This document discusses a study that analyzed how the average user ratings of Android apps correlate with the fault- and change-proneness of the APIs used by the apps. The study found that apps with high user ratings tend to use APIs that are less fault- and change-prone than those used by low-rated apps. The document also notes that existing mobile app research did not examine this relationship between API issues and user ratings. It proposes further investigating this relationship to provide empirical evidence and insights into what impacts the success of apps.

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The Impact of API Change- and Fault-
Proneness on the User Ratings of Android Apps
Abstract
The mobile apps market is one of the fastest growing areas in the
information technology. In digging their market share, developers must pay
attention to building robust and reliable apps. In fact, users easily get frustrated by
repeated failures, crashes, and other bugs; hence, they abandon some apps in favor
of their competition. In this paper we investigate how the fault- and change-
proneness of APIs used by Android apps relates to their success estimated as the
average rating provided by the users to those apps. First, in a study conducted on
5,848 (free) apps, we analyzed how the ratings that an app had received correlated
with the fault- and change-proneness of the APIs such app relied upon. After that,
we surveyed 45 professional Android developers to assess (i) to what extent
developers experienced problems when using APIs, and (ii) how much they felt
these problems could be the cause for unfavorable user ratings. The results of our
studies indicate that apps having high user ratings use APIs that are less fault- and
change-prone than the APIs used by low rated apps. Also, most of the interviewed
Android developers observed, in their development experience, a direct
relationship between problems experienced with the adopted APIs and the users’
ratings that their apps received.
EXISTING SYSTEM
In existing work Mobile app were used.
DRAWBACK OF EXISTING SYSTEM
 Users easily get frustrated by repeated failures, crashes, and other bugs.

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Copyright © 2015 LeMeniz Infotech. All rights reserved
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LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
PROPOSED SYSTEM
Fault- and change-proneness of APIs used by Android apps relates to their
success estimated as the average rating provided by the users to those apps.
It may impact the success of software applications. These relations have not been
empirically investigated yet.
Solid empirical evidence and shed some light on the relationship between the
success of apps.
ADVANTAGE OF PROPOSED SYSTEM
 Universal computing.
 Low cost of handsets (especially, the Android devices).
 Monetization models.
 Customers’ loyalty to brands such as iPhone or BlackBerry, etc.
 Complexity of low-level programming details.
 APIs to skip bugs in the new version.
SYSTEM SPECIFICATION
Hardware Requirements
System : Pentium IV 2.4 GHz
Hard Disk : 40 GB
Floppy Drive : 1.44 Mb
Monitor : 15 VGA Colour
Mouse : Logitech

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Copyright © 2015 LeMeniz Infotech. All rights reserved
Page number 3
LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Ram : 512 Mb
Software Requirements
Operating system : Windows Family
Tools : eclipse
Technology Used : Java
Backend Used : SQLITE