基于过程模式的软件过程框架

Process pattern is an excellent method to express software process knowledge, it can express process knowledge in different granularity and realize the non-gap connection of process knowledge, it supports the reuse and persistent improvement of process knowledge. In this paper, we put forward a process Pattern Based Software Pro-cess Framework(PB-SPF), its three layer architecture has realized the high abstraction of software process and theseparation of its contents, so it have good reusability and adaptability. We can use it as a base for the research of soft-ware process, the building and enactment of process model.     

Towards a self-adaptive service-oriented methodology based on extended SOMA

We propose a self-adaptive process(SAP) that maintains the software architecture quality using the MAPE-K standard model. The proposed process can be plugged into various software development processes and service-oriented methodologies due to its explicitly defined inputs and outputs. To this aim, the proposed SAP is integrated with the service-oriented modeling and application(SOMA) methodology in a two-layered structure to create a novel methodology, named self-adaptive service-oriented architecture methodology(SASOAM), which provides a semi-automatic self-aware method by the composition of architectural tactics. Moreover, the maintenance activity of SOMA is improved using architectural and adaptive patterns, which results in controlling the software architecture quality. The improvement in the maintainability of SOMA is demonstrated by an analytic hierarchy process(AHP) based evaluation method. Furthermore, the proposed method is applied to a case study to represent the feasibility and practicality of SASOAM.     

An Ontology-based System to Support Distributed Software Development

Distributed software development has become an option for software companies to expand their horizons and work with geographically dispersed teams, exploiting the advantages brought by this approach. However, this way of developing software enables new challenges to arise, such as the inexistence of a formal, normalized model of a project＇s data and artifacts accessible to all the individuals involved, which makes it harder for them to communicate, understand each other and what is specified on the project＇s artifacts. With what being said, this paper proposes a knowledge management tool that utilizes a domain-specific ontology for distributed development environments, aiming to help distributed teams overcome the challenges brought by this modality of software development proposing techniques and best practices. Thus, the main output of this work is ontology-based system to support the software development process with distributed teams.     

0ntology建模方法研究

The ontology model of a certain domatin is an effective approach for the intercommunion between people form the different domains,the communication and interoperation among agents,and the share and reuse of the software.But the lack of formal analysis tools for domain modeling results in taking liberties with conceptualization.This paper discusses how to introduce the ontological notions from philosophy into Knowledge Engineering in order to supply a set of formal analysis tools for conceptualization analysis.This method can definitely record the hypothesis and analysis criterions through ontology huilding,and clarify the hiberarchy of concepts.     

Text Classification Based on Domain Ontology

With the quick increase of information and knowledge, automatically classifying text documents is becoming a hotspot of knowledge management. A critical capability of knowledge management systems is to classify the text documents into different categories, which are meaningful to users. In this paper, a text topic classification model based on domain ontology by using Vector Space Model is proposed. Eigenvectors as the input to the vector space model are constructed by utilizing concepts and hierarchical structure of ontology, which also provides the domain knowledge. However, a limited vocabulary problem is encountered while mapping keywords to their corresponding ontology concepts. A synonymy lexicon is utilized to extend the ontology and compress the eigenvector. The problem that eigenvectors are too large and complex to be calculated in traditional methods can be solved. At last, combing the concept＇s supporting, a top-down method according to the ontology structure is used to complete topic classification. An experimental system is implemented and the model is applied to this practical system. Test results show that this model is feasible.     

Human knowledge acquisition from 3D interaction in virtual environments

Recently,virtual environment (VE) based design and planning,which is a kind of interaction intensive computing,has shown great potential.Most users of such systems are specialists or technicians and their 3D interactions with the system embed a great deal of knowledge and skills.Thus,how to integrate human knowledge and skills into VE is a great challenge to researchers in the human computer interaction field.This paper proposes a method for acquiring user knowledge from VE.The main ideas and work include,abstracting the interactive process and formalizing the interactive semantics,as well as providing a semantic model of an interactive information repository,from which user interactive processes can be retrieved and all kinds of application logics can be established.A virtual assembly planning system is introduced as an example of a practical application of this method.Experiments show that the related models can well capture user knowledge and retrieve the interaction process.     

一种软件过程建模语言SPML的设计

本文提出了一个具有丰富语义、灵活的、可扩展的、形式化的软件过程建模语言SPML。它提供了两个不同抽象层次的描述语言以满足不同用户的需求。高抽象层次的语言SPML／H能够较全面地描述软件过程,具有良好的易用性;低抽象层次的语言SPML／L可以描述规则等,适合描述软件过程的细节。SPML／H还能够被逐步地变换成SPML／L,保证了软件过程模型可以在一个共同的形式化基础上被分析和运作。最后通过一个实例说明过程建模语言的有效性。     

MIS软件开发过程的描述

本文用活动的概念来描述软件的开发过程，建立了软件过程的形式化描述模型，以此为基础，给出了MIS软件开发的过程描述。     

基于过程模式的软件过程实施系统的柔性研究

软件过程的复杂性和不确定性要求过程实施系统具有一定的灵活性和适应动态变化的能力。基于过程模式建立了软件过程实施系统。过程模式作为过程建模的可重用组件和过程实施的可重用的知识单元．支持过程模型对软件过程动态特性的描述和定义，支持过程实施中对动态变化的处理，基于过程模式的过程实施系统具有较好的柔性。     

一个面向软件过程的知识挖掘与管理系统

软件过程的知识密集性特征要求组织人员的密切协作、交流，并能够有效地重用组织的实践经验。数据挖掘技术能够从大规模数据中发现有意义的知识，能够为知识管理提供有益的支持，从而得到更好的知识共享和重用效果。在对软件过程进行分析的基础上，提出了协同知识管理模型。介绍了一个集成的面向软件过程的知识挖掘与管理系统iKnow。对iKnow的知识表示、知识挖掘、知识服务和个性化知识检索进行了论述。系统使软件组织的实践经验成为可视、可控和可重用的知识资源。     

基于GRASP的软件维护过程仿真研究

软件维护问题已经日益成为人们关注的焦点,除软件产品本身固有因素(如软件维护性)影响软件维护工作量外,软件维护过程也对它有着重要的影响,一个资源配置合理的维护过程能够提高维护效率,并降低维护费用.文中提出了一个用于对软件维护过程运行进行建模和评估的方法,它能够提高一个维护组织的过程成熟度和效率.该方法建立了基于排队网络软件维护过程模型,并通过GRASP仿真来确定它的运行情况,可以对多种过程方案选择进行仿真,从而避免了实际系统运行实验的风险,仿真结果表明,该方法切实有效,它为软件维护过程的分析及过程改进提供了一个可行的方法.     

软件度量的概念模型

度量面临的重要问题是建立引入和运用度量的一个有效的方法和框架.使用统一的术语、明确的语义对组 .织的过程模型进行定义;创建具体的度量模型参考框架的度量元模型,建立组织整体的度量管理.为解决上述问题,本文建立了软件度量的概念模型CMMP(Conceptual Model of Measurement Process),它是基于软件过程工程元模型(sPEM)的,从而可与现有的过程模型有效地集成.     

软件度量的操作模型

软件企业在实施软件度量的过程中面临最主要的障碍是如何将软件度量转换成可实施的、体现组织过程特征的度量实施过程模型.为解决这一问题,本文基于"软件度量过程也是软件"的思想给出组织级实施软件度量的操作模型OMMP,在此基础上,对基于度量的过程管理框架进行讨论,将度量集成在过程管理框架中.     

P-F模型的过程复用机制及工具

Ｐ－Ｆ模型是一种利用Ｐｅｔｒｉ Ｎｅｔ与形式化描述相结合描述软件过程的方法。Ｐ－Ｆ模型的模板、模式和元模式概念在不同层次上提供了进行过程复用的方法。模板复用的是过程的内容信息;模式复用的则是过程的结构信息,是更高层的复用;元模式是最小的结构单元,可以设计模式。文章介绍了Ｐ－Ｆ模型中的这三种过程复用方法,及其在Ｐ－Ｆ过程设计工具ＰＳＴｏｏｌｓ中实现的途径。