How Can You Minimize or Control Changes to Project Schedules?

Controlling Schedule is the project management activity in which progress on projection activities is compared confronting Schedule baseline to understand whether project is ahead of the schedule or behind. Based on the deviation you can plan on corrective or preventive actions and manage changes to baseline. This procedure helps thus reduces the take chances of delivery slippage when managed well.

From sixth edition PMBOK focuses on Agile approach as well.

In instance your projection follows Agile methodology here is what this process should exercise –

• Determine current status of project based on completed deliverables against planned iteration
• At the end of each iteration conduct retrospective review meetings to identify improvement areas
• Conform project backlog based on event of retrospective review meetings
• Detect out iteration velocity (number of features implemented per fixed elapsing of iteration )
• If all this needs schedule to change, manage the changes and baseline it again

What goes into this action?

Schedule management plan and Schedule baselines from Project management plan are used as inputs for this process.

Schedule direction plan recommends methods and tools to use, such as Earned Value Management (EVM) and Schedule Variance (SV). Schedule baseline is the reference to compare current project progress against.

In essence, controlling activity is well-nigh comparing current projection progress information against the baseline.

Exam Pointer: Unremarkably, if work performance data is an input, piece of work performance information volition be an output. This is because when information is analyzed in a specific context such every bit what a process provides, it turns into information!

Baselines are crucial!

To update a schedule the project manager needs to sympathise schedule baseline, cost baseline, telescopic baseline, and functioning measurement baseline. The change to ane might also mean impact and changes to other baselines.

Work performance data

Agreement of work functioning data such every bit start/end dates of activities, percentage completion of WIP activities is needed to clarify impact of scope changes on schedule. These are all numbers. Raw data.

Apart from these, the project director needs to know schedule data such as activities, dependencies, activity attributes, resource histogram and schedule network diagrams. Resources calendars, project calendar, and project schedule is necessary.

How information technology is done?

Analyze of import data

In Develop Schedule process nosotros saw the unlike tools that tin can exist used to measure project functioning such equally Disquisitional path method or Disquisitional chain method. There could also exist boosted methods such as Earned Value Management- EVM (we'll see in Control Costs process) and Tendency analysis used to measure and analyze project performance.

If you used Critical Path method to develop schedule, then expect at activities on critical path or nigh critical path, for slippage. If whatever of these activities sideslip then project completion date will be impacted and hence these activities need to exist closely monitored.

If Critical Chain method was used to develop schedule, then watch the remaining buffer on critical chain activities or feeding chain activities for slippage indication. This is done past comparing planned buffer versus remaining buffer.

Feeding Concatenation buffer is the schedule buffer allocated at the stop of all activities on a network path that lead into Critical Chain. Develop Schedule process talks nigh near Critical Concatenation (or Disquisitional Path) method.

If Earned Value Direction (EVM) methodology is used and so schedule variance (SV) and schedule performance index (SPI) are utilized to measure how the project is doing against schedule.

Tendency assay helps you visually detect project performance over a period of time to make up one's mind whether it has been improving or degrading.

For Agile projects: Iteration burndown chart

Effigy: A burndown nautical chart plots remaining work in the Iteration on a daily basis (image courtesy wikipedia)

Although some projects utilize a burnup chart (piece of work completed is plotted against time), the most useful slice of information is the remaining work. This is plotted on a burndown chart.

A burndown chart plots 3 important time measurements, confronting fourth dimension –

• actual remaining work in the Iteration
• planned remaining work for the Iteration (also chosen Ideal burndown line)
• forecast based on work done till appointment – this shows the likely variance based on work washed till date

Some projects even plot remaining work on a daily basis.

Projection management software

Software (such as MS Project) can exist used to accurately measure schedule variation. Usage of software volition as well help united states of america modify certain activity-related parameters and run into their impact on disquisitional path and project completion dates.

Resource optimization techniques, Modeling techniques, Leads and lags, Schedule compression, Scheduling tool

These techniques are very useful and we have already seen them in Develop Schedule process.

Do you love mnemonics? Sentry this video to understand Lead and Lag in a way that you will NEVER ever forget! 🙂

Apart from the above, Trend assay, variance analysis, performance reviews, what-if scenarios are some of the techniques to determine the impact on the baselined schedule.

What's the consequence?

Work performance data

About of the processes in the Monitoring and Decision-making procedure group will take this output, which are the project performance indicators such as SV and SPI measurements for work packages.

Schedule forecasts

When y'all take electric current work operation information analyzed inside the context they go work performance information, and this can be used to forecast the future operation of the project schedule. Earned value direction indicators such as Gauge At Completion (EAC) are used.

Change requests

Again, Monitoring and Controlling processes may very well discover deviations (such as a change to baselines and the project manager will have to raise modify requests. Change requests must go through Perform Integrated Change Control procedure before becoming actionable.

Projection direction plan updates

We used the Schedule direction plan and Schedule baseline from the Project management plan as inputs. Both of these stand up a take chances to be updated based on changes done during this procedure. Based on the schedule changes even the cost of the project may modify hence Price baseline might be updated as well.

Project document updates

If schedule variance is found, new schedule network diagrams might need to exist adult based on the corrective actions planned. Other schedule outputs such as Milestone charts, resources histograms might modify, and fifty-fifty alternate schedules may need to be fatigued. Hence, both schedule information and schedule stand up to be updated due to this process. There could be other project documents such as risk register that you may update based on what you discover while executing this process.

Organizational process assets updates

Findings such every bit identified reasons for variation, corrective and preventive actions selected along their reasons are documented. Schedule data, project schedule, and fifty-fifty take a chance register are some of the documents that may get updated, and there could be others to be updated based on what you lot detect while executing this process.

To refer to one of my experiences, we were trying to provide a detailed schedule right at the proposal stage of a new sub-project for an existing client. Nosotros tried to compress the schedule (using crashing and fast-tracking) in order to satisfy our demanding customers. Scheduling practice took two of the states 2 weeks of fourth dimension with 12-xiv hours per 24-hour interval spent on it, and nosotros presented an updated schedule about 4 times. The customer'south undue focus on reducing the detailed schedule (worthless exercise since requirements were not detailed) ended up in considerable lost time. Finally, we realized this and settled for high-level estimates with suitable documented assumptions, and got project timelines approved.

Lesson learned?

Do not endeavour to requite a detailed schedule at the proposal stage, unless every minor particular of telescopic is worked out. You might end up spending likewise much time modifying the schedule, which anyway changes afterwards when you lot enter the planning phase to work out a detailed schedule.

This brings us to the stop of Schedule management lessons. In the next post let us wait at how Price management activities are planned on a project.

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