Question 1 What is a data warehouse? What problems does it solve for a business? A data warehouse is a place where data is stored for archival purpose‚ analysis purpose. Usually a data warehouse is either a single computer or many computers servers tied together to create one giant computer systems. Data warehouse solve a lot of problems to companies as it helps to structure files and avoid unnecessary duplication of data. Data warehouse also allows to easily updating data and encourages management
Premium Oracle Corporation Database management system Entity-relationship model
DATA FLOW DIAGRAM Group#7 Nugao Oserin Obongen The Data Flow Diagram (DFD) • a graphical representation of the flow of data through an information system. It enables you to represent the processes in your information system from the viewpoint of data. The DFD lets you visualize how the system operates‚ what the system accomplishes and how it will be implemented‚ when it is refined with further specification. • Data flow diagrams are used by systems analysts to design information-processing systems
Premium Data flow diagram
Data processing is a shop that works in many different working fields. One thing you do in data processing is learning to computer programming. In my shop we are learning to program in Visual Basic and QuickBasic. Programming is used to tell a computer what to do. Using code you can make programs that can answer math problems‚ which would take someone‚ days to calculate in a brief second. In data processing we also learn to word process. Word processing is taking written text and being able to save
Premium Computer
Figure 3.0: First Entry Level Data Flow Diagram of Administrator’s Capabilities The figure 3.0 represents the First Entry Level Data Flow Diagram of the Administrator upon successfully logging-in into the Generic Academic Performance Monitoring System. He/she has the capabilities to manage modules such as handling member’s account‚ importing students list‚ creation of grade criteria‚ grade computation and updating website contents Figure 3.1: Second Entry Level Data Flow Diagram on Managing Account
Premium Data flow diagram Unified Modeling Language Entity-relationship model
Analysis of Loan data and relationship with various factors Introduction As we all know the history of loans as old as the history of money. Earlier there used to be different mechanism of lending money and recovering it. In simple terms it was the process in which the people who have more money than they required used to give money to people who didn’t had enough. Over the years with the evolution of economics the loan process became extremely important for the people who made business out of
Premium Linear regression Regression analysis Debt
EE/CS M171L Fall 2010 Raw Data Sheet Lab 3: Data Transmission over 802.11b Wireless LAN Date 2014/02/20 2. Observation: The main goals for the experiment 3 are first‚ to get basic knowledge of various factors affecting data throughput in a wireless channel‚ second‚ to analyze effect of sporadic losses on TCP throughput and finally‚ to familiarize with basic performance measurement tools in computer networks. In order for us to accomplish these goals‚ we conduct
Premium Measurement Microwave oven Microwave
Use the balance to determine the mass of the rectangular solid. Record the mass to the nearest 0.01 g in the data table. Volume: Use the metric ruler to measure the length‚ width‚ and height of the rectangular solid. Record these measurements to the nearest 0.1 cm in the data table. Calculate the volume using the following formula: Volume (cm3) = length (cm) x width (cm) x height (cm)
Premium Volume Length Periodic table
Financial Data Analysis Daphnnee Johnson HCS 577 March 18‚ 2013 Sharon Gomes-Sanders Financial Data Analysis After reviewing the balance sheet for Patton-Fuller Hospital for 2008 and 2009‚ there are significant differences that are noticeable. The retained earnings (or "Net Worth" or "Unrestricted Fund Balance") drastically decreased from 2008 to 2009 (Apollo Group‚ 2006). The dollar amount
Premium Balance sheet Net income Generally Accepted Accounting Principles
acts using the data stored in cyberspace. The United States government
Premium Security Computer security Privacy
Characteristics and quality of data transmission – Dependent on characteristics of medium and signal – Guided medium ∗ Medium is more important in setting transmission parameters – Unguided medium ∗ Bandwidth of the signal produced by transmitting antenna is important in setting transmission parameters ∗ Signal directionality · Lower frequency signals are omnidirectional · Higher frequency signals can be focused in a directional beam • Design of data transmission system – Concerned with data rate and distance
Premium Electromagnetic radiation Twisted pair Coaxial cable