Software Engineering

N. Kavitha ¹, J. K. Jothi Kalpana ¹, H. Ambika ¹, R. Dhashnamoorthy ¹

Affiliations
1 Department of CSE, V.R.S. College of Engineering and Technology, Arasur, Villupuram, IN

Abstract

Mobile applications (apps) are software developed for use on mobile devices and made available through app stores. App stores are highly competitive markets where developers need to cater to a large number of users spanning multiple countries. This work hypothesizes that there exist country differences in mobile app user behavior and conducts one of the largest surveys to date of app users across the world, in order to identify the precise nature of those differences. The survey investigated user adoption of the app store concept, app needs, and rationale for selecting or abandoning an app. We collected data from more than 15 countries, including USA, China, Japan, Germany, France, Brazil, UK, Italy, Russia, India, Canada, Spain, Australia, Mexico, and South Korea. Analysis of data provided by 4,824 participants showed significant differences in app user behaviors across countries, for example users from USA are more likely to download medical apps, users from UK and Canada are more likely to be influenced by price, users from Japan and Australia are less likely to rate apps. Analysis of the results revealed new challenges to market-driven software engineering related to packaging requirements, feature space, quality expectations, app store dependency, price sensitivity, and ecosystem effect.

Keywords

Data Cleaning, Requirements/Specifications, Market-Driven Software Engineering, Mobile Application Development, User Requirements, Survey Research, App User Behavior, Software Product Lines, Software Ecosystems.

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N. Kavitha ¹, S. Suguna ¹

Affiliations
1 Department of CSE, V.R.S. College of Engineering and Technology, Arasur, Villupuram, IN

Abstract

To improve the design of existing software code. Refactoring doesn‟t change the observable behavior of the software; it improves its internal structure. Software clones appear for a variety of reasons, among which the most obvious is the reuse of existing code (by copy and paste for example), logic or design. Several studies show that about 5% to 20% of software systems can contain duplicated code, which is basically the result of copying existing code fragments and using then by pasting with or without minor modifications. In this paper, we propose a clone removal by refactoring. The refactoring is done with the help of clone manager. It is designed to improve the understandability of the code or change its structure and design, and remove dead code, to make it easier for human maintenance in the future.

Keywords

Refactoring, Duplicated Code, Function Extraction, Generalisation, Renaming, Clone Pair, Clone Clusters.

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