Explanation/Reference:
Explanation:
6.2.2.2 Rolling Wave Planning
Rolling wave planning is an iterative planning technique in which the work to be accomplished in the near term is planned in detail, while the work in the future is planned at a higher level. It is a form of progressive elaboration.
Therefore, work can exist at various levels of detail depending on where it is in the project life cycle. During early strategic planning, when information is less defined, work packages may be decomposed to the known level of detail. As more is known about the upcoming events in the near term, work packages can be decomposed into activities.
Process: 6.2 Define Activities
Definition: The process of identifying and documenting the specific actions to be performed to produce the project deliverables.
Key Benefit: The key benefit of this process is to break down work packages into activities that provide a basis for estimating, scheduling, executing, monitoring, and controlling the project work.
Inputs
Schedule management plan

Scope baseline

Enterprise environmental factors

Organizational process assets

Tools & Techniques
Decomposition

Rolling wave planning

Expert judgment

Outputs
Activity list

Activity attributes

Milestone list

Explanation/Reference:
Explanation:
7.2.2.2 Analogous Estimating
Analogous cost estimating uses the values such as scope, cost, budget, and duration or measures of scale such as size, weight, and complexity from a previous, similar project as the basis for estimating the same parameter or measurement for a current project. When estimating costs, this technique relies on the actual cost of previous, similar projects as the basis for estimating the cost of the current project. It is a gross value estimating approach, sometimes adjusted for known differences in project complexity.
Analogous cost estimating is frequently used to estimate a value when there is a limited amount of detailed information about the project, for example, in the early phases of a project. Analogous cost estimating uses historical information and expert judgment

Section: Volume E

Explanation/Reference:
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.