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  • QlikView - Architecture
    As a leading Business Discovery Platform, QlikView is built with a very different approach to data discovery than other traditional platforms. QlikView does not first build a query and then fetch the result based on the query. Rather, it forms associations between different data objects as soon as it is loaded and prompts the user to explore the data in any way. There is no predefined data drill down paths. The data drill down paths can happen in any direction as long as the data is available and associated. Of course, a user can also play a role in creating the associations between data elements using data modeling approach available in QlikView. Architectural Overview QlikView's architecture consists of a front end to visualize the processed data and a back end to provide the security and publication mechanism for QlikView user documents. The diagram given below depicts the internal working of QlikView. The architecture is discussed in detail below the picture. Front End The Front end in QlikView is a browser-based access point for viewing the QlikView documents. It contains the QlikView Server, which is mainly used by the Business users to access the already created BI reports through an internet or intranet URL. Business users explore and interact with data using this front end and derive conclusions about the data. They also collaborate with other users on a given set of reports by sharing insights and exploring data together, in real time or off-line. These user documents are in the format .qvw, which can also be stored in the windows OS as a standalone document The QlikView server in the front end manages the client server communication between the user and QlikView backend system. Back End The QlikView backend consists of QlikView desktop and QlikView publisher. The QlikView desktop is a wizard-driven Windows environment, which has the features to load and transform data from its source. Its drag and drop feature is used to create the GUI layout of the reports that becomes visible in the frontend. The file types, which are created by QlikView desktop are stored with an extension of .qvw. These are the files that are passed on to the QlikView server in the front end, which serves the users with these files. Also .qvw files can be modified to store the data-inly files, which are known as .qvd files. They are binary files, which contain only the data and not the GUI components. The QlikView publisher is used as distribution service to distribute the .qvw documents among various QlikView servers and users. It handles the authorization and access privileges. It also does the direct loading of data from data sources by using the connection strings defined in the .qvw files.
    By: Edwin Castel
    Thursday, Jan 6, 2022
    WATER, ENERGY, AND THE ENVIRONMENT
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  • Data science
    Data science is an interdisciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from noisy, structured and unstructured data, and apply knowledge and actionable insights from data across a broad range of application domains. Data science is related to data mining, machine learning and big data.
    By: rupali
    Friday, Sep 17, 2021
    AGRI-FOOD SYSTEMS
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  • Data communications
    Data communications refer to the transmission of this digital data between two or more computers and a computer network or data network is a telecommunications network that allows computers to exchange data. The physical connection between networked computing devices is established using either cable media or wireless media. The best-known computer network is the Internet.
    By: tajsvini rajesh kamthe
    Wednesday, Aug 18, 2021
    AGRI-FOOD SYSTEMS
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  • Hashing
    In terms of security, hashing is a technique used to encrypt data and generate unpredictable hash values. It is the hash function that generates the hash code, which helps to protect the security of transmission from unauthorized users. Hash function algorithms Hashing algorithm provides a way to verify that the message received is the same as the message sent. It can take a plain text message as input and then computes a value based on that message. Key Points The length of computed value is much shorter than the original message. It is possible that different plain text messages could generate the same value. Here we will discuss a sample hashing algorithm in which we will multiply the number of a’s, e’s and h’s in the message and will then add the number of o’s to this value. For example, the message is “ the combination to the safe is two, seven, thirty-five”. The hash of this message, using our simple hashing algorithm is as follows: The hash of this message is sent to John with cipher text. After he decrypts the message, he computes its hash value using the agreed upon hashing algorithm. If the hash value sent by Bob doesn’t match the hash value of decrypted message, John will know that the message has been altered.  
    By: rupali
    Tuesday, May 18, 2021
    EDUCATION

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  • Computer Input and Output Devices
    Computer being a versatile machine can process different types of data. so to work with these data types we need different type of devices which can help us to enter such data types in the computer and to receive their outputs as well in this chapter we will cover many such devices like keyboard, mouse, joystick, light pen, printer, speaker, etc. That can be used with the computer. What is computer?Children you know that computer is a data processing machine and it needs user’s instructions to perform any job. After processing the raw facts (called data), it produces useful information for the user. But how do you give data and instructions to the computer and how it can return the useful information to you.To do all these, different types of input and output devices can be connected with the computer.Input DevicesThe devices which are used to give data and instructions to the computer are called Input Devices. Various types of input devices can be used with the computer depending upon the type of data you want to enter in the computer, e.g., keyboard, mouse, joystick, light pen, etc.Output DevicesThe devices which are used to display the results or information are called Output Devices. You can view the output on the monitor or you can print it on a paper using a printer. Monitor and the printer are the commonly used output devices.
    By: rupali
    Wednesday, May 12, 2021
    EDUCATION

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  • Social distancing brought mighty economies to their knees
        The entire world's economy has shrunk dramatically. The pandemic delivered the most severe blow to the U.S. economy since the Great Depression as gross domestic product collapsed and millions of jobs were lost.   "This recession was by far the deepest one in postwar history," Richard Clarida, vice chair of the Federal Reserve, noted in a speech.  
    By: Sali Hamilton
    Wednesday, May 12, 2021
    HEALTH AND NUTRITION
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  • Working with organisation
    TeamSupport is customer support software built for Business to Business. Our software is unique in its approach to customer support - with a focus on the customer rather than tickets, and collaboration instead of hierarchy. With innovative features like omnichannel support, the ... Read more Mission: TeamSupport provides the best business to business customer support software in the world. Our solution makes our customers lives easier while improving their own end-user satisfaction and creating better business relationships.
    By: Edwin Castel
    Wednesday, May 12, 2021
    AGRI-FOOD SYSTEMS
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  • Qualitative Data Collection and Instrument Design
    Key Method The educator or district leader determines the necessary qualitative data to collect and also identifies the types of instruments, timeline, and participants involved in the data collection. The educator or district leader reviews publicly available research instruments and uses these to create data collection instruments, such as a survey that includes open-ended questions, one or more interview, or focus group protocol(s) to gather qualitative data from pilot participants. Method Components 1. Identify the metrics you would like to measure. The first step in data collection is to explicitly articulate the metrics that need to be collected. Consider the goal or research question involved in this project to identify the appropriate data necessary to answer your question or measure the success of a pilot.
    By: Edwin Castel
    Wednesday, May 12, 2021
    HEALTH AND NUTRITION
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  • Create your first article
    What to write  No-one knows your product better than you, so go ahead and write about what you know. For example, you can:  Share best practice tips you’ve learned. Walk customers through a key workflow you’re familiar with.  Answer a question customers often ask.    Here are more ideas to get you started.    https://www.intercom.com/help/en/articles/56646-what-articles-should-you-write
    By: sunayana
    Wednesday, May 12, 2021
    EDUCATION

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