PMI-SP Exam Dumps : PMI Scheduling Professional

Fred should add lag time to each painting activity. Since lag time is waiting time, Fred will have to wait twenty-four hours after the priming is finished before he can start painting. What is a lag? A lag directs a delay in the successor activity. Lags require the dependent activity to have added either to the start date or to the finish date of the activity. For example, in a project of making radio-controlled airplanes, after applying glue and pasting stickers, it requires twenty-four hours to dry the glue. Any activity can be started after that only. This period, of twenty-four hours, is a lag.

Answer option C is incorrect. There is no reason to add an intermediary task as waiting. Adding lag time is the most appropriate as there are fewer activities to manage.

Answer option D is incorrect. Priming all of the room first and then painting all of the rooms would cause Fred to readjust the entire sequencing of activities. In addition, we do not know the reason why Fred has scheduled all the rooms to be primed and then painted. There may be successor activities in the project that need to enter each room, such as carpeting, as soon as a room has been painted. If that were the case the additional activities would have to wait for all of the priming to be completed and then the sequential rooms to be painted before they could start.

Answer option A is incorrect. Lead time actually moves activities closer together rather than farther apart. Lead time would cause the painting and priming activities to overlap, something that Fred does not want to happen. What is a lead? A lead allows an acceleration of the successor activity. It works just the opposite of lag. For example, in a software application project, before designing is fully completed for first phase, a program development group can start this phase programming. This overlapping of timing is a lead.

The schedule development process is used for selecting a scheduling method, scheduling tool, incorporating project specific data within that scheduling tool to develop a project specific schedule model, and generating project schedule. Schedule development is the process of analyzing activity sequences, durations, resource requirements, and schedule constraints to create the project schedule. Inserting the activities, durations, and resources into the scheduling tool generates a schedule with planned dates for completing the project activities. The goal of the schedule development is to form the processes such that the stakeholders can use it in the creation of the project. Schedule development consists of two main sections:

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1.Input and Data: The starting point for any schedule is the input of information developed during the planning process.

Define schedule scope

Breakdown structure relationships

Schedule specification

Feedback from stakeholders

Cost estimate model

2.Creating Schedule: This process provides basic knowledge in an outline structure for a study of the means, methods, and tools necessary for the project schedule development process.

Types of schedules

Activities

Durations

Relationships

Constraints and calendars

Cost and resource loading

Schedule quality analysis and compliance review

Schedule basis documentation

Answer option B is incorrect. Schedules maintenance is a method to account progress and to forecast trends, progress, and completion. Schedules are used to manage successful execution of projects. A schedule models the plan using resources and execution strategy to gather the project objectives. Periodic updates are undertaken to determine the actual progress achieved. Information obtained in the updating process, along with trend analysis and forecast of future progress, is reported to stakeholders. These progress updates include schedule maintenance to account for nominal changes to the execution plan. Depending upon the nature of change, the schedule and assumptions upon which the schedule was based significantly change. The schedule must be re-examined and updated, as necessary, to develop a new baseline for measuring further progress. Schedule maintenance consists of the following elements:

Baseline Schedule

Tracking Schedule Progress

Cost and Resource Management

Schedule Change Management

Acceleration

Schedule Maintenance Feedback

Answer option D is incorrect. Perform Integrated Change Control is the process of reviewing all change requests, approving changes, and controlling changes to the deliverables and organizational process assets in a project. Perform Integrated Change Control has to do with influencing the things that cause change, determining that the change is required or has happened, and managing the change.

Answer option A is incorrect. Constructability analysis is a process that starts in the initial planning phases and persists all over the entire planning cycle and into the implementation phase of the project. Constructability analysis during the planning process examines the methods and cost of installed equipment and materials, technology, site conditions, resources, and related infrastructure. The benefit of constructability analysis is to reduce both the time and cost of a project. Constructability analysis is repeatedly performed throughout the life-cycle of a project in order to optimize cost, plan, and schedule while mitigating risk. It is a very important process that needs to be performed early in planning to allow alternatives to be considered and integrated into the design.

The autoregressive moving average is an example of a causal/econometric method for the forecasting project performance. The casual/econometric forecasting method uses the assumption that it is possible to identify the underlying factors, which might influence the variable being forecasted. For example, sales of umbrellas might be associated with weather conditions. If the causes are understood, projections of the influencing variables can be made and used in the forecast. Some examples of casual/econometric forecasting method are as follows: Regression analysis using linear regression or non-linear regression Autoregressive moving average (ARMA) Autoregressive integrated moving average (ARIMA) Econometrics

Answer option B is incorrect. The time series method relies on the earned value, moving average, extrapolation, and growth curve.

Answer option A is incorrect. The judgmental methods use intuition, the Delphi method, and forecast by analogy.

Answer option C is incorrect. The ensemble forecasting is not part of the causal/econometric method for forecasting.