and explain a Use-Case diagram for a Library Management System. Introduction: Capturing the dynamic behaviour of a system is one the key aspects to create a model. Dynamic behaviour means the behaviour of the system under operation. Use case diagrams are used in Unified Modeling Language‚ a standard modelling language for the modeling of real-world objects and systems. A use case diagram is to explicitly define the working of a system with in a system boundary. Each system is primarily divided into
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DC10 PART-I DATABASE MANAGEMENT SYSTEMS TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS Each question carries 2 marks. Choose the correct or best alternative in the following: Q.1 In the relational modes‚ cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints. Ans: A Q.2 Relational calculus is a (A) Procedural language. (C) Data definition language. Ans: B Q.3 The view of total database content is (A) Conceptual view
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(Editors) CONSUMER BEHAVIOR AND VALUE CREATING NETWORKS IN MULTIMEDIA MOBILE SERVICES − RESULTS OF ROTUAARI PROJECT ____________________________________________________________ ________ OULU 2007 Timo Koivumäki Jaana Tähtinen Kaisa Koskela (editor) Teea Palo (editor) Taloustieteiden tiedekunta Oulun yliopisto Department of Economics and Business Administration University of Oulu Osoite: Address: Puhelin: Phone: PL 4600 90401 Oulu‚ Finland +358 8 553 2925 Koivumäki +358 8 553 2586 Tähtinen
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ABSTRACT The British mobile phone market has grown considerably over the previous years and is regarded to be one of the largest mobile markets in Europe in terms of both the number of subscribers and the revenue of mobiles which exceeded £15.4 billion in 2008. With the rapid growth of the market and due to the high competition amongst the mobile networks in the UK‚ customer satisfaction is required to be considered by those companies in order to retain their customers satisfied
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Mobile phones are not evil‚ we use them everyday to watch youtube‚ to communicate with people‚ to be entertained‚to discover new things ‚to discover new ways of having fun but we never questioned how they do what they do until recently. This essay looks at whether or not mobile phones are good things or bad but in the end concludes that they are great. Mobile phones are not evil and the invasion of our privacy as they transmit data to agencies is not something to be scared of if you have nothing
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he believed that he needed quantitative data to get a more precise understanding of the relative attractiveness of different customer segments. This would require data on end users regarding their preferences and behaviors related to mobile devices and imaging. He therefore hired a market research firm to conduct a quantitative customer segmentation study. The firm conducted a national survey of 2‚000 respondents who were selected from lists of mobile telephone customers aged 15 and older. The
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Millions of people own a mobile phone these days‚ and ever since they have been around scientists question the fact of they are safe or not. Do they cause tumors‚ earaches‚ mercury poisoning? All these health risks are mentioned in every article I found. But nowhere could I find anything that was sure if mobiles did cause all of the above. This is where science fails us. The problem is that mobile phones are still too new to know the long-term effects on human. Mobile phones give of a radiation of
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Chapter I INTRODUCTION Project Background Mobile Technology is most important in the world and current generation. We can get updated information using mobile devices. Such device can be used for personal and business transactions. Moreover‚ mobile devices functionality has evolved tremendously. Nowadays‚ it can be used for a variety of purposes like to locate places much like a GPS‚ to read barcodes‚ to play games‚ to browse the Internet‚ to know weather reports‚ to vote‚ and so much more
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Effects of Mobile Phones at School Mobile phones have become a staple of our society‚ with everyone from elementary school kids to senior citizens owning at least one. According to Wikipedia‚ a mobile phone‚ also known as cell phone‚ is a device that can make and receive telephone calls over a radio link while moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator‚ allowing access to the public telephone network. With the mobile phones
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Topic: Mobile phones are a necessary tool for education. Discuss Mobile phones are the communication device that can connect people with others in any places. Students nowadays rely on mobile phones as their communication devices with friends and parents. Some of them think mobile phones as a learning tool. Are they really essential as a learning tool? This essay will argue that mobile phones are a necessary tool for education but also they are not necessary tool for education. Firstly‚ it
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