Researches indicate that problem decomposition strategy and visual analogy are helpful for novices to improve their design quality. However, whether novices could attain satisficing level or evaluate designs critically basing on these strategies are unknown. Hence, we try to uncover this through a character design task. Comparing novices' self-assessment with the experts' judgement, the results suggest novices achieve better performance with analogy and explicit index requirements in design solution. Nevertheless, index requirements are not effective for novices to self-evaluate critically. Although there is satisficing level gap between novices and experts, their evaluations of the design still maintain a positive correlation.