Recommender System for Configuration Management Process of Entrepreneurial Software Designing Firms

The rapid growth in software demand incentivizes software development organizations to develop exclusive software for their customers worldwide.This problem is addressed by the software development industry by software product line(SPL)practices that employ feature models.However,optimal feature selection based on user requirements is a challenging task.Thus,there is a requirement to resolve the challenges of software development,to increase satisfaction and maintain high product quality,for massive customer needs within limited resources.In this work,we propose a recommender system for the development team and clients to increase productivity and quality by utilizing historical information and prior experiences of similar developers and clients.The proposed system recommends features with their estimated cost concerning new software requirements,from all over the globe according to similar developers’and clients’needs and preferences.The system guides and facilitates the development team by suggesting a list of features,code snippets,libraries,cheat sheets of programming languages,and coding references from a cloud-based knowledge management repository.Similarly,a list of features is suggested to the client according to their needs and preferences.The experimental results revealed that the proposed recommender system is feasible and effective,providing better recommendations to developers and clients.It provides proper and reasonably well-estimated costs to perform development tasks effectively as well as increase the client’s satisfaction level.The results indicate that there is an increase in productivity,performance,and quality of products and a reduction in effort,complexity,and system failure.Therefore,our proposed system facilitates developers and clients during development by providing better recommendations in terms of solutions and anticipated costs.Thus,the increase in productivity and satisfaction level maximizes the benefits and usability of SPL in the modern era of technology.

Softw are Maintainability Evaluation Based on Software Configuration Management Data

As one of the most important attributes of software quality, software maintainability has been widely recognized.However,the existing maintainability evaluation methods are mostly based on subjectively judgment. Thus it is inapplicable or unbelievable. To evaluate software maintainability objectively,the software configuration management( SCM) data are collected to establish a maintainability model. Based on the hidden Markov chain( HMC), a three-state maintainability estimation model is constructed. To validate the feasibility of the model,a real software example of software maintenance activity is given and the result from the example shows the effectiveness of the proposed method.

A Study of Performance Testing in Configurable Software Systems

Customizing applications through program configuration options has been proved by many open-source and commercial projects as one of the best practices in software engineering. However, traditional performance testing is not in synch with this industrial practice. Traditional performance testing techniques consider program inputs as the only external factor. It ignores the performance influence of configuration options. This study aims to stimulate research interest in performance testing in the context of configurable software systems by answering three research questions. That is, why it is necessary to conduct research in performance testing, what are the state-of-the-art techniques, and how do we conduct performance testing research in configurable software systems. In this study, we examine the unique characteristics and challenges of performance testing research in configurable software systems. We review and discuss research topics on the performance bug study, performance anti-patterns, program analysis, and performance testing. We share the research findings from the empirical study and outline the opening opportunities for new and advanced researchers to contribute to the research community.

Integrated Application Technology of Feces Processing in Duck Farm at Scale Based on Configuration Technology

[Objective] The aim was to explore technology on processing feces in duck farms at scale, providing guiding method for effective control of environmental issues in breeding farms. [Methed] Bio-safety disposal and recovering processing of excrements in a duck farm were researched based on technology of configuration, detection, digestion, EM and poultry breeding. [Result] The integrated application technology is quite simple and the cost is not high. During breeding period, excellent organic fertilizers and high-protein forages could be obtained without any antibiotics. Furthermore, secondary wastes and pollution would not occur. In addition, ammonia was lower in excrements processed with earthworm and air pollution was reduced; the produced humus provided organic fertilizers and improved barren soils. [Conclusion] The research provides references of multi-technology integration for related industries.

A Domain Engineering Approach to Increase Productivity in the Development of a Service for Changes Notification of the Configuration Management Database

This paper presents a domain engineering approach to build a software product line that supports the change notification service in a Configuration Management Database (CMDB) according to the Information Technology Infrastructure Library (ITIL) best practices. For the development of this product line, the proposed approach makes use of a construction of products methodology by analogy: this is a new notation which reports the variability of the products, obtaining metrics as important as the number of products and uses a language that enables, by means of the flexibilization of a product and the development of some generators, to build the rest of the product line. In addition the paper offers a standard for the analysis and design of the CMDB as well. Finally, the paper presents an economic model for the product line, where the profitability and productivity of the proposed solution are analyzed.

WUlmap： A Software Tool for Mapping Wildland-Urban Interfaces in Mediterranean European Context

WUIma -which stands for Wildland-Urban Interface MAPping-is a software tool based on a GIS model （developped with Arcgis functions） designed to map wildland-urban interfaces at a large scale over a large area. The main outputs of WUImap are： （1） the map of twelve types of wildland-urban interfaces existing on the territory; （2） the map of four housing configuration （isolated, scattered, dense and very dense clustered housing） related to wildland-urban interfaces （WUI）. These maps are produced according to the method of WUI characterization combining housing configuration and horizontal structure of vegetation. Required inputs to map WUI are the layer of the residential house, the layer defining the fire sensitive area and the layer of the index of aggregation calculated on vegetation. The method of WUI characterization and mapping incorporated into WUImap has been evaluated and applied on real cases with good results. WUlmap has applicability as a decision support aid in a wide variety of land management ranging from fire management and fire prevention to analysis of WUI spread and land cover dynamic. The core method underlying the WUlrnap is summarized in the present paper.

The Report of Virtual Exhibition Software Development

The main structure and key techniques of our Virtual Exhibition Software are summarized. It demonstrates the practice of Software Engineering during the development of our project and discusses the use of UML in it.

STPSO: Optimal Configuration for Cloud Environments

With the increasing number of resources provided by cloud environments, identifying which types of resources should be rent when deploying an application is often a difficult and error-prone process. Currently, most cloud environments offer a wide range of configurable resources, which can be combined in many different ways. Finding an appropriate configuration under cost constraints while meeting requirements is still a challenge. In this paper, software product line engineering is introduced to describe cloud environments, and configurable resources are abstracted as features with attributes. Then, a Self-Tuning Particle Swarm Optimization approach(called STPSO) is proposed to configure the cloud environment. STPSO can automatically adjust the arbitrary configuration to a valid configuration. To evaluate the performance of the proposed approach, we conduct a series of comprehensive experiments. The empirical experiment shows that our approach reduces time and provides a reliable way to find a correct and suitable cloud configuration when dealing with a significant number of resources.

Component versioning for protocol configuration management

Classical software configuration management which deals with source code versioning becomes insufficient when most components are distributed in binary form. As an important aspect of software configuration, protocol configuration also encounters those problems. This paper focuses on solving protocol component versioning issues for protocol configuration man- agement on embedded system, incorporating the following versioning issues: version identification, version description and protocol component archiving and retrieving based on the version library.

An Interactive Method for Validating Stage Configuration

Software product Line (SPL) is an emerging methodology for developing software products. Stage-configuration is one the important processes applying to the SPL. In stage-configuration, different groups and different people make configuration choices in different stages. Therefore, a successful software product is highly dependent on the validity of stage-configuration process. In this paper, a rule-based method is proposed for validating stage-configuration in SPL. A logical representation of variability using First Order Logic (FOL) is provided. Five operations: validation rules, explanation and corrective explanation, propagation and delete-cascade, filtering and cardinality test are studied as proposed operations for validating stage-configuration. The relevant contributions of this paper are: implementing automated consistency checking among constraints during stage-configuration process based on three levels (Variant- to-variant, variant-to-variation point, and variation point-to-variation point), define interactive explanation and corrective explanation, define a filtering operation to guide the user within stage-configuration, and define (explicitly) delete-cascade validation.

Online Fault Detection Configuration on Equipment Side of a Variable-Air-Volume Air Handling Unit

With the development of the technology of the Internet of Things,more and more operational data can be collected from air conditioning systems.Unfortunately,the most of existing air conditioning controllers mainly provide controlling functions more than storing,processing or computing the measured data.This study develops an online fault detection configuration on the equipment side of air conditioning systems to realize these functions.Modbus communication is served to collect real-time operational data.The calculating programs are embedded to identify whether the measured signals exceed their limits or not,and to detect if sensor reading is frozen and other faults in relation to the operational performance are generated or not.The online fault detection configuration is tested on an actual variable-air-volume(VAV)air handling unit(AHU).The results show that the time ratio of fault detection exceeds 95.00%,which means that the configuration exhibits an acceptable fault detection effect.

Improving Information Technology Infrastructure Library Service Delivery Using an Integrated Lean Six Sigma Framework: A Case Study in a Software Application Support Scenario

Increasing competition in service businesses (eg: Information Technology, Healthcare, Education, Logistics, Distribution, Hospitality Financial and other services) is compelling corporates to adopt business improvement philosophies and methodologies for addressing customer demands for better quality service and organizational demands for improving the profit margins through cost reduction. Many companies around the world have already implemented Information Technology Infrastructure Library (ITIL) as a way to manage and control their Information Technology (IT) Departments more effectively. These companies are now willing to improve their ITIL processes in order to become even more efficient. Lean Six Sigma is a methodology that has been suggested as a means to resolve these problems, reducing costs and improving quality. Its application in the IT Services area is becoming increasingly popular among researchers and academicians and can be used to conduct these improvements. Despite the application of lean six sigma approaches to different contexts in the service sector, the application of Lean Six Sigma approaches in service delivery specific to Information Technology Service Management (ITSM) remains largely untested. The purpose of this paper is to implement Integrated Lean Six Sigma for Software application support services and evaluate the benefits of continual service improvement over ITIL.

PLC与InTouch在矿井皮带输送系统中的应用

本文讨论了PLC与InTouch在矿井皮带输送系统中的应用。某工程的画面用InTouch制作,InTouch与PLC用RSLink通信,本文详细讨论了PLC下位机与组态画面软件在该皮带输送系统中的功能与特点。

基于InTouch的风洞自主式维修保障系统监控软件设计

信息技术的发展促进了组态软件的成熟与完善,在工业控制、轨道交通、水电供给乃至武器装备运行控制等领域得到广泛应用;为了配合风洞自主式维修保障系统,提升风洞的维修保障能力与实时的在线监测能力,通过InTouch组态软件设计并应用了可靠、稳定的数据接口;搭建了运行流畅、信息丰富、实时性好的监控软件;为风洞提供了良好的装备状态监测平台;其满足风洞自主式维修保障系统对信息监控及表达的一体化、自动化和可视化的要求,并成功应用在某型风洞中。

InTouch在冷轧机控制系统中的设计和应用

论述了在1 520mm酸连轧计算机控制系统中,人机界面组态软件InTouch 8.0的设计思想和高级编程实例。介绍了计算机控制系统的硬件配置,信息通信方式;叙述了组态软件InTouch的应用特色,给出了自编的函数应用范例。

基于OPC的InTouch与RSview32的通信

在工业控制领域,上位机和下位机进行通信,一般都需要特定的驱动程序,组态软件InTouch与组态软件RSview32通信也不例外。OPC定义一个开放的接口,在这个接口上,基于PC的软件组件能交换数据,因此,OPC为自动化控制领域中的现场设备连接工业应用程序提供一个理想的方法[1]。本文针对InTouch组态软件与RSview32组态软件的通信问题,在介绍OPC数据交换技术的基础上,探讨如何通过OPC技术来实现InTouch与RSview32的通信问题,实现InTouch读取RSview32数据的目的。测试表明,上述方法具有较好的稳定性和可靠性。

基于InTouch组态软件与串口的通讯实现

在连续退火生产线中,炉区温度的稳定性对退火后带钢的品质起着至关重要的作用。连续退火线中采用In-Touch组态软件与带串口功能的温控仪表及调功装置对炉区温度进行检测与控制。鉴于InTouch组态软件与串行温控仪表无法直接串行通讯,提出一种以Visual Basic控件为媒介,InTouch与Visual Basic控件之间采用DDE方式连接,VisualBasic与温控仪表间采用标准的串口通讯协议通讯的控制方法。工程实践结果表明:在该控制方式下,通讯稳定,温度控制达到了工艺要求,满足了生产需求。

一种基于InTouch组态软件实现冗余的方法

基于工业自动控制系统对冗余功能的要求和Intouch组态软件的特点,结合工程实例,从软件运行环境、实现方法、在线检测手段等几个方面阐述了一种利用Intouch组态软件实现冗余的有效方法,指出该方法是一种简单、有效、可靠和低成本的方法,且冗余功能是工业自动控制系统一个重要特性和必要措施。

组态软件InTouch在1450mm冷连轧中的设计和应用

主要论述了在1450mm冷连轧计算机控制系统中,人机界面组态软件InTouch9.0的设计思想和编程实例.首先介绍了计算机控制系统的硬件配置,软件的通讯方式;然后详细介绍了组态软件的应用特色,并给出自编的函数应用实例.

基于ActiveX控件的InTouch控制功能扩展

针对目前组态软件InTouch控制功能不够完善,需要用户进行二次开发的情况,提出一种组态软件扩展控制功能的方法。用Matlab COM生成器生成先进控制算法COM组件,在Visual Basic中开发调用算法组件的控制器ActiveX控件,并将控件引入到组态软件InTouch中,为其扩展单神经元自适应PID控制器功能。仿真实验证明了该方法的可行性。