Section: Volume E
Explanation:
12.4.3.2 Organizational Process Assets Updates
Elements of the organizational process assets that may be updated include, but are not limited to:
Procurement file. A complete set of indexed contract documentation, including the closed contract, is

prepared for inclusion with the final project fles.
Deliverable acceptance. Documentation of formal acceptance of seller-provided deliverables may be

required to be retained by the organization. The Close Procurement process ensures this documentation requirement is satisfed. Requirements for formal deliverable acceptance and how to address nonconforming deliverables are usually defined in the agreement.
Lessons learned documentation. Lessons learned, what has been experienced, and process improvement

recommendations, should be developed for the project fle to improve future procurements.
Process: 12.4 Close Procurements
Definition: The process of completing each project procurement.
Key Benefit: The key benefit of this process is that it documents agreements and related documentation for future reference.
Inputs
* Project management plan
* Procurement documents
Tools & Techniques
* Procurement audits
* Procurement negotiations
* Records management system
Outputs
* Closed procurements
* Organizational process assets updates

Explanation/Reference:
Explanation:
Control charts, are used to determine whether or not a process is stable or has predictable performance.
Upper and lower specification limits are based on requirements of the agreement. They reflect the maximum and minimum values allowed. There may be penalties associated with exceeding the specification limits. Upper and lower control limits are different from specification limits. The control limits are determined using standard statistical calculations and principles to ultimately establish the natural capability for a stable process. The project manager and appropriate stakeholders may use the statistically calculated control limits to identify the points at which corrective action will be taken to prevent unnatural performance. The corrective action typically seeks to maintain the natural stability of a stable and capable process. For repetitive processes, the control limits are generally set at ±3 s around a process mean that has been set at 0 s. A process is considered out of control when: (1) a data point exceeds a control limit; (2) seven consecutive plot points are above the mean; or (3) seven consecutive plot points are below the mean. Control charts can be used to monitor various types of output variables.
Although used most frequently to track repetitive activities required for producing manufactured lots, control charts may also be used to monitor cost and schedule variances, volume, and frequency of scope changes, or other management results to help determine if the project management processes are in control.