its simplest terms‚ the translation of data into a secret code. In order to read an encrypted file‚ the receiver of the file must obtain a secret key that will enable him to decrypt the file. A deeper look into cryptography‚ cryptanalysis‚ and the Data Encryption Standard (DES) will provide a better understanding of data encryption. Cryptographic Methods There are two standard methods of cryptography‚ asymmetric encryption and symmetric encryption. Data that is in its original form (unscrambled)
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description of data into the technical specifications of storing and retrieving data. * Goal Create a design for storing data that will provide adequate performance and ensure database integrity‚ security and recoverability. Basically‚ the primary goal of physical database design is data processing efficiency. * Physical Design Process Inputs such as normalized relations and estimation of their volume; definitions of each attributes; expectations and requirements for response time‚ data security
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3/20/2014 How eBay Uses Data and Analytics to Get Closer to Its (Massive) Customer Base | MIT Sloan Management Review How eBay Uses Data and Analytics to Get Closer to Its (Massive) Customer Base Big Idea: Data & Analytics • Interview • June 25‚ 2013 • Reading Time: 11 min Neel Sundaresan (eBay)‚ Interviewed by Renee Boucher Ferguson Online auction site eBay uses data about the behavior of its millions of customers to drive analytics at every level of the organization‚ and get closer
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Network Design: Logical and Physical Design In networking terminology‚ the term network topology refers to the entire structure of the network. There are two primary parts to the topology definition: the physical design‚ which is the actual layout of the wire (media)‚ and the logical design‚ which defines how the media is accessed by the hosts. The physical designs that are commonly used in networks are the Bus‚ Ring‚ Star‚ Extended Star‚ Hierarchical‚ and Mesh. A bus topology uses a single
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1. PRIMARY ANDSECONDARY DATA We explore the availability and use of data (primary and secondary) in the field of business research.Specifically‚ we examine an international sample of doctoral dissertations since 1998‚ categorizingresearch topics‚ data collection‚ and availability of data. Findings suggest that use of only primarydata pervades the discipline‚ despite strong methodological reasons to augment with secondary data. INTRODUCTION Data can be defined as the quantitative or qualitative
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Slide 1: Research Design (Methods & Tools used in Research) -by Mr. Piyush L. Agrawal (M.Pharm Ist Year) What is research? : What is research? It is systematic process of collecting & analysing information in order to increase our knowledge & understanding of the phenomenon about which we are interested . Points of discussion are features of good design‚ types of Research Design ‚ basic principles of experimental design . Slide 3: Basic Steps for research project: Select a topic Review
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article is designed to find out the experience of working from home‚ the paper is argued that the transition of managers from office based working atmosphere to partly home based place is more than a physical move the location of the paid work. The data was used was taken from a research project situated in the UK where legislation (UK Employment Act ‚2002) has supported the introduction of flexible work arrangements including home-based telework The research identified 25 managers from diverse industrial
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Data Services Vodafone’s Data Services are tailored to make you stay competitive even as your needs change. We provide simplified network solutions to improve your productivity and also offer customized solutions that save organizations from having to deal with multiple providers. We offer entry-level products using ADSL technology to high-end solutions delivered through a mix of ATM‚ Frame Relay or IP/VPN over MPLS-established technologies that alleviate pressure on your IT resources and give you
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Data Mining DM Defined Is the analysis of (often large) observational data sets to find unsuspected relationships and to summarize the data in novel ways that are both understandable and useful to the data owner Process of analyzing data from different perspectives and summarizing it into useful information A class of database applications that look for hidden patterns in a group of data that can be used to predict future behavior. DM Defined The relationships and summaries derived
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Factors that influence the selection of data collection instruments Data Collection is an important aspect of any type of research study. Inaccurate data collection can impact the results of a study and ultimately lead to invalid results. Data collection methods for impact evaluation vary along a continuum. At the one end of this continuum are quantitative methods and at the other end of the continuum are Qualitative methods for data collection. A data collection instrument is a tool for monitoring
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