Today, the energy consumption of computers represents a significant part of the overall consump-tion. The purpose of this article is to apply object and architectural metrics to observe the impact on applica-tion consumption. This article focuses on the most common object applications to date, and their architec-tures that are already useful to optimize the reusability, composability or dynamicity of these applications. To do this, consumption must be evaluated and compared according to the variations of object and architec-tural metrics. These observations help to determine how effective these metrics could be.