...intended to support reporting and analysis of data. Here are the benefits as follows: • Potential High Returns on Investment • Competitive Advantage • Increased Productivity of Corporate Decision Makers Problems of Data Warehousing Here are some problems associated with developing and maintaining a data warehouse as follows: • Underestimation of Resources for Data Loading • Hidden Problems with Source Systems • Required Data not Captured • Required Data not Captured • Increased End User Demands • Data Homogenization • High Demand for Resources • Data Ownership • High Maintenance • Long Duration Projects • Complexity of Integration Data Warehouse Architecture Operational Data Store • A repository of current and integrated operational data used for analysis Load Manager • Performs all the operations associated with the extraction and loading of data into the extraction and loading of data into the warehouse Warehouse Manager • Performs all the operations associated with the management of data in the warehouse Query Manager • Performs all the operations associated with the management of user queries Detailed Data • The area of the warehouse which stores all the detailed data in the database schema Lightly and Highly Summarized Data • The area of the warehouse which stores all the predefined lightly and highly the predefined lightly...
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...LEGO - EMBRACING CHANGE BY COMBINING BUSINESS INTELLIGENCE WITH A FLEXIBLE INFORMATION SYSTEM History of LEGO Company The LEGO Group was founded in 1932 by Ole Kirk Kristiansen. The company has passed from father to son and is now owned by Kjeld Kirk Kristiansen, a grandchild of the founder. It has come a long way over the past almost 80 years - from a small carpenter’s workshop to a modern, to a global enterprise that is now, in terms of sales, the world’s fourth-largest manufacturer of toys. The name 'LEGO' is an abbreviation of the two Danish words "leg godt", meaning "play well". The original Lego toys started with a wooden duck. But the first LEGO automatic binding brick is their most important product. The products have undergone extensive development over the years – but the foundation remains the traditional LEGO brick. The Lego Group began in the carpentry workshop of Ole Kirk Christiansen, in Billund, Denmark in 1916. In 1961, Lego wished to expand sales to North America, but did not have the logistical capabilities to do so. Lego made an arrangement allowing Samsonite to begin producing and selling Lego products in the United States and Canada. On 7 June 1968, the first Legoland Park was opened in Billund. This theme park featured elaborate models of miniature towns built entirely from Lego bricks. The three acre (12,000 m²) park attracted 625,000 visitors in its first year alone. During the next 20 years, the park grew to more than eight times...
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...International Journal of Database Management Systems ( IJDMS ) Vol.5, No.2, April 2013 CLOUD DATABASE DATABASE AS A SERVICE Waleed Al Shehri Department of Computing, Macquarie University Sydney, NSW 2109, Australia waleed.alshehri@students.mq.edu.au ABSTRACT Cloud computing has been the most adoptable technology in the recent times, and the database has also moved to cloud computing now, so we will look into the details of database as a service and its functioning. This paper includes all the basic information about the database as a service. The working of database as a service and the challenges it is facing are discussed with an appropriate. The structure of database in cloud computing and its working in collaboration with nodes is observed under database as a service. This paper also will highlight the important things to note down before adopting a database as a service provides that is best amongst the other. The advantages and disadvantages of database as a service will let you to decide either to use database as a service or not. Database as a service has already been adopted by many e-commerce companies and those companies are getting benefits from this service. KEYWORDS Database, cloud computing, Virtualization, Database as a Service (DBaaS). 1. INTRODUCTION A database can be accessed by the clients via the internet from the cloud database service provider and is deliverable to the users when they demand it. In other words, cloud database is designed for virtualized...
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...UOPX Failures Distributed systems emerged recently in the world of computers. A distributed system is an application of independent computers that appear to work as a coherent system to its users. The advantages of distributed systems consist of developing the ability to continually to open interactions with other components to accommodate a number of computers and users. Thus, stating that a stand-alone system is not as powerful as a distributed system that has the combined capabilities of distributed components. This type of system does have its complications and is difficult to maintain complex interactions continual between running components. Problems do arise because distributed systems are not without its failures. Four types of failures will characterize and the solutions to two of these failures will address on how to fix such problems. Before constructing a distributed system reliable one must consider fault tolerance, availability, reliability, scalability, performance, and security. Fault tolerance means that the system continues to operate in the event of internal or external system failure to prevent data loss or other issues. Availability needed to restore operations to resume procedure with components has failed to perform. For the system to run over a long period without any errors is need and known as reliability. To remain scalable means to operate correctly on a large scale. Performance and security remains needed so the system can resist attacks...
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...Chapter 1—The Information System: An Accountant’s Perspective TRUE/FALSE 1. Information is a business resource. ANS: T 2. An information system is an example of a natural system. ANS: F 3. Transaction processing systems convert non-financial transactions into financial transactions. ANS: F 4. Information lacking reliability may still have value. ANS: F 5. A balance sheet prepared in conformity with GAAP is an example of discretionary reporting. ANS: F 6. The Management Reporting System provides the internal financial information needed to manage a business. ANS: T 7. Most of the inputs to the General Ledger System come from the Financial Reporting System. ANS: F 8. When preparing discretionary reports, organizations can choose what information to report and how to present it. ANS: T 9. Retrieval is the task of permanently removing obsolete or redundant records from the database. ANS: F 10. Systems development represents 80 to 90 percent of the total cost of a computer system. ANS: F 11. The database administrator is responsible for the security and integrity of the database. ANS: T 12. A backbone system is completely finished, tested, and ready for implementation. ANS: F 13. The internal auditor represents the interests of third-party outsiders. ANS: F 14. Information Technology (IT) audits can be performed by both internal and external auditors. ANS: T 15. The single largest...
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...Database Design DBM502 – Database Management March 24th, 2014 University of Phoenix Professor: Sam Haidar EzStream This paper will provide an overview of the database to be utilized for the startup company EzStream Inc. The core business of EzStream is to provide a complete solution to stream media content via online or WIFI. Customers will have the choice to rent, buy, or pay a monthly subscription to watch media content. Several components will break down the development of the database and provide details to the database infrastructure. Conceptual Design The conceptual design of EzStream’s DB will consist of Movies, Suppliers, and Customers. Customers will either rent or purchase movies, and have the option of paying a monthly subscription rate to watch movies via digital streaming. Data Analysis and Requirements * Tasks during Research and Analysis: * Identify essential "real world" information (e.g. interviews) * Remove redundant, unimportant details * Clarify unclear natural language statements * Fill remaining gaps in discussions * Distinguish data and operations Requirement Analysis First step: filter essential information vs unimportant details * Essentials * There are customers, suppliers, and media content * Identify age of audience for rentals * Customers have a customer identification number * Four weeks maximal rental time. * Unimportant details * "...Rentals since a few...
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...that children have played with for generations. The Danish company has experienced sustained growth since its founding in 1932, and for most of its history its major manufacturing facilities were located in Denmark. In 2003, LEGO was facing tough competition from imitators and manufacturers of electronic toys. In an effort to reduce costs, the group decided to initiate a gradual restructuring process that continues today. II. Time context A distributed architecture system is a software system in which components located on networked computers communicate and coordinate their actions by passing messages. The components interact with each other in order to achieve a common goal. Data may be stored in multiple computers, located in the same physical location; or may be dispersed over a network of interconnected computers. A distributed database can reside on network servers on the Internet, on corporate intranets or extra nets, or on other company networks. Because they store data across multiple computers, distributed databases can improve performance at end-user work sites by allowing transactions to be processed on many machines, instead of being limited to one. Users from different parts of the world may access the same data. Therefore they are more flexible in terms of availability to users. III. View point In deciding what actions are to be undertaken to reduce the operating costs of IV. Statement of the problem It may seem that there's more than one problem...
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...Hughey, Elmehdi Ibnamar DBM/502 Database Management June 25th, 2012 Liz Musil In the late 1960s and early 1970s, there were two mainstream approaches to constructing database Management System’s (DBMS’s). The first approach was based on the hierarchical data model typified by IMS (information Management System). The second approach was based on the network data model, which its main aim of creation was to create a standard database that would unify number of functionalities such as programming languages (queries) for data retrieval, and the inability of the existing database to represent complex relationships database management systems (DBMS). However, these two models had some fundamental disadvantages: • Complex programs had to be written to answer even simple queries • There was minimal data independence • There was no widely accepted theoretical foundation. In reference to DBMS and the ability of building complex relational system, many Relational database management system RDBMS has been developed (also referred as a second generation of DBMSs). RDBMS was used extensively in the 80’s and 90’s, however due to its limitation to respond the more complex entity and, needs of companies and the increasing complexity of database applications. Two “new” data models have emerged; the Object-Relational Database Management Systems (ORDBMS) and Object-Oriented Database Management Systems (OODBMS), which subscribes...
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...manufactured by other companies but guided by the designs and specifications provided by Midwest. • Customer: ➢ Prefers face to face dialogue with sales rep due to some limitations by phone conversation. Firm as a system: • The management is organized and communicates well. • The management provides one week classes to sales reps on new fertilizers, waste water recovery, computer assisted farm management techniques. The classes are not designed to make them experts in the subject, rather make them competent to discuss the topics to their customers • Current systems are fine, but a system upgrade might be necessary • John Kubanna - “If it isn’t broken, don’t fix it”. But I just don’t think that’s a good idea when it comes to computer applications Subsystems of the firm: • Human Resource • Marketing • Manufacturing • Financial Services Statement of the Problem: • What type of database suits the need of Midwest Farm Supplies? Areas of Consideration: • Midwest’s management and employees have comprehensive computer training • Sales reps in Iowa have their “office” in their home • Branches connects to mainframe via web or dial-in • A new ‘smart’ system is in place • Sales data are unique in each branches are stored in mainframes • Mainframe’s workload is increasing Mainframe Contains all the application and data used by all branches Inventory data...
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...management has been done manually and not computerised. They have opened suggestions to the student where they can give out suggestion on which hardware and software can be used for our college library. As most of the library in colleges and public library tend to use computerised system for the management purpose has been making things easy and effective for the librarian to do their job. The type of hardware that I would suggest that would be fundamental for a library system would be definitely the system unit, the monitor, the keyboard, the mouse and a printer. A system unit with a business user specification would be prefect for this usage. In detail, Server or PC with i5 Processor, Windows 7, a 500 GB hard drive, 4 GB of fast DDR3 RAM memory, and a LCD display. Hardware which would be even necessary would be like the finger print reader where this can used to scan and read finger print of students who want to borrow books just have to place their finger to be scanned as their details and data would appear in the monitor’s screen of the librarian. This would be necessary as scanning wouldn’t take a very long time and its even precise compared to filing data manually. The only disadvantage of using the deivce would be where if the if the finger is dirty or injured the reader cant read its print. A smart card reader would also do the...
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...The World Wide Web provides a new paradigm in computer networking for human communication, which had an impact on the delivery of information and continues to stand in rapid developments. The word Web Technology represents a discontinuity in the way applications are connected. Using the Web Technology as the basis for an application brings substantial advantages to the adopter. This report focuses on 2-tier architecture and mainly on the 3-tier architecture, which is the present web technology. This report will also review the client-side scripting and the server-side scripting. TABLE OF CONTENTS EXECUTIVE SUMMARY 2 1. Introduction 3 2. Need for technology 4 3. Terminology 5 4. 2-Tier Architecture 5 5. 3-Tier Architecture 7 6. Client Server Architecture 10 7. Conclusion 12 REFERENCES 13 1. INTRODUCTION Web sites have quickly evolved from simple, static pages to complex Web applications performing critical operations for many businesses. These applications involve dynamic data from multiple sources; ever changing and various features for e-commerce, personalization and many more. At the same time, customers and internal users have understandably come to expect and demand more and more sophistication in the Web-based applications they use every day. The result? Web application solution providers — and their client companies — face several new challenges. They must meet or exceed...
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...Fundamentals of Database Management Systems What is a Database? Database is a collection of data. Mostly the data in the database specially focus on a one organization and have relationship among them. Earlier times those databases were file base databases and not computerized .While using those file base databases many errors occurred and there were many Disadvantages. Nowadays Databases are computerized. What is a Database Management System? (DBMS) DBMS is a Software Designed to assist in maintaining and utilizing a database. References Wikipedia. (2015) Database [Online] June 2005. Available from: https://en.wikipedia.org/wiki/Database [Accessed: 19th June 2015] Evolution of Database Management System In earlier time computers mainly...
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... Page 19 Conclusion Page 20 Bibliography Page 21 Introduction In the following assignment I will present an introduction to databases which will demonstrate my knowledge through creating reports, defining key terms and there advantages and disadvantages, as well as designing an entity model. These will support my knowledge. TASK 1 Diagram 1: Marks & Spencer’s three-layer relational database architecture related to their online activities. Internal Schema (Server) Conceptual Schema (Programmer) External (Customer) External (Supplier) External (Business partners) External (Departments) As shown in diagram 1, a 3-layer Relational database separates the physical database from the user applications. The following schemas are defined at each of the following levels: * Internal * Conceptual * External “The DBMS is responsible for mapping between these...
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... Washington; and Miami, Florida. The Bead Bar on Board is a portable Bead Bar designed for cruise ships, the portable bar can be placed on deck or in a lounge for the cruise members to create their own bead jewelry. Now, the Bead Bar became so popular that it outgrew its paper-based system and is in need of an upgrade to a more effective technology system. The old file cabinet and orders on paper are just not efficient enough to compete with today’s technology advancements. Today’s information technology systems have the ability to globalize and reach customers all over the world, which are of benefit for the Bead Bar to reach more customers and make more sales. Upgrading to an information technology system will also solve most of the problems which comes with a paper-based system such as lost orders, invoicing errors as well as delays in order fulfillments. The company’s background and information technology needs The company information technology system has to include the initialization of a business website, large amount of data storage, the ability to share information between the different locations as well as data security. The company is in need of a strong network system which allows internal and external communications to communicate with between their locations. As of today, the company purchased 14 personal...
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...1/22/2015 Database Systems: Design, Implementationa and Management; 01 Flashcards create, study and share online flash cards MyFlashcards FlashcardDB About Help Donate TellFriends! Home >> Flashcards >> Computer Science >> Database Systems: Design, Implementationa and Management; 01 Shared Flashcard Set Details Title Click here to study/print these flashcards. Database Systems: Design, Implementationa and Management; 01 Ch1 19 Computer Science 02/08/2010 Create your own flash cards! Sign up here. Description Total Cards Subject Created Additional Computer Science Flashcards Related Study Documents from www.coursehero.com (What's Course Hero?) Course Hero is an online platform providing educational resources to help students learn more effectively. Subscription required. ch03 ch03 Course: Course: Cards Term Definition ch1, q1: Define each of the following terms: raw facts i.e., telephone number, a birth date, a customer name, and a yeartodate (YTD) sales value. Data have little meaning unless they have been organized in some logical manner data Term Definition ch1, q1: http://www.flashcardmachine.com/databasesystemsdesignimplementationaandmanagement01.html 1/6 1/22/2015 Database Systems: Design, Implementationa and Management; 01 Flashcards Define each of the following terms: a character or group of characters can be alphabetic or numeric that has a specific...
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