Product backlog: A basis of agile product development. The requirements for a system, expressed as a prioritized list of product backlog items. These include both functional and non-functional customer requirements, as well as technical team-generated requirements
产品积压：敏捷产品开发的基础。 对系统的要求，表示为产品积压项目的优先级列表。 这些包括功能和非功能客户要求，以及技术团队生成的要求
