1) The document introduces multimedia databases and their importance. It discusses how advances in technology enabled rich multimedia data types and the need for databases to manage these complex data types. 2) Traditional relational databases are no longer suitable for multimedia data. Multimedia databases allow users to search, manipulate and retrieve various media types like images, video and audio as easily as text. 3) The document covers basic database concepts like data, hardware, software, users and the chronology of databases from files to real world information. It also discusses data modeling and designing multimedia databases.

1. TIV3033 Multimedia Databases
Group B
Name : Syamsul Bahrin Zaibon
Room : FTM 3124
Phone : 04-928 4679
Email :
URL : http://www.uum.edu.my
Consultation Hour :
Tuesday & Thursday 2.30 – 4.30 pm
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2. TIV3033 Multimedia Database
Topic 1
INTRODUCTION TO MULTIMEDIA
DATABASES
Chapter 1 – MMDB [Lynne Dunckley]
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3. OBJECTIVES
1. Understand why multimedia
databases are being developed
2. Appreciate database concepts in
terms of multimedia
3. Understand the technological
background
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4. Background
• Advances in technology enabled
more complex and rich-content
data types to appear
• Computing power increased dramatically
(from 64MH to 2.6GH or more)
• Hardware support (size is no more a problem)
• High-bandwidth networks
• Development in digital input and output
devices for all kinds of non-traditional data
types
• User interface paradigms reflecting human
perception
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5. Motivation
• Multimedia is a much more powerful
communication tool than traditional data in
our daily life
• Image showcase, graphic design, TV
commercial, speech, movie, hand phone
multimedia message, etc
• There is a urgent need for more advanced
systems organizing and managing these
new multimedia data types
• Traditional relational database are NO LONGER suitable
for complex multimedia data
• Automatic and robust systems which produce, transmit,
analyze, manage and search multimedia data in a
reliable way are required
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6. INTRODUCTION
• The importance of Multimedia
Database (MMDB)
• The differences from traditional
databases:
• data types,
• manipulation,
• storage
• delivery
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7. INTRODUCTION
• Manage, store and retrieve all these
different media (multimedia data
types):
• Movies, Pictures, Sound Clips, Documents
etc…
• Dealing with digital data
representation
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8. THE NEED FOR MMDB
• Multimedia application systems, such
as electronic publishing,
teleconferencing and visual simulation
have already become common in our
professional practice.
• Early application of MMDBMSs tended
to use MM for presentational
requirement only.
• For example:
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9. THE NEED FOR MMDBs (cont.)
• However, this external data could not
be manipulated by the DBMS.
• Complex applications are developing
such as entertainment services (video
on demand), MM sales, groupware,
telemedicine etc.
• An essential requirement for these
advanced MMDBs is to search and
manipulate the content of pictures,
sound & video as easily as text data to
retrieve the data needed.
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10. WHAT IS ESSENTIAL ABOUT DB SYSTEM?
Traditional Database
• Users of a database system expect to
be able to manipulate the data obtain
useful output.
• This requires the ability to:
- insert new data
- retrieve and change existing data
- delete data
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11. Database Chronology
Database
Files
Records
Attributes
Entities
Real World
Information
Data
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12. Basic Terms in Database (Example)
Real World : Bookstore
Database : Bookstore Database
Files : Books
Attribute Name
ISBN No. Title Author Years Publisher
123 Database Lyne 2000 A Wesley
Record 422 Director 8 Microsoft 1999 Thompson
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13. Database System
• Consists of 4 major components:
• Data
• Hardware
• Software
• User
• For example:
• database designers do not usually take
into account the human information
processing system and it’s requirement
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14. Database System
• In the traditional database design,
logical and physical aspects of the
system is kept separately
• The logical design is not concerned for
examples with the way the data is
stored because these are considered
to be unfamiliar to each database
system
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15. Database Design
• Database design is a process of
modeling:
• Conceptual model (application programs
hide details of data types. Conceptual
can also hide information (e.g., salary) for
security purposes)
• Logical model (describes data stored in
database, and the relationships among
the data)
• Physical model (how the record is stored)
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16. Aims of Data Modeling
• To identify simple data objects a
system needs to store the relationships
between such objects
• To build a model of the stored data
requirements of a system that is
independent of specific processing
requirements
• To builds a minimal model of the stored
data requirements of a system
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17. Data Model: Ideas of data models
• There are three elements of data
model:
Integrity constraints
schema
Database states Data
manipulation
• Data model is extremely important for
organizing the data within a database
• Data model is an abstract, logical
definition of objects and operations
that allows us to model the structure
and behavior of the data.
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18. Vocabulary of entity modeling
• entity
• occurrence of an entity - e.g..
CUSTOMER = { Customer }
• attributes of an entity - e.g.. Customer
= CustomerName + Address +
CreditRating + ......
• value of an attribute
• candidate key to an entity
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19. The main components of an E-R model &
An example of E-R Modeling
• Entities
• Attributes
• Relationships
Staff Department
Employee Number
Works in
Last Name Dept. Number
First Name Dept. name
Job Title Dept. Centre
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