Saturday, 23 March 2013

QlikView-A Data Visualization Tool




Session 9
Date:  19th March,2013


An infographics/data visualization tool that I have studied and found highly sophisticated yet user-friendly is QlikView.

The QlikView Business Discovery platform delivers true self-service BI that empowers business users by driving innovative decision-making.


Features:

This is one of the most practiced data visualization tool which enables the user to
  • Consolidating relevant data from multiple sources into a single application
  • Exploring the associations in the data
  • Enabling social decision making through secure, real-time collaboration
  • Visualizing data with engaging, state-of-the-art graphics
  • Searching across all data—directly and indirectly
  • Interacting with dynamic apps, dashboards and analytics
  • Accessing, analyzing and capturing data from mobile devices

The QlikView Difference over others
  • Has an inference engine that maintains the associations in the data automatically
  • Calculates aggregations on the fly, as needed, for a super-fast user experience
  • Compresses data down to 10% of its original size to optimize the power of the processors
  • Accomplishes both within a single, comprehensive product

Go to http://ap.demo.qlikview.com/download/.

Install the application with valid credential.

The home screen looks like:



Choose any supported file.

I have chose an excel containing few NIFTY historical data as follows:

Date Open High Low Close Shares Traded Turnover (Rs. Cr)
1-Oct-12 5704.75 5722.95 5694 5718.8 123138510 4798.17
3-Oct-12 5727.7 5743.25 5715.8 5731.25 165037864 6654.02
4-Oct-12 5751.55 5807.25 5751.35 5787.6 171404290 6954.74
5-Oct-12 5815 5815.35 4888.2 5746.95 255569804 12995.8
8-Oct-12 5751.85 5751.85 5666.2 5676 142319000 5853.56
9-Oct-12 5708.15 5728.65 5677.9 5704.6 119300415 5047.01
10-Oct-12 5671.15 5686.5 5647.05 5652.15 126294361 4564.39

After loading the data there are several types of visualization options avalible like
Bar chart
Line chart
Combo chart
Scatter chart
Grid chart
Straight Table
Pivot Table

I made use of some of the above mentioned charts to came out some observations:

Fig 1:


Fig 2:



Fig 3:




Some of the features where QlikView lacks are
  •  Qlikview works perfectly when the size of the database is small but in practical cases the database is never small.
  •  Alerts- Capability to create alerts and delivers it to not only Email but blackberries, hand held devices, mobile phones etc
  •  Multiuser development environment- This feature allows multiple developers work on a single project and the utility synchronizes the pieces of project each developer is working with the main project. Qlikview completely lacks this feature.
  • Connect and extract data from multidimensional objects.
  • Support for advance features like embedded browser(available in Hyperion Interactive reporting), flickers(rolling messages) etc as an standard options.

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