Assignment 6 Pg 305 2. What is a data flow diagram? Why do systems analysts use data flow diagrams? Answers: A picture of the movement of data between external entities and the processes and data stores within a system. Systems analysts use DFDs to help in the analysis phase by accomplishing the following three things: 1. Requirements Determination 2. Requirements Structuring 3. Alternative Generation and Selection 3. Explain the rules for drawing good data flow diagrams. Answers: Process: A
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Major Works Data Sheet Oedipus the King Title: ________________________________ Sophicles Author: ______________________________ Date of Publication: ____________________ Around 450 BC Tragic Drama/Theater Genre: _______________________________ Historical information about the setting The work was written around 450 BC‚ a time of high Greek culture where literature and drama were placed at the forefront of society. Sophocles was a key player in this movement‚ and his plays were performed
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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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Transforming Data into Information By John C. Belt‚ PRG / 211 07-03-2012 Boriphan Siriat Transforming Data to Information One of the main roles of a programmer is to determine what Data is and what information is because the two differ from each other and apply their knowledge to convert data in to information. They take these two variables and develop a way to solve the problem they are trying to solve with both the data and the information. The data within the graph shows a correlation
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12/8/2012 Major Topics Chapter 9 Using Data Flow Diagrams Data flow diagram symbols Data flow diagram levels Creating data flow diagrams Physical and logical data flow diagrams Partitioning Event driven modeling Use case and data flow diagrams Systems Analysis and Design Kendall and Kendall Fifth Edition Kendall & Kendall Using Data Flow Diagrams Unexploded data flow diagrams are useful to identify information requirements Exploded data flow diagrams can be used for presentation
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2231-4946] Development of Data leakage Detection Using Data Allocation Strategies Rudragouda G Patil Dept of CSE‚ The Oxford College of Engg‚ Bangalore. patilrudrag@gmail.com Abstract-A data distributor has given sensitive data to a set of supposedly trusted agents (third parties). If the data distributed to third parties is found in a public/private domain then finding the guilty party is a nontrivial task to distributor. Traditionally‚ this leakage of data is handled by water marking technique
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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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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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Discuss Data Quality Management (DQM) in your post and include the following: What are the 10 characteristics of data quality? Select three of the 10 characteristics and provide an in-depth analysis. As a HIM professional data quality is very crucial within the health care industry. The HIM professional must provide accuracy when collecting patient data. Data Quality Management (DQM) is defined as the business processes that ensure the integrity of an organization’s data during collection‚ application
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Graphical Representation of Data Chapter 3 ☞ (Paste Examples of any graphs‚ diagrams and maps showing different types of data. For example‚ relief map‚ climatic map‚ distribution of soils maps‚ population map) REPRESENTATION OF DATA Besides the tabular form‚ the data may also be presented in some graphic or diagrammatic form. “The transformation of data through visual methods like graphs‚ diagrams‚ maps and charts is called representation of data.” The need of representing data graphically: Graphics
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