A framework for utility-based service oriented design in SASSY

  • Authors:

  • Daniel A. Menascé;John M. Ewing;Hassan Gomaa;Sam Malex;João P. Sousa

  • Affiliations:

  • George Mason University, Fairfax, VA, USA;George Mason University, Fairfax, VA, USA;George Mason University, Fairfax, VA, USA;George Mason University, Fairfax, VA, USA;George Mason University, Fairfax, VA, USA

  • Venue:
  • Proceedings of the first joint WOSP/SIPEW international conference on Performance engineering
  • Year:
  • 2010

Quantified Score

Hi-index 0.00

Visualization

Abstract

The architecture of a software system has a significant impact on its quality of service (QoS) as measured by several performance metrics such as execution time, availability, throughput, and security. This paper presents a framework that is part of a large project called SASSY (Self-Architecting Software Systems), whose goal is to allow domain experts to specify the system requirements using a visual activity-based language. The SASSY framework automatically generates a base architecture that corresponds to the requirements. Then SASSY generates a new architecture, derived from the base architecture, that optimizes a utility function for the entire system. The utility function is a multivariate function of several QoS metrics. The paper shows a complete example and illustrates how SASSY automatically adapts to changes in the environment's QoS features.