Software performance engineering

软件系统性能差(指长时间延迟和能力受限)是系统开发人员面临的一个严重问题，这给软件供应商和用户造成了巨大的经济损失。技术的快速发展和项目的时间压力需要更快的技术来分析设计并在设计周期的早期发现问题。这就需要系统的健壮模型，尤其是软件的健壮模型。这个项目涉及更好的模型、快速的模型创建、基于组件的建模，以及创建用于指定软件性能属性的标准，以便设计人员可以轻松地创建模型。它还开发了建议设计改进和高性能设计的方法，并使用相同的模型来研究可靠性并使系统适应其工作负载或环境(自主计算)的变化。

Poor performance of software systems (in the sense of long delays and restricted capacities) is a serious problem for system developers, which causes significant economic loss to software suppliers and users. The rapid pace of technology and time pressure on projects demand faster techniques for analyzing designs and finding problems early in a design cycle. This demands robust models of the system, especially of the software. This project is concerned with better models, rapid model creation, component-based modeling, and with creating standards for specifying performance attributes of software, so that designers can create models easily. It also develops methods to suggest design improvements and high-performance designs, and uses the same models to study reliability and to adapt systems to changes in their workload or environment (autonomic computing).