* Cost management plan.

 The cost management plan describes estimating methods that can be used and the

level of precision and accuracy required for the cost estimate.  

* Quality management plan. 

The quality management plan describes the activities and resources necessary for

the project management team to achieve the quality objectives set for the project.  

* Scope baseline. 

The scope baseline includes the project scope statement, WBS, and WBS dictionary.  

* Lessons learned register. 

Lessons learned earlier in the project with regard to developing cost estimates can be applied

to later phases in the project to improve the accuracy and precision of the cost estimates.  

* Project schedule. 

The schedule includes the type, quantity, and amount of time that team and physical resources

will be active on the project. The duration estimates will affect cost estimates when resources

are charged per unit of time and when there are seasonal fluctuations in costs.  

* Resource requirements.

 Resource requirements identify the types and quantities of resources required for each work package or activity.  

* Risk register.

 The risk register contains details of individual project risks that have been identified and prioritized, and for which risk responses are required.  

* Market conditions.

 These conditions describe what products, services, and results are available in the market, from whom, and under what terms and conditions.  

* Published commercial information.

 Resource cost rate information is often available from commercial databases that track

skills and human resource costs, and provide standard costs for material and equipment.  

* Exchange rates and inflation.

 For large-scale projects that extend multiple years with multiple currencies, the fluctuations of

currencies and inflation need to be understood and built into the Estimate Cost process.  

*Cost estimating policies,  

*Cost estimating templates,  

*Historical information and lessons learned repository.