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Most current research in Component-Based Systems Engineering (CBSE) focuses on design and integration processes. There is little interest in the requirements engineering and product evaluation/selection processes that must precede design and integration. Also most current methods and tools support systems design and integration but neglect the requirements engineering and product evaluation/selection processes. However, in spite of this lack of focus on requirements engineering, a consensus seems to be emerging that the CBSE development process should be an iterative one of requirements engineering, systems design, product evaluation/selection and systems integration. This paper proposes a new method, PORE, to address the lack of requirements engineering methods and product evaluation/selection process guidance for the CBSE process. The paper ends with a `vision' for future research directions for component-based systems engineering development process. Keywords: PORE, systems ...