总结正反两方面的经验 meaning in English

sum up both positive and negative experience

Construction project post evaluation is to analyze the whole project including analyzing project aim , enforcing procedure , project profit , project function , project influence , and sum up positive and negative experience and lesson , so that it can make decision - maker , administrant , erector improve the level of decision - making , management and construction . the paper introduces its status quo , questions ， developing necessity and development countermeasure currently
建设项目后评价是在项目投资完成以后，对项目目的、执行过程、效益、作用和影响所进行全面系统地分析，总结正反两方面的经验教训，使项目的决策者、管理者和建设者学习到更加科学合理的方法和策略，提高决策、管理和建设水平。