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The Control Chart Generator Of Android

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Chapter 1: Introduction

The “Control Charts Generator in Android” is an Android platform based application which provides the mobile phone user to generate various control charts like X-Bar Chart, R Chart etc. using their smartphones at any place, any time, free of cost and without internet connection.
In a nutshell, this application helps a common smartphone user with no major background in statistics and no access to costly mathematical software to generate control charts anywhere anytime and save results in .png format, pdf format.
1.1. Document Conventions
CCGA: Control Charts Generator in Android.
1.2. Existing System
There are two ways to generate control charts:
1. Manually: We perform the calculations using a calculator or by hand and generate control charts on a graph sheet.
2. Using Software: We use software available in market.

1.3. Problems in Existing System
There are many limitations in the existing system be it manual or software.
Problems in Manual by Hand Approach:
1. Time Consuming: Drawing charts by hand is time consuming as it involves a lot of calculations.
2. Error Prone: The calculations made by hand or using calculations are prone to error.
3. Inaccurate Charts: The charts generated by hand on paper sheets are irregular in shape and inaccurate.
4. Difficulty in Maintaining Record: The charts drawn on paper are difficult to store and retrieve at later time for comparisons.

Problems in Software Approach:
1. Cost of Licensing: There are many

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