The Driving Relationship is determined based on the Relationship Free Float and the business rules for Driving Relationships. Relationship Free Float Relationship Free Float (Rel FF): The Free Float on the relationship. Calculated as Successor Early Start (assuming a Finish to Start relationship) - Relationship Early Finish on the predecessors' calendar. This field is computed... Continue Reading →
In Primavera P6, when we use "longest path" option to determine the critical path, the process to determine the longest path is as follows: The longest path activities are determined by reviewing the schedule backwards (starting from the last activity) through the driving relationships; If the relationship between two activities is driving, then both activities... Continue Reading →
In the schedule update of Primavera P6, there are occasionally gaps (empty spaces) between the actual bars and the remaining bars as illustrated in picture below. The reasons and solutions for the issue are described in this article. Reason 1: Primavera P6 schedules and displays the activities on Gantt chart in a very detailed and... Continue Reading →
In Primavera P6 Schedule Options, there are 2 options for "Calculate start-to-start lag from". The purpose of these option is described below. We have a simple project: Activity A has FS relationship with Activity B Activity B has SS relationship with Activity C with a lag value of 2 days. The schedule option in this... Continue Reading →
Microsoft Project version 2013 or later provide a function named "Task Path" to highlight the driving predecessor or successor in gantt chart but not provide a function to filter the activity. We can create a macro to filter activity based on "Task Path" function. Go to View -> Macros -> Visual Basic Right click on... Continue Reading →
What is Concurrent Delay? The term “concurrent delay” is commonly used to describe circumstances where owner-caused delays and contractor-caused delays occur at the same time. In true concurrency, the owner and contractor delay events (the cause of delay) both occur at the same time and the delay caused by the delay events start and finish... Continue Reading →
After performing delay analysis work in Primavera P6 or MS Project, we should make a summary graphic report for high-level manager. It would be difficult to get the overview of the analysis with a detail report like the following picture: A simple bar chart or timeline would be more effective and I would like to... Continue Reading →
Introduction An Collapsed As-Built / As-Built But-For Schedule Delay Analysis (ABBF) is a retrospective CPM schedule delay analysis technique that determines the earliest date that the required project completion activity, or various milestone activities could have been achieved but-for the owner-caused delays that occurred during the project. The amount of owner-caused delay determined from the ABBF Schedule... Continue Reading →
As a planner, we usually need a second monitor to be more productive. If you have an iPad, you can easily make it a second monitor. Here are the steps: On our iPad, go to App Store and search for "Duet Display". Buy this app (around 20 USD) and install it on our iPad. On... Continue Reading →
With Primavera P6 version 18, we can easily install the new version 18 and keep the old version (for example version 16) on the same computer. After download version 18 installation source, click on Setup: We will uncheck the option "Replace existing version": Click Install as usual: After finish installation, on the Start menu we... Continue Reading →
Problem: When P6 Professional version 16.2 connect to database SQLite version 16.1, the following notification is shown: When we accept to upgrade a SQLite database from version 16.1 to 16.2, the following error occurs: "SQLite database failed to upgrade" How to fix this problem? Solution: Do not double click on icon to run P6. Instead... Continue Reading →
Oracle has just released Primavera P6 18.8 and here's a look at what's new in Primavera P6 Professional version 18.8: Performance Percent Complete Field Based On Labor Units. The Performance % Complete - Labor Units field shows the percentage of the activity or project planned work that is currently complete as measured by labor units.Calculated as Earned Value Labor Units divided... Continue Reading →
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