Explanation/Reference:
Explanation:
Process: 12.2 Conduct Procurements
Definition: Conduct Procurements is the process of obtaining seller responses, selecting a seller, and awarding a contract.
Key Benefit: The key benefit of this process is that it provides alignment of internal and external stakeholder expectations through established agreements.
Inputs
1. Procurement management plan
2. Procurement documents
3. Source selection criteria
4. Seller proposals
5. Project documents
6. Make-or-buy decisions
7. Procurement statement of work
8. Organizational process assets
Tools & Techniques
1. Bidder conference
2. Proposal evaluation techniques
3. Independent estimates
4. Expert judgment
5. Advertising
6. Analytical techniques
7. Procurement negotiations
Outputs
1. .Selected sellers
2. .Agreements
3. .Resource calendars
4. .Change requests
5. .Project management plan updates
6. .Project documents updates

Section: Volume D
Explanation:
1.4.2 Portfolio Management
A portfolio refers to projects, programs, subportfolios, and operations managed as a group to achieve strategic objectives. The projects or programs of the portfolio may not necessarily be interdependent or directly related.
For example, an infrastructure firm that has the strategic objective of "maximizing the return on its investments" may put together a portfolio that includes a mix of projects in oil and gas, power, water, roads, rail, and airports.
From this mix, the firm may choose to manage related projects as one program. All of the power projects may be grouped together as a power program. Similarly, all of the water projects may be grouped together as a water program.
Thus, the power program and the water program become integral components of the enterprise portfolio of the infrastructure firm.