1. ISYS 350 Business Application Development
David Chao

2. Business Applications
1. Database-centric applications
Smart Phone: Check stock price
Workgroup/Departmental databases
Enterprise database
Enterprise Resource Planning (ERP)
Integrate all enterprise functions (manufacturing, finance, sales, marketing, inventory, accounting, human resources)
TPS, DSS, ESS

3. 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

4. Business Applications
3. Multiple platforms
Web-based
Non web-based
Windows-based
Mobile-based
Integrated

5. Business Applications
4. 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 such web services.

6. N-Tier Client/Server 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
Processing logic is separated from the interface and database.
N-Tier:
Using services

7. The Web as a Database Application Platform
Three-tier architecture
Browser - interface
Server
web server, database server
processing logic
Advantages:
Cross-platform support
Graphical user interface

8. Business Applications
5. Object-oriented, GUI, event-driven

9. Course Objective
This course provides an overall introduction to modern technologies and concepts employed in the development of business applications.

10. Major Topics Concepts\Technologies Java framework MS .Net framework
Open Source
JavaScript and Google Web Toolkit
Google App Engine
IDE
NetBeans
Visual Studio
Fundamental programming constructs
Major
demo
GUI and event-driven
programming
Object oriented concepts and Class
Major or minor
Database connection
Web application: Server-side scripting
Web application: Client-side scripting
Demo
Service oriented concepts: web service
Platform as a service
Software as a service

11. Portability Java: Write Once Run Anywhere
Java Byte Code
Java Source Code
Java Virtual Machine
(JVM)
Java Byte Code
(Intermediate Code)
Executable Code

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

13. 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.

14. Execution of a .Net Program
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.
It is a server-side technology.

15. Programming with the Java Development Kit and .Net Framework
Programming with the Java Development Kit (JDK) and .Net Framework means making use of the classes, objects, and members exposed by the JDK and .Net Framework, building your own classes on top of these and manipulating the resulting objects using language constructs.

16. Required Software JDK 6 with NetBeans 6.7
Visual Studio Professional 2008