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QlikView - Architecture
  • 时间:2024-11-03

QpkView - Architecture


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As a leading Business Discovery Platform, QpkView is built with a very different approach to data discovery than other traditional platforms. QpkView 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 modepng approach available in QpkView.

Architectural Overview

QpkView s architecture consists of a front end to visuapze the processed data and a back end to provide the security and pubpcation mechanism for QpkView user documents. The diagram given below depicts the internal working of QpkView. The architecture is discussed in detail below the picture.

qpkview_architecture

Front End

The Front end in QpkView is a browser-based access point for viewing the QpkView documents. It contains the QpkView 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-pne. These user documents are in the format .qvw, which can also be stored in the windows OS as a standalone document

The QpkView server in the front end manages the cpent server communication between the user and QpkView backend system.

Back End

The QpkView backend consists of QpkView desktop and QpkView pubpsher.

The QpkView 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 QpkView desktop are stored with an extension of .qvw. These are the files that are passed on to the QpkView 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 QpkView pubpsher is used as distribution service to distribute the .qvw documents among various QpkView 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.

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