How to Change 5 Day Workweek to 7 Day Workweek calendar but keep Project Finish Date unchanged in Primavera P6

After 3 months of hard working, we finish a schedule with 5 Day Workweek calendar like picture:

Change 5 Day Workweek to 7 Day Workweek but keep Project Finish Date unchanged in Primavera P6-1

Then the Construction team said that “06-Mar-18 is the right Project finish date, but we’re talking about 7 Day Workweek, not 5 Day Workweek. Sorry pal, it must be a misunderstanding.”

What the he**?

Changing Activity calendar will change everything.

Normally, if we change calendar to 7 Day Workweek, all activity finish date will change like below picture:

Change 5 Day Workweek to 7 Day Workweek but keep Project Finish Date unchanged in Primavera P6-2

Now Project finish date is 25-Jan-18.

I will show you How to Change 5 Day Workweek to 7 Day Workweek but keep Project Finish Date unchanged. Continue reading “How to Change 5 Day Workweek to 7 Day Workweek calendar but keep Project Finish Date unchanged in Primavera P6”

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How does Primavera P6 summarize data in the Summary / Grouping Band

We may wonder How does P6 calculates and displays summary information for costs, quantities, user defined fields, dates, durations, float, progress…

I will explain it in this article.

These calculations and display summaries are based on the currently visible activities. Activities removed from the layout by filters are not included in the calculations and summaries.

Costs and quantities:

P6 totals cost and quantity data items, such as budgeted cost and budgeted quantity, by adding the values for each activity in the summary.

Dates: 

If you display early dates, P6 shows the earliest early (or actual) start and the latest early (or actual) finish dates. The same rules apply for late dates and baseline early and late dates. Continue reading “How does Primavera P6 summarize data in the Summary / Grouping Band”

How to define Resource Productivity in Primavera P6 and create schedule

When create a schedule, we can based on Resource Productivity to estimate duration.

For example:

  • We have a team which can cast 10 m3 of concrete per day (This is Productivity)
  • We have an Foundation which take 100 m3 concrete.
  • Duration of Foundation activity will be  100 / 10 = 10 days

Now we will do it in Primavera.

Supposed that we have a schedule like below picture:

How to define Productivity in Primavera P6 and create schedule-1

First we need to change Duration type of all activity to “Fixed Units/Time” Continue reading “How to define Resource Productivity in Primavera P6 and create schedule”

How Early and Late date are calculated in Start to Start relationship in Primavera P6

In Finish to Start relationship, Primavera calculate Early and Late date base on 2 process

  • Forward Pass (to calculate Early Start and Early Finish)

how-early-and-late-date-are-calculated-in-start-to-start-relationship-in-primavera-p6-1

  • Backward Pass (to calculate Late Start and Late Finish)

Continue reading “How Early and Late date are calculated in Start to Start relationship in Primavera P6”

Change Hours/Day in Calendar but keep Activity Duration unchanged in Primavera P6

We make a schedule using 8 hours/day calendar.

change-hours-day-in-calendar-but-keep-activity-duration-unchanged-in-primavera-p6-1

Now we want to change to 10 hours/day calendar.

change-hours-day-in-calendar-but-keep-activity-duration-unchanged-in-primavera-p6-2

We can see the Activity Duration now change to 8 days and Project Completion date is now earlier.

How can we change Hours/day but keep duration unchanged?

I will show you how to do it. Continue reading “Change Hours/Day in Calendar but keep Activity Duration unchanged in Primavera P6”