Computer software has been becoming more and more c om plex with the development of hardware. Thus, how to efficiently develop extensib le, maintainable and adaptable software occurs to be an urgent problem. The comp ...Computer software has been becoming more and more c om plex with the development of hardware. Thus, how to efficiently develop extensib le, maintainable and adaptable software occurs to be an urgent problem. The comp onent-based software development technique is a better method to solve the prob lem. In this paper, we first discuss the concept, description method and some fa miliar styles of software architecture, and then analyze the merits of using the software architecture to guide the software development. We also present a gene ral design method for component. Its applications are finally provided.展开更多
A hardware/software co-synthesis method is presented for SoC designs consisting of both hardware IP cores and software components on a graph-theoretic formulation. Given a SoC integrated with a set of functions and a ...A hardware/software co-synthesis method is presented for SoC designs consisting of both hardware IP cores and software components on a graph-theoretic formulation. Given a SoC integrated with a set of functions and a set of performance factors, a core for each function is selected from a set of alternative IP cores and software components, and optimal partitions is found in a way to evenly balance the performance factors and to ultimately reduce the overall cost, size, power consumption and runtime of the core-based SoC. The algorithm formulates IP cores and components into the corresponding mathematical models, presents a graph-theoretic model for finding the optimal partitions of SoC design and transforms SoC hardware/software co-synthesis problem into finding optimal paths in a weighted, directed graph. Overcoming the three main deficiencies of the traditional methods, this method can work automatically, evaluate more performance factors at the same time and meet the particularity of SoC designs. At last, the approach is illustrated that is practical and effective through partitioning a practical system.展开更多
供应链级别的开源软件及组件复用是当前软件开发的主流模式.该模式避免了重复开发,降低了研发成本,提高了开发效率,但是也不可避免地存在组件的来源未知,成分不清,漏洞不明,许可证违规等问题.为解决上述问题,研究人员提出了软件物料清单...供应链级别的开源软件及组件复用是当前软件开发的主流模式.该模式避免了重复开发,降低了研发成本,提高了开发效率,但是也不可避免地存在组件的来源未知,成分不清,漏洞不明,许可证违规等问题.为解决上述问题,研究人员提出了软件物料清单(software bill of material,SBOM).SBOM详细列出了构成软件的组件及组件之间的关系,揭示了潜在的和已知的威胁,使软件透明化.自提出以来,国内外研究人员针对SBOM的研究主要聚焦在SBOM的现状、应用和工具上,缺少理论化、体系化的研究.综述SBOM的背景、基本概念、生成技术、工具及性能分析、应用、挑战与趋势,并提出融合细粒度安全漏洞感知,许可证冲突检测的SBOM+,以期从概念、技术、工具、应用和发展等方面为SBOM、软件开发、供应链安全等研究人员提供支撑.展开更多
文摘Computer software has been becoming more and more c om plex with the development of hardware. Thus, how to efficiently develop extensib le, maintainable and adaptable software occurs to be an urgent problem. The comp onent-based software development technique is a better method to solve the prob lem. In this paper, we first discuss the concept, description method and some fa miliar styles of software architecture, and then analyze the merits of using the software architecture to guide the software development. We also present a gene ral design method for component. Its applications are finally provided.
基金This project was supported by the Defense Pre-Research Project of the ‘Tenth Five-Year-Plan’ of China(41315040106) and the National"863"High Technology Research and Development Programof China (2003AAIZ2210)
文摘A hardware/software co-synthesis method is presented for SoC designs consisting of both hardware IP cores and software components on a graph-theoretic formulation. Given a SoC integrated with a set of functions and a set of performance factors, a core for each function is selected from a set of alternative IP cores and software components, and optimal partitions is found in a way to evenly balance the performance factors and to ultimately reduce the overall cost, size, power consumption and runtime of the core-based SoC. The algorithm formulates IP cores and components into the corresponding mathematical models, presents a graph-theoretic model for finding the optimal partitions of SoC design and transforms SoC hardware/software co-synthesis problem into finding optimal paths in a weighted, directed graph. Overcoming the three main deficiencies of the traditional methods, this method can work automatically, evaluate more performance factors at the same time and meet the particularity of SoC designs. At last, the approach is illustrated that is practical and effective through partitioning a practical system.
文摘供应链级别的开源软件及组件复用是当前软件开发的主流模式.该模式避免了重复开发,降低了研发成本,提高了开发效率,但是也不可避免地存在组件的来源未知,成分不清,漏洞不明,许可证违规等问题.为解决上述问题,研究人员提出了软件物料清单(software bill of material,SBOM).SBOM详细列出了构成软件的组件及组件之间的关系,揭示了潜在的和已知的威胁,使软件透明化.自提出以来,国内外研究人员针对SBOM的研究主要聚焦在SBOM的现状、应用和工具上,缺少理论化、体系化的研究.综述SBOM的背景、基本概念、生成技术、工具及性能分析、应用、挑战与趋势,并提出融合细粒度安全漏洞感知,许可证冲突检测的SBOM+,以期从概念、技术、工具、应用和发展等方面为SBOM、软件开发、供应链安全等研究人员提供支撑.
