Transcript Developing a Three Tier Web Application Using ASP.NET and Open

Dr. Morris Liaw
Venkata Vijay Durbhakula
Mahesh Molakalapalli
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It supports the classes of objects and
inheritance of class properties.
It supports complex data structures including
Video, Audio, Graphs and Photos.
There is no need to convert classes of objects
into relational database tables.
No normalization is needed in the database
design.
No relational operators such as Cartesian
product, Join, Selection and Projection are
needed.
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ObjectStore from eXcelon Corp.
Gemstone from Gemstone Systems Inc.
Ontos from Ontos Inc.
Versant from Versant Object Technology
LINQ from Microsoft
We use an open source Object Oriented DBMS
DB4Objects instead
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An open source Object Oriented DBMS
For Java and .NET developers.
Acquired by Versant Corporation in Dec,
2008.
Supports one-line-of-code to store an entire
object into database.
Supports other features, such as dynamic
scheme evolution and native queries.
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Three tier web database application can be
easily developed using DB4O instead of other
OODBs or ADO.NET and traditional relational
databases.
We use Visual Studio 2008 IDE to run the
DB4Objects plug-in and DB4O objects as the
back-end database.
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Essential tools to develop Web Application:
◦ Integrated Development Environment (IDE)
◦ Application Programming Interface (API).
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API tools to abstract the common
programming tasks
◦ Database connections.
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Our application uses DB4O as the back-end
database and C#.NET to communicate with it.
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DB4O on the server can be connected to from
the client.
DB4O objects can be inserted, updated and
retrieved from the client browser.
Microsoft Visual Studio can be configured to
run a DB4O toolkit.
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Microsoft Visual Studio is used as an
integrated development environment (IDE) for
.NET
It has the capability of installing different
kinds of plug-ins into its environment.
There is a DB4O toolkit called Object Manager
Enterprise (OME) that can be installed into
Visual Studio for browsing back-end
database objects.
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Designed for institutions and schools to
manage funds.
This tool handles
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Key fee management functions
Student information
Funds by students
Administration
Student relational management
Thank you