“ACQ.4 供应商监控”的适用范围
当产品中的某一部分（如：某组件）需要委托供应商开发，且供应商是根据客户要求进行定制化开发的，适用于”ACQ.4供应商监控”。即：供应商需要根据客户要求，实施特定的工程活动。
不适用ACQ.4供应商监控的例子：供应商提供商业现货(COTS)组件，且不提供维护服务（原因：无定制化，无特定的工程活动）
（1）监控所有的供应商
[ACQ.4.RL.1] If not all suppliers, excluding suppliers without any support, involved in the project are monitored according ACQ.4, PA1.1 must not be rated F.
老杨解读：在项目中，如果不是所有的供应商（除非没有任何支持的供应商）都根据ACQ.4进行监控，则PA1.1不能被打分为F（完全满足）。
（2）与供应商之间的协议
与供应商之间的协议，需包括：
a) supplier‘s project content and scope 供应商项目的内容和范围
b) exchanged information between customer and supplier 客户与供应商之间需交换的信息
c) joint activities 联合活动
d) joint processes and interfaces 联合过程和接口
e) responsibilities and stakeholders 责任和利益相关者
f) joint project management 联合项目管理
g) test specification and testing activities 测试规范和测试活动
h) joint problem and change management 联合的问题和变更管理
i) joint reporting and reviews 联合的报告和评审
j) escalation mechanism 升级机制
[ACQ.4.RL.2] If agreements between supplier and customer are incomplete with respect to allaspects above, the indicator BP1 shall be downrated.
老杨解读：如果与供应商之间的协议没有包括如上的部分，则应降低BP1的打分。
（3）与主客户协议之间的一致性
[ACQ.4.RC.1] If relevant agreed requirements of the customer's customer (e.g. OEM), are not part of agreements between supplier and customer, the indicator BP1 should be downrated.
老杨解读：如果与客户的客户（如：OEM）之间的协议中的必要内容，没有包括在与供应商之间的协议中，则应降低BP1的打分。
（4）ACQ.4的关系图
（4.1）ACQ.4内的打分一致性
[ACQ.4.RL.3] If the indicator BP1 is downrated due to incomplete agreements between supplier and customer (see ACQ.4.RL.2), the corresponding indicators (BP2, BP3, BP4) shall be downrated.
老杨解读：如果由于与供应商之间的协议的不完整，而降低BP1的打分，则也要相应降低BP2, BP3, BP4的打分。
[ACQ.4.RL.4] If the indicator BP2 is downrated due to incomplete exchange of all agreed information necessary for reviewing technical development, the indicator BP3 shall be downrated.
老杨解读：如果由于与供应商之间的关于技术开发方面的信息交换不完整，而降低BP2的打分，则也要相应降低BP3的打分。
[ACQ.4.RL.5] If the indicator BP2 is downrated due to incomplete exchange of all agreed information necessary for reviewing the progress of the supplier, the indicator BP4 shall be downrated.
老杨解读：如果由于与供应商之间的关于项目进展方面的信息交换不完整，而降低BP2的打分，则也要相应降低BP4的打分。
[ACQ.4.RC.2] If the indicator BP2, BP3 or BP4 are downrated due to identified non-conformances which are not managed as corrective actions, the indicator BP5 should be downrated.
老杨解读：如果由于识别的不符合问题没有作为纠正措施管理起来而降低BP2, BP3, BP4的打分，则也要降低BP5的打分。
（4.2）ACQ.4与其它过程之间的打分一致性
[ACQ.4.RC.3] If BP1 is downrated due to incomplete agreements between supplier and customer (see ACQ.4.RL.2), this should be in line with the rating of the related BP indicators of relevant processes of the project scope.
老杨解读：如果由于与供应商之间的协议不完整而降低BP1的打分，则该打分需要与相应过程的对应BP相一致。
例如：如果供应商开发某个软件组件，软件组件的接口信息不完整，则SWE.2软件架构设计的相应BP也应降低打分。
[ACQ.4.RC.4] If BP5 is downrated due to gaps in analyzing, tracking and control of deviations from the agreed project plans, this should be in line with the rating of PA1.1 of SUP.9 Problem Resolution Management.
老杨解读：分析、跟踪和控制与约定的项目计划的偏差方面如果做的不足而降低BP5的打分，则该打分需要与”SUP.9问题解决管理”的PA1.1相一致。
