Lecture 1 1.1 INTRODUCTION Data structure is the branch of computer science that unleashes the knowledge of how the data should be organized‚ how the flow of data should be controlled and how a data structure should be designed and implemented to reduce the complexity and increase the efficiency of the algorithm. The theory of structures not only introduces the data structures‚ but also helps to understand and use the concept of abstraction‚ analyze problems step by step and develop algorithms to
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Data Gathering Techniques Data Gathering Techniques Interview • Interviews can be conducted in person or over the telephone. • Questions should be focused‚ clear‚ and encourage open-ended responses. • Interviews are mainly qualitative in nature. Data Gathering Techniques Advantages of interviews The main advantages of interviews are: • they are useful to obtain detailed information about personal feelings‚ perceptions and opinions • they allow more detailed questions to be asked • they usually
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few similarities between transmitting information over voice and transmitting information over data. The permanent virtual circuit of a data line is the main similarity to a voice connection which uses full duplex on PSTN circuits. These two types of connection are used by multiple services to date. Cell phones use data networks to transmit information. Data networks transfer information using a series of packets. This allows for the “always on feature of today’s cell phones. Landline phones
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Introduction Data management within Human Resources (HR) is essential as this can be used when organisations have to make decisions‚ contact employees and also satisfy legal requirements. Aims and Objectives The aim of this report is to show the importance of why organisations must collect HR data. The objectives are: * To identify two types of data organisations must collect and how this supports HR * To describe two methods of storing HR records and the benefits of each * To explain two
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1. With necessary diagram explain about data warehouse development life cycle . Ans : Introduction to data warehouses. Data warehouse development lifecycle (Kimball’s approach) Q. 2. What is Metadata ? What is it’s uses in Data warehousing Archietechture ? Ans : In simple terms‚ meta data is information about data and is critical for not only the business user but also data warehouse administrators and developers. Without meta data‚ business users will be like tourists left
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SAP DATA ARCHIVING INDEX 1. Introduction................................................................................................... 2. Archiving Objects......................................................................................... 2.1 Definition..................................................................................................................................... 2.2 Archiving objects and related tables................
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So‚ what is a data card? A data card is simply a way to organize all pertinent information by its individual category. Although I‚ have both a Microsoft worksheet document with my data on it‚ I also keep my; load data‚ rifle data‚ inventory‚ best price list and cartridge usage on 3x5 reusable cards. Gunsmith’s and had-loaders can purchase a pack of 50-100 index cards from Dollar Tree. After organizing the information by individual category on the card‚ they can get it laminated. A fine point dry
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of exploration data E very year explorationists‚ industrywide‚ collect billions of dollars worth of data. Yet‚ when it comes time for geologists to extract value from their information‚ they often find that value has been lost through poor practices in data management. There is no reliable record of the data that has been collected or data is not where it should be - it has been misplaced or corrupted. Re-assembling information can consume weeks of their time and can dramatically reduce
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to : Data Flow Diagrams (DFDs) Data Flow Diagrams (DFDs) Data flow diagram (DFD) is a picture of the movement of data between external entities and the processes and data stores within a system Order CUSTOMER Status Message Status Data 2.0 Shipping Confirmation In-Stock Request WAREHOUSE 1.0 Shipping Order Check Status Order Data D1 Pending Orders 3.0 Issue Status Messages Order Data Payment Invoice Manage Accounts Receivable 5.0 Accounting Data Accounts Receivable Data 4.0
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Paper Creating a Data Warehouse Introduction Data warehouses are the latest buzz in the business world. Not only are they used to store data for reporting and forecasting‚ but they are part of a decision support system. There are many reasons for creating and using a data warehouse. The data warehouse will support the decisions a business needs to make‚ usually on a daily basis. The data warehouse collects data‚ consolidates the data for reporting purposes. Data warehouses are accompanied
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