ISYS 512/812 Business Application Design and Development

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ISYS 512/812Business Application Design and
Development

• Fall 06
• David Chao

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Business Applications

• 1. Database-centric applications
• Personal desktop, PDA/Smart Phone
• Workgroup/Departmental databases
• Enterprise database
• Enterprise Resource Planning (ERP)
• Integrate all enterprise functions
  (manufacturing, finance, sales, marketing,
  inventory, accounting, human resources)
• TPS, DSS, ESS

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Business Applications

• 2. Client/Server structure
• a. Presentation user interface
• Menus, forms, reports, etc
• b. Processing logic
• Business rules
• c. Database

SQL queries
Client
Database Server
Results
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Business Applications

• 3. Distributed structure
• Two-Tier
• Client-based presentation.
• Processing logic is buried either inside the user
  interface on the client or within the database on
  the server, or both.
• Three-Tier, N- tier
• Processing logic is separated from the interface
  and database.

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Business Applications

• 4. Multiple platforms
• Windows-based
• Web-based
• Mobile-based

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Business Applications

• 5. Component and service oriented architecture
• Component-based software development focuses on
  building large software systems by integrating
  previously-existing software components.
• A service-oriented architecture is an information
  technology approach or strategy in which
  applications make use of services available in a
  network such as the World Wide Web.

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Business Applications

• 6. Object-oriented, GUI, event-driven

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Course Objective

• Develop database-centric, multiple platforms,
  component and service oriented business
  applications.

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.Net Architecture
VB.Net
C/J
C
Common Language Specification
ASP.Net
Windows Forms
Data and XML
Base Class Library
Common Language Runtime
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Microsofts .Net

• Language must compliance with Common Language
  Specification, CLS.
• Compile the language into Microsoft Intermediate
  Language (MSIL) code.
• The MSIL code is then executed in the Common
  Language Runtime (CLR), which conceptually is
  same as the Java Virtual Machine, where it is
  translated into machine code by a compiler.

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• Common Language Runtime
• Manages execution of compiled .NET program.
• Provides .Net basic services, such as memory
  management, garbage collection, etc.
• Base Class library define all the basic data
  types such as system.object, numeric, date, etc.
• Data and XML Classes work with database
  (ADO.NET) and XML document.
• ASP.Net and Forms Classes that generate user
  interface.
• CLS CLS dictates the minimum group of features
  that a .Net language must have.

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.Net Advantages

• It is independence from a specific language.
  Developers can create a .Net application in any
  .Net compatible language.
• .Net moves most of the functionality from the
  language to the .Net Framework. All .Net
  languages can use these classes.
• It can exist on multiple platforms, further
  extending the portability of .Net programs.
• Facilitate internet application development
• ASP.Net Web Forms and XML Web services.
• Universal data access Data can be accessed by
  any Internet-connected device.

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Programming in the .Net Framework

• Programming in the .Net Framework means making
  use of the classes, objects, and members exposed
  by the Framework, building your own classes on
  top of these and manipulating the resulting
  objects using a .Net language.

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Hands On Techniques

• Visual Basic .NET
• Interface and event-driven programming
• Class and component programming
• Database programming
• Embedded SQL
• ADO.NET programming model
• Web Techniques
• Server side scripting ASP.NET
• ASP.Net and ADO.Net
• Web services
• Introduction to XML

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Required Software

• Windows XP Professional with Service Pack 2
• Install Internet Information Services
• Control Panel
• Add/Remove programs/Windows Components/IIS
• Visual Studio 2005