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Within the context of software product lines for business applications, early indicators of the software product line architecture quality attributes can be used in order to avoid low-quality products during the later stages of product development. Today's application engineering is not mainly concerned with business user requirements, as it should be, but in practice we find it concerned with the technical complexity and also, not enough decoupled from directly using of too many external third party components. In this paper we propose a „Platform Framework Responsibility“ metrics which can be used as an early indicators of the future product's quality. The domain and application engineering processes that use and apply the early indicators of the platform framework quality attributes will help ensure that final products are stable, maintainable and better decoupled from external third party component's dependencies.