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 It was never intended to replace Internet
This change can be made in one of two ways:  Replication: Look at each distributed database and find changes Apply changes to each distributed database Very complex  Duplication Identify one database as a master Duplicate that database after hours in all locations Easier External Databases  Databases available for a fee from commercial online services or from World Wide Web  Examples: when you use search engine like google or yahoo to look up something on the internet, you are using an external database  Such as new addressing protocols and satellite-quality streaming video, will likely be deployed to the Internet, but it might take about 10 years

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 Fiber-optic transmission, which uses pulses of laser- generated light, offers significant advantage  Reduce size  Reduce installation effort  Vastly greater communication capacity  Much faster transmission speeds  Freedom from electrical interface  Satellite transmission  Ability to transmit massive amount of data, audio, and video over global networks, especially to isolated areas Internet2 13  Next generation of the Internet  High-performance network that uses an entirely different infrastructure than the public Internet we know today.

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منظم حفلات الزفاف هل تريد منظم حفلات الزفاف.. إليك أفضل 9 شركات
 Such as new addressing protocols and satellite-quality streaming video, will likely be deployed to the Internet, but it might take about 10 years
INTRODUCTION TO INFORMATION SYSTEMS LECTURE 10: NETWORK, COMMUNICATION AND ITS APPLICATION أ/ غدير عاشور ppt download
Instead they can include Data Manipulation Language DML e
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Traditional File Processing 16 Database Management Approach  Was conceived to solve the problems encountered with file processing approach  Consolidate data records, that held in separate files, into databases that can be accessed by different programs  Use a database management system DBMS which serves as interface between users and databases:  DBMS includes database management software that has three major functions: Create new database Maintain the quality of database help end users access data 17 Database Management Approach 18 Database Interrogation  End users use a DBMS by asking for information via a query or a report generator and they can receive an immediate response in the form of video or report  Query language — immediate responses to ad hoc data requests  SQL: Structured Query Language an international standard query language found in many DBMS packages It is the language structured to ask questions that the DBMS can retrieve to answer
This divergence can cause problems in the development of programs  In use at 200 universities, scientific institutions, communications corporations Business Value of Telecommunication Networks 14  Use of Internet, intranet, and extranet can:  Cut costs  Shorten business lead times  Shorten response times  Support e-commerce  Improve the collaboration of work-groups  Develop online operation processes All of the above make applications of telecommunications more strategic and vital for business
 Fiber-optic transmission, which uses pulses of laser- generated light, offers significant advantage  Reduce size  Reduce installation effort  Vastly greater communication capacity  Much faster transmission speeds  Freedom from electrical interface  Satellite transmission  Ability to transmit massive amount of data, audio, and video over global networks, especially to isolated areas Internet2 13  Next generation of the Internet  High-performance network that uses an entirely different infrastructure than the public Internet we know today

INTRODUCTION TO INFORMATION SYSTEMS LECTURE 10: NETWORK, COMMUNICATION AND ITS APPLICATION أ/ غدير عاشور ppt download

 Staging is used to store raw data that can be used by developers analysis and support.

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INTRODUCTION TO INFORMATION SYSTEMS LECTURE 9: DATABASE FEATURES, FUNCTIONS AND ARCHITECTURES PART (2) أ/ غدير عاشور ppt download
It stores data that has been extracted from the operational, external and other databases of an organization  Data has been cleaned, transformed and cataloged to be analyzed  Used by managers and professionals for  Data mining,  Online analytical processing  Business analysis  Market research  Decision support 10 Data Warehouse 11  A data warehouse maintains its functions in three layers: staging, integration and access
INTRODUCTION TO INFORMATION SYSTEMS LECTURE 10: NETWORK, COMMUNICATION AND ITS APPLICATION أ/ غدير عاشور ppt download
8 Hypermedia Database  Website database  Consists of hyperlinked pages of multimedia text, graphics, video clips, audio segments  Usually websites that described by HTML code or XML labels use hypermedia database
INTRODUCTION TO INFORMATION SYSTEMS LECTURE 9: DATABASE FEATURES, FUNCTIONS AND ARCHITECTURES PART (2) أ/ غدير عاشور ppt download
 It was never intended to replace Internet