91.3902 Database Systems Assignment #1 1. Discuss the role of a high-level data model in the database design process. High-level data models assist in conceptual design and helps express data requirements of the users and includes detailed descriptions of the entity types‚ relationships‚ and constraints. The high-level data model is also used as a reference to ensure that all users’ data requirements are met and that the requirements do not include conflicts. 2. List the various
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Mobile Database Systems [ 1 ] Jerri Scott Technical Essay #1 Mobile Database Systems MGT – 5151 Database Systems Management November 7‚ 2010 [ 2 ] Due to the increasing utilization of mobile networks and devices‚ mobile database systems have become a prominent method of data access. Data maintenance becomes a necessity for users who require mobility. Therefore‚ the usage of mobile database systems provides a convenient way of data creation‚ collection and management through mobile
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CHAPTER 1: Introducing Database System LEARNING OUTCOMES TOPIC At the end of this chapter‚ students should be able to: DATABASE CONCEPT BSIT 201 Explain what is data management Differentiate manual file system and computerised file system with database system INTRODUCING DATABASE SYSTEM CHAPTER 1 Define database system‚ database and database management system List the functions‚ advantages and disadvantages of database management system PREPARED BY: YEW CHERN
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(51442649) Chui Kai Wing‚ Tom (51216738) Section 1: External Schema We selected “Airline Operation” as our project topic. The routine operation of the database system for airline operation involved three major individuals: Customer‚ Staff and Human Resources Manager. Here are some individual views and functions from three individuals related to the system. Customer - Search for flight available between two airports - Search for a seat available on a particular flight - Purchase air ticket by providing
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prescribed book Chapters 1 - 3: Chapter 5: Chapter 6: Chapter 7: Chapter 12: Chapter 14: Chapter 16: Revise as for Assignment 01 Entity relationship modelling Advanced data modelling Normalisation of database tables Transaction management and concurrency control Distributed database management systems Database connectivity and web development Question 1 What is a composite entity‚ and when is it used? [4 marks] [8 marks] Question 2 Briefly‚ but precisely‚ explain the difference between single-valued
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Running head: HUFFMAN TRUCKING Huffman Trucking: Database Design and Development Huffman Trucking started out as a single owner‚ single truck and trailer‚ operating in the Cleveland Ohio area back in 1936 doing local contract hauls. Today‚ Huffman Trucking is a National carrier with 1‚400 employees‚ 800 tractors‚ 2‚100 trailers‚ and 260 roll-on/roll-off units‚ operating from 3 logistical hubs located in Los Angeles‚ California‚ St. Louis‚ Missouri‚ and Bayonne‚ New Jersey
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Database Models and Legacy Systems The evolution of the information age demanded robust management systems for storing large volume of data‚ efficiency in retrieval‚ and enhanced data security and sharing; hence‚ the development of databases from flat file systems. Despite this advancement in technology‚ many organizations such as Colorado Financial Reporting System (COFRS) continue to use legacy database systems. Colorado Financial Reporting System (COFRS) The Colorado Financial Reporting
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DATABASE DEVELOPMENT FOR AH CHAI MINI CINEMA INTRODUCTION Ah Chai Mini Cinema is a mini cinema. Even though it just a small cinema‚ but it gives the best service and provide quality movie at the good rate. From our observations‚ the cinema has been using conventional filling system to store information about their customers‚ movies and tickets. It requires a lot of files to keep the data. When there are a lot of file‚ it is difficult for the librarians to search for the data when needed
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Assignment 1 Database design Database is a place to store lots of data‚ imagine it as a giant virtual filling cabinet that can be organized in many ways. There’s software called (DBMS) which stands for database management system which allows the user to manage data in database such as; create‚ delete or update. Entities Entities are objects with significant mass and purpose‚ in database entities are tables. Every table contains many fields/attributes. The user must create a table before
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DBS201 Assignment 2 Due Friday‚ April 04th by midnight 10% of final mark Your group must consist of 2 or 3 people You will develop a logical database design for the following description shown later (Page 3 etc). Submissions done by a single person will receive a 20% penalty. Required for submission: One: (60 marks) Printed 3NF solution for each user view in this assignment
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