs)
• HTML Code
• Client Server Side Scripts
• Components

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Web Content Creation Tools

• Hypertext Text Markup Language (HTML), Dynamic
  HTML
• Scripting Languages
• JavaScript, Jscript and VBScript
• Component Creation Languages
• VisualBasic, Java, VisualC, VisualJ etc.

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Content Authoring Management Environment

• FrontPage
• InterDev6.0
• IIS Application (VB6.0 Feature)
• HTML Editors

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Content Publishing Environment

• Web Servers
• Microsoft Internet Information Server 4.0
• Netscape Communication Server for WinNT
• Netscape Communication Server for Unix
• Novell Netware Web Server

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ASP Technology

• Active Server Page (ASP) is an open environment
  where one can combine HTML, scripts and reusable
  components to create dynamic and powerful
  web-based business solutions
• ASP runs as service of web server and is
  optimised for multiple threads multiple users

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ASP File

• File created with Active server Pages have the
  extension .ASP
• ASP file is simply a file that contains HTML,
  scripts calls to components
• When a change is made in the ASP file on the
  server, you need only save the changes to the
  file the next time web page is loaded, the
  script will automatically be compiled

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ASP Built-in Objects

• Request
• To get information from the user
• Response
• To send information to the user
• Server
• To control the IIS

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ASP Built-in Objects

• Session
• To store information about the users current
  web-server session
• Application
• To share application-level information control
  settings for the life-time of the application

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Examples of ASP Applications

• A web-based Personnel Information System (Leave
  Monitoring System, HBA Monitoring System and
  other modules which form part of employees
  career cycle)
• Integrated on-line store, inventory and
  order-processing system

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Dynamic HTML

• HTML provides limited interactivity to web pages
• DHTML extends HTML with an object model allowing
  scripting of the objects to change the styles
  and attributes of page elements
• Allows developers to bring more creativity and
  control to web pages, thereby adding dynamic
  behaviour

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Examples of DHTML Use

• Business Applications
• DHTML can help build dynamic forms (e.g. master
  detail order entry forms) and can respond to user
  input, recalculate on the fly and obtain
  additional information in the background
• Interactive Documents
• Documents delivered over the internet are
  essentially confined to page-by-page metaphor,
  whereas DHTML creates interactive documents that
  responds instantly to user actions

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Examples of DHTML Use

• Dynamic Expansion
• With DHTML Search Result pages can be programmed
  using scripts to provide a detailed listing as
  the mouse passes over it thereby, eliminating
  redundant fetches from the server
• Table Manipulation
• Tabular data such as Price lists can be sorted,
  filtered viewed using local database engine

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IIS Application

• An IIS (Internet Information Server) application
  is a Visual Basic application that lives on a Web
  server and responds to requests from the browser
• An IIS application uses HTML to present its user
  interface and uses compiled Visual Basic code to
  process requests and respond to events in the
  browser

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IIS Application

• To the user, an IIS application appears to be
  made up of a series of HTML pages
• To the developer, an IIS application is made up
  of a special type of object called a webclass,
  that in turn contains a series of resources
  called webitems

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IIS Application

• The webclass acts as the central functional unit
  of the application, processing data from the
  browser and sending information to the users
• A series of procedures are defined that determine
  how the webclass responds to these requests
• The webitems are the HTML pages and other data
  the webclass can send to the browser in response
  to a request

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IIS Application vs ASP Application

• IIS applications bear a superficial resemblance
  to Active Server Pages applications
• Both types of applications present dynamic Web
  sites and perform their processing on the server
  rather than the client

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IIS Application vs ASP Application

• However, each has its unique advantages. Active
  Server Pages are for script developers interested
  in authoring Web pages, and offer the unique
  capability of intermingling script with HTML
• IIS applications are for Visual Basic developers
  building Web-based applications, rather than Web
  pages. IIS applications allow for complicated
  business processing and easy access from almost
  any browser or platform

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IIS Application vs DHTML Application

• Like IIS applications, DHTML applications also
  allow you to respond to events in an HTML page.
  However, there are several key differences
  between the two types of applications
• Object model DHTML applications use a different
  object model than IIS applications to access and
  work with the elements on an HTML page. While IIS
  applications use the Active Server Pages object
  model, DHTML applications use the DHTML object
  model

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IIS Application vs DHTML Application

• Location of processing IIS applications are
  designed to perform most of their processing on
  the Web server, but DHTML applications perform
  most of their processing on the browser machine.
  You do not create any Web server components when
  you create a DHTML application
• Dependency DHTML applications are intended for
  use on intranets, and are dependent on Internet
  Explorer 4.0 or later, while IIS applications can
  be used on the Internet or an intranet. End users
  of an IIS application do not need a specific
  operating system or browser

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Browser-IIS Interaction

• Browser sends an HTTP request to the IIS for a
  page on the web server
• The web server gets the requested page and
  processes the server side scripts, (which are
  enclosed within delimiters lt and gt). The
  scripts can assign values to variables or request
  information from server (interaction with other
  tiers)

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Browser-IIS Interaction

• The processed page containing only HTML and
  client-side scripts, if any, is sent to the
  browser

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Case Study Web based Reports of RuralSoft

• RuralSoft Reports are a combination of IIS
  Application and ASP based web pages
• The web-site to host the Reports is prepared
  using ASP technology (InterDev6.0) and the actual
  reports have been developed using IIS
  Application, thus combining the power of the two
  technologies

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Case Study Web based Reports of RuralSoft

• The Reports further interact with data services
  components residing in Microsoft Transaction
  Server (MTS) to fetch the data from the database