Abstract: A methodology and related software design environment for the development of performance-engineered object-oriented distributed systems is essential. In this research, a performance-engineered design framework that utilizes the system architecture and object-oriented software design techniques of the Unified Modeling Language (UML) and the architecture of the Hierarchical Performance Model (HPM) is developed to assist designers in evaluating alternatives for performance enhancement. The developed framework integrates the architectural, structural and behavioral components of an application with the performance parameters required for performance model generation and evaluation during the software design process. Performance views for the presentation of performance information and selection of critical path scenarios along with an example are briefly described.