A top-down strategy to reverse architecting execution views for a large and complex software-intensive system: An experience report

This article is an experience report about the application of a top-down strategy to use and embed an architecture reconstruction approach in the incremental software development process of the Philips MRI scanner, a representative large and complex software-intensive system. The approach is an iterative process to construct execution views without being overwhelmed by the system size and complexity. An execution view contains architectural information that describes what the software of a software-intensive system does at runtime and how it does this. The application of the strategy is illustrated with a case study, the construction of an up-to-date execution view for the start-up process of the Philips MRI scanner. The construction of this view helped the development organization to quickly reduce about 30% the start-up time of the scanner, and set up a new system benchmark for assuring the system performance through future evolution steps. The report provides detailed information about the application of the top-down strategy, including how it supports top-down analysis, communication within the development organization, and the aspects that influence the use of the top-down strategy in other contexts.     

一种用户为中心、基于多视图合成的服务组合方法

用户为中心的服务组合旨在直接地反映用户需求、提高建模灵活性和降低应用构建成本.然而,当前的用户编程方法仍然存在挑战:一方面传统方法以服务为基本元素,忽视了应用背后的业务数据,用户难以从熟知的业务数据角度表达建模需求;另一方面传统方法以控制流为中心,需要精确描述组合细节,非专业的用户不易理解和操作且难以表达业务约束.文中...     

三视角线激光三维人体尺寸视觉测量系统的研究

针对服装行业中大批量量身定制,满足不同体格的人体尺寸测量需求,实现测量生产一体化,研究并实现了采用三视角线激光结构光的三维人体尺寸测量系统;该系统采用张氏标定法标定多个摄像机,并将求得的标定矩阵统一到一个摄像机下,然后对采集得到的扫描光条图像进行滤波去噪,光条细化等处理,最后实现测量目标的三维重构;实验结果表明,该系统成本较低,操作简便,测量精度能够满足制衣用人体尺寸的要求,具有较高的性价比,有广阔的市场前景。     

论孔子的美育思想及对当代大学教育启示

孔子作为我国最伟大的思想家之一,其思想丰富而驳杂。他在教育实践和教学理论的探索中,形成了独特的美育思想。本文从孔子的美育的思想基础、美育的形式、美育的目的以及其美育思想对现代大学教育的启示着手,探讨孔子美育思想的现代意义。     

儒家文化对于当代大学生道德建设作用的刍议

在马克思主义的指导下,考察儒家文化产生的历史背景,联系西方知识界对儒家文化的认识,有助于我们充分认识儒家文化中道德原则的现代性意义。在这一前提下,继承并创新儒家文化中道德原则的积极正确的部分,坚持思想政治教育的基本原则,构建当代大学生道德建设的民族传统。     

“儒墨互用”对韩愈思想影响之探微

孔、墨同出一源，墨子有取于孔，这是史实。但衰微灭亡的墨学在封建历代王朝的禁锢下，仍然发挥着影响作用，致力复古的韩愈在其精神世界中表现出的“儒墨互用”思想的一面，深刻说明了墨家学派在从“显学”转入地下，存于民间，保持着经久不衰的影响力。     

视图匹配中的定位技术

提出了一种基于不确定推理的视图匹配定位方法,并将其应用于计算机绘图自动评卷系统中。该方法在正式进行视图匹配前,先通过图元间的比较,找出待匹配视图间所有可能的相对位置,并通过计算找出其中最为可能的相对位置作为两视图的正确相对位置,以这一相对位置为基准进行后续的图元匹配。该方法在评卷系统的实际应用中效果良好。     

Obtaining complete 2 D view representation of polyhedra using concept of seedling single-view area

This article deals with construction of complete 2 D exact view models of polyhedral objects for visual identification systems. In particular, a new method and an algorithm views generation using the view sphere with perspective concept are described. A set of views generated by this method forms a complete view representation of the object. The method of ensuring completeness of the view representation by controlling covering of the view space (by single-view areas) is used in the presented algorithm. The perspective projection used for calculating the views, the total, tight covering of the view sphere by the single-view areas and -dimensionality of the views ensure, in our opinion, unambiguous and proper identification of polyhedral objects. The method consists in calculating single (any) view, determining the corresponding single-view area (so-called seedling single-view area) and then spiral propagation of neighbouring single-view areas until the whole view sphere is covered by them (i.e., until the border register containing the border between the covered and uncovered parts of the view sphere becomes empty). Having a complete set of single-view areas, we get a complete set of views as well. A method of determining single-view areas for convex polyhedra is also presented.     

由三维实体模型绘制组合体的"三视图"

本文研究在AutoCAD中由组合体的三维实体模型 ,通过投影转化获得组合体三视图的方法。采用这种方法绘制的三视图 ,与其三维实体之间具有内在的关系 ,所以不容易遗漏图线和产生投影错误 ,而且绘图效率较高     

在CASE工具中引入XML视图

从数据库设计的角度出发，在CASE(计算机辅助系统工程)工具中添加了创建XML视图的功能，也就是说在使用CASE对实体及其相互联系建模之后，在创建数据库对象的DDL语句的同时自动的创建此数据库的XML视图．具体的方法是将E-R模型转换为DTD来完成了这个数据库的XML视图的创建，一次性的完成了数据库的设计和此数据库的XML视图的创建，从而避免了程序员为了生成视图而对此数据库进行的二次开发，因此提高了工作效率．