Efficiency Of Software Development Research Articles

Logic-Based Analysis and Verification of Software Product Line Variant Requirement Model

Software Product Line (SPL) provides the facility to systematically reuse of software improving the efficiency of software development regarding time, cost and quality. The main idea of SPL is to identify the common core functionality that can be implemented once and reused afterwards. A variant model has also to be developed to manage the variants of the SPL. Usually, a domain model consisting of the common and variant requirements is developed during domain engineering phase to alleviate the reuse opportunity. The authors present a product line model comprising of a variant part for the management of variant and a decision table to depict the customization of decision regarding each variant. Feature diagrams are widely used to model SPL variants. Both feature diagram and our variant model, which is based on tabular method, lacks logically sound formal representation and hence, not amenable to formal verification. Formal representation and verification of SPL has gained much interest in recent years. This chapter presents a logical representation of the variant model by using first order logic. With this representation, the table based variant model as well as the graphical feature diagram can now be verified logically. Besides applying first-order-logic to model the features, the authors also present an approach to model and analyze SPL model by using semantic web approach using OWL-DL. The OWL-DL representation also facilitates the search and maintenance of feature models and support knowledge sharing within a reusable engineering context. Reasoning tools are used to verify the consistency of the feature configuration for both logic-based and semantic web-based approaches.

A Design and Implementation of Bootloader Based on MPC8280

The core unit of the flight control system being the central part of the Unmanned Aerial Vehicle (UAV) system is the flight control computer playing a vital role in the stability and security of the entire system, which has fast and reliable requirements for system startup. Bootloader is the first section of software code that runs after powering on, mainly responsible for initializing hardware devices. By loading an application or operating system kernel, the bootloader completes the system startup. Based on MPC8280 processor’s hardware platform of the central processing unit of distributed flight control computer, this paper designs and implements a non-operating system boot scheme. Under the boot scheme, an optimal boot scheme aiming at increasing efficiency of software development for VxWorks operating system is provide.

Crowdsourcing Software Development Process Study on Ultra-Large-Scale System

Software Crowdsourcing development model shows the increasingly strong advantage in solving the development of ultra large scale system, mode of development of this new software development process chang to mass, openness and community. At the same time, Software Crowdsourcing development process also reflects the strong competitive, crowdsourcing software development mode is a periodical process of releasing requirement-bidding competition-software review.In order to promote the community members to collaborate, compete and develop, and to improve the software development efficiency and quality,This paper discusses the group in the process of Software Crowdsourcing development, reward and remuneration of reputation and ranking, corporate governance.thus,we can Improve process management, improve the quality and efficiency of software development.

English

A web application is a utility that is developed to serve a specific purpose in the industry. It is an application that follows a Client-Server architectural model for communication and functioning. This paper is a review of the methodologies proposed for web application development. A general software engineering approach for the development is exemplified first. Secondly, an AGILE based approach for development of web applications is explained in this paper. AGILE is a new methodology for efficient software development being utilized in the industry today. The third review contains a methodology for project estimation for AGILE based web applications. Project estimation has become a cumbersome task today considering the great magnitude of today's web applications. Last but not the least, the automated testing of web applications is presented using a search based software engineering method.

Model-driven analysis and design for software development of autonomous underwater vehicles

SUMMARYSoftware engineering plays a key role in state-of-the-art robotics where more effective and efficient software development solutions are needed for implementation and integration of advanced robotics capabilities. Component-based software engineering and model-driven software development are two paradigms suitable to deal with such challenges. This paper presents the analysis, design, and implementation of control software for an Autonomous Underwater Vehicle (AUV). The software development stages are carried out by using a model-driven toolchain that provides support to design and build component-based software for robotics applications. A case study of a high-performance AUV control application and experimental results from a software schedulability analysis are presented.

Exception analysis in the Java Native Interface

A Foreign Function Interface (FFI) allows one host programming language to interoperate with another foreign language. It enables efficient software development by permitting developers to assemble components in different languages. One typical FFI is the Java Native Interface (JNI), through which Java programs can invoke native-code components developed in C, C++, or assembly code. Although FFIs bring convenience to software development, interface code developed in FFIs is often error prone because of the lack of safety and security enforcement. This paper introduces a static-analysis framework, TurboJet, which finds exception-related bugs in JNI applications. It finds bugs of inconsistent exception declarations and bugs of mishandling JNI exceptions. TurboJet is carefully engineered to achieve both high efficiency and accuracy. We have applied TurboJet on a set of benchmark programs and identified many errors. We have also implemented a practical Eclipse plug-in based on TurboJet that can be used by JNI programmers to find errors in their code.

Real-Time Temperature Monitoring System Design Based on MATLAB GUI

A temperature real-time monitoring system was devised based on MATLAB GUI. It improved the data processing speed and software development efficiency. Serial port tool box in MATLAB and Modbus communication protocol were used to link up thermostat to PC. Variety operating modes can be achieved in different parameter configurations. The software source file is 304 KB. Test results show that, the temperature response curves of different parameters configuration are quite accurate. The sampling interval was 1s and the measurement accuracy was 0.1°C.

Product and process patterns for agent-based modelling and simulation

Patterns have offered a powerful yet simple way to conceptualize and communicate ideas in many disciplines since Christopher Alexander introduced them in the late 1970s. Patterns in general, and design patterns in particular, became widely used for software development by the 1990s. They have subsequently been shown to be of substantial value in improving software quality and development efficiency. Several authors have suggested that there is great potential for patterns to improve the practice of agent-based modelling and simulation as well. We consider product and process patterns in this paper. Product patterns are a vocabulary for designing or implementing models. Process patterns are methods for designing, implementing, or using models. This paper's contribution is to identify a set of product and process patterns for agent-based modelling and simulation. The applicability of each proposed pattern is substantiated with published examples of their use within models or modeling libraries.

USN 멀티플랫폼을 위한 노드 소프트웨어 개발을 지원하는 속성 설계 기법

USN(Ubiquitous Sensor Network) 응용 소프트웨어는 다양한 대상 운영체제의 핵심모듈들을 기반으로, 다양한 종류의 센서 노드들을 유기적으로 제어하는 복잡한 특징을 가진다. 이에 따라, 현재 USN 응용 분야에서는 효율적으로 소프트웨어를 개발하기 위한 다양한 연구가 진행되고 있다. 본 논문에서는 센서 네트워크 환경에서 하나의 모델로 부터 여러 플랫폼에 맞는 노드 소프트웨어를 효율적으로 개발하기 위한 속성 기반 개발을 지원하는 속성 설계 기법을 제시한다. 제시된 기법에서는 Platform Independent Model과 Platform Specific Model을 만들기 위한 속성을 설계하는 방법을 기술한다. 본 논문에서 제시하는 기법을 사용하면, 속성 값의 선택을 통하여 멀티 플랫폼을 위한 노드 소프트웨어를 손쉽게 디자인함으로써 소프트웨어 개발 생산성은 증대된다. 또한 운영체제의 변화에 따라 속성 변경을 통하여 노드 소프트웨어를 쉽게 재생성할 수 있으므로, 소프트웨어의 유지보수성이 향상된다. USN(Ubiquitous Sensor Network) application software has a characteristic that it controls a variety of sensor nodes based on the various target operating systems. Accordingly, many researches for efficient development of USN application software are being performed. In this paper, the attributes design technique to support attribute-based development of USN node software for multi-platform is proposed. In the proposed technique, the method to design attributes for modeling Platform Independent Model and Platform Specific Model is presented. When using the proposed technique, productivity of software development will be increased because node software design for multi-platform is easily performed by selecting values of attributes. Also, maintainability of software will be increased because node software is easily regenerated by changing attributes according to the changes of operating systems.

Composition Model of Complex Virtual Instrument for Ocean Observing

Ocean observing in global and regional scale is an important part of Internet of Things. Traditional virtual instruments have their limitations when applied in ocean observing, resulting in poor data usability and low development efficiency. In this paper, the complex virtual instruments with enhanced capabilities for ocean observing is introduced to realize cost-efficient developments, in which the objects related to ocean observing are managed uniformly, the common functions that can be reused are provided and the configuration that enable code reuse and visual developments are presented. Furthermore, the concept of composition model of complex virtual instrument for ocean observing is proposed, in which complex virtual instruments that act as four roles can be interconnected by use of three operations. With the assistance of the composition model, the observation data of different observing systems can be exchanged and shared in multiple ways and the development efficiency of processing software is improved. The model has been applied to practical developments to validate its feasibility and effectiveness.

An Empirical Study on Adjustment Factors to Estimate Maintenance Cost of Applications Developed Using Components

Recently, the efficiency of software development is dependent on the use of component modules and open source. However, these need the additional cost and effort for understanding and modification, which is basic process in software maintenance. In this research, adjustment factor which shows the maintenance cost of the black box embedded software like the component module and open source is proposed. In order to calculate the maintenance and repair adjustment factor, we have classified type of application system based on maintenance and repair specialized company K. And the methods for determine whether the adjustment factor applicable to the application is proposed. Also it confirmed that it need to adjust maintenance cost about 8% in result of an analysis of data and the discussion with the person in charge and experts about application type in which the component is included.

基于网络的可信软件大规模协同开发与演化

With the coming of the Internet era, great changes have taken place in the development models, runtime environments and providing styles of software. Being an open and collaborative working environment, Internet gives birth to mechanisms for successful crowd-based and collaborative creation, which have had profound impacts on development and application of software. How to combine these mechanisms with industrial approaches for trustworthy software production, and to improve the development efficiency and quality of software, are new challenging issues of software technologies in Internet era. This paper proposes a new approach for trustworthy software development based on the crowd wisdom, namely Crowd-based Method, which centers on crowd collaboration, resource sharing, runtime monitoring and trustworthiness analysis, to support the transformation from creative software works to mature software products, and supports the evolution of software. Firstly, an evidence-based concept model of trustworthy software is proposed, which classifies the data generated at the stages of software development, sharing and application as three kinds of trustworthiness evidence of software, and constructs a new process model for software evolution. Secondly, a service model for collaborative development and evolution of trustworthy software is proposed, which supports: (1) the socialized software development deeply combining the software creation and production; (2) the open and ranked trustworthy software resource sharing; and (3) the evaluation of software trustworthiness based on mass data analysis. Finally, with the background of the highly trustworthy software production tools and integrated environment (Trustie), this paper expounds the key technologies, development environments and application practices for the proposed Crowd-based Method.

基于Android的汽车油耗信息管理系统的UML模型

UML是一种用于构造可视化、文档化的图形建模语言。在需求分析的基础上，对基于Android平台的汽车油耗信息管理应用系统，使用UML建模工具，分别建立了添加加油信息UML模型、添加加油站UML模型、加油信息管理UML模型、油耗统计UML模型等，完成对应用软件的分析与设计，采用Java语言完成对应用软件的开发。对油耗统计提出了基于剩余油量的计算方法，比传统的加油灯计算油耗方法更准确有效。实践表明，UML分析可以有效构建系统模型并提高应用软件的开发效率。 UML is a graphical modeling language for visualized construct and documentation representation. After demand of the function is analyzed, UML models of oil information appending, gas stations appending, oil information management and car oil consumption statistics are founded respectively based on UML tool in the information management system of car oil consumption on Mobile with Android OS. Then analysis and design of the application software are implemented. The application software is developed by using Java. The calculation method of car oil consumption is proposed based on the amount of oil left. It is more accurate and effective than traditional method which is based on oil lamp. The actual system shows that UML could be used to build system models effectively and also could improve the efficiency of application software development.

An Inconsistency Management Support System for Collaborative Software Development

In collaborative software developments, many change processes implementing change requests are executed concurrently by different workers. The fact that the workers do not have sufficient information about the others' work and complicated dependencies among artifacts can lead to unexpected inconsistencies among the artifacts impacted by the changes. Most previous studies concentrated only on concurrent changes and considered them separately. However, even when the changes are not concurrent, inconsistencies may still happen if a worker does not recognize the impact of the changes made by other workers on his changes or the impact of his changes on other workers' changes. In addition, the changes in a change process are related to each other through their common target of realizing the change request and the dependencies among the changed artifacts. Therefore, to handle inconsistencies more effectively, we concentrate on both concurrent and non-concurrent changes, and the context of a change, i.e. the change process containing the change, rather than the ongoing changes only. In this paper, we present an inconsistency awareness mechanism and a Change Support Workflow Management System (CSWMS) that realizes this mechanism. By monitoring the progress of the change processes and the ongoing changes in the client workspaces, CSWMS can notify the workers of a (potential) inconsistency in advance along with the context of the inconsistency, that is, the changes causing the inconsistency and the change processes containing these changes. Based on the information provided by CSWMS, the workers can detect and resolve inconsistencies more easily and quickly. Therefore, our research can contribute to building a safer and more efficient collaborative software development environment.

Grey relational effort analysis technique using robust regression methods for individual projects

Efficient development of software requires accurate estimates. It is unlikely to expect very accurate estimates of software development effort because of the inherent uncertainty in software development projects and the complex and dynamic interaction of factors that impact software development. In this study, two analogy methods based on integration of Grey Relational Effort Analysis Technique using Robust Regression Methods with and without feature subset selection have been proposed. In the previous, Grey Relational based effort estimation studies, GRA is used to assess similarity between projects with m features and effort is estimated from k most similar projects. In the proposed methodologies, the effort of the reference project is estimated by applying regression techniques to k most similar projects obtained using GRA as the similarity metric. Empirical results obtained are statistically significant, indicating that the methodology has great potential and can be used as a candidate approach for software effort estimation.

Research on E-Commerce Software Framework of MVC Mode Based on .NET

E-commerce through the internet to provide online trading and management of the whole process of service, software is the foundation of E-commerce application. In connection with problem of E-commerce software development, this article study research .NET technology, the MVC mode of E-commerce software framework to support E-commerce software development, implement MVC pattern framework of E-commerce software, assist the development of E-commerce software. Firstly, research the function of the E-commerce software; then research work pattern which construct by the three core components of the model, view and controller MVC mode; Finally, research ASP.NET MVC framework, include the framework composition, processes, framework advantages and so on. use the development framework which this article research, is not only achieve a complete separation of the view, controller and model, and implement the separation of business logic and persistence layer, improve the software reusability and development efficiency.

Code-coupling strategy for efficient development of computer software in multiscale and multiphysics nonlinear evolution problems in computational mechanics

In this work we seek to provide an efficient approach to development of software computational platform for the currently very active research domain of multiphysics and multiscale analysis in fully nonlinear setting. The typical problem to be solved is nonlinear evolution problem, with different scales in space and time. We show here that a successful solution to such a problem requires gathering the sound theoretical formulation, the most appropriate discrete approximation and the efficient numerical implementation. We show in particular that the most efficient numerical implementation is obtained by reusing the existing codes, in order to accelerate the code development and validation. The key element that makes such an approach possible is the Component Template Library (CTL), presented in this work. We show that the CTL allows to seamlessly merge the existing software products into a single code at compilation time, regardless of their ‘heterogeneities’ in terms of programming language or redundancy in use of local variables. A couple of illustrative problems of fluid–structure interaction and multiscale nonlinear analysis are presented in order to confirm the advantage of the proposed approach.

The Defect Management Model Design Based on the Project

The article describes that defect management takes an important effect on developing software project. The general project management models based on defect management has been designed , which on the basis of analyses requirement and workflow of defect management. Referencing the module, project development team can develop defect management software, and by which the team can improve the efficiency of software development and design quality objective.

Comparative Study of the Software Metrics for the complexity and Maintainability of Software Development

Software metrics is one of the well-known topics of research in software engineering. Metrics are used to improve the quality and validity of software systems. Research in this area focus mainly on static metrics obtained by static analysis of the software. However modern software systems without object oriented design are incomplete. Every system has its own complexity which should be measured to improve the quality of the system. This paper describes the different types of metrics along with the static code metrics and Object oriented metrics. Then the metrics are summarized on the basis of relevance in finding the complexity and hence help in better maintainability of the software code, retaining the quality and making it cost effective. Keywords—Static metrics; OO metrics; MOOD I. INTRODUCTION Software Metrics are used to increase the quality of software since decades. For the better software development, measurement plays a very critical role for software engineering to make it a true engineering discipline. Hardware as well as software became complex day by day, so manageability is a major concern. Past were the days when only traditional metrics were used to improve the quality and technical decisions regarding softwares. Modern systems are impossible without OO design as object-oriented programming plays a very critical role for effective and efficient software development. Software engineers developed many ways to maintain software quality and developed softwares using object-oriented programming to solve the common problems. Object-oriented design contains all the properties and quality of software that is related to any large or small project (1). It is a degree through which a system object can hold a particular attribute or characteristics. Object-oriented is a classifying approach that is capable to classify the problem in terms of object and it may provide many paybacks on reliability, adaptability, reusability and decomposition of problem into easily understood objects and providing some future modifications (2).

Review on Aspect Oriented Programming

Aspect-oriented programming (AOP) has been introduced as a potential programming approach for the specification of nonfunctional component properties, such as fault-tolerance, logging and exception handling. Such properties are referred to as crosscutting concerns and represent critical issues that conventional programming approaches could not modularize effectively leading to a complex code. This paper discusses AOP concept, the necessity that led to it, how it provides better results in code quality and software development efficiency, followed by stating challenges that developers and researchers face when dealing with this approach. It has been concluded that AOP is promising and deserves more attention from developers and researchers. However, more systematic evaluation studies should be conducted to better understand its implications.