120420 how p6 resource dependant activities calculate

8/12/2019 120420 How P6 Resource Dependant Activities Calculate

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Welcome to the

Eastwood Harris Pty LtdPrimavera P6

H o w Re so u r c e D r i v e nA c t i v i t i e s Ca l cu l a t e

Co p y r i g h t o f Ea s t w o o d H a r r i s P t y L t d


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Aim

The aim of this presentation shows how a P6

Resources Driven Activities calculate, We will explore the interaction of the Resource and

Task calendars,

This will demonstrate that P6 calculates differently toother software scheduling software.


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Method of Presentation

Each of the following slides will show how activities

calculate with different: Calendars,

Activity types and

Resources calendar.


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Task Dependant Activitywithout a Resource The picture below shows:

A ProjectStart at Midnight on Saturday,

A 40 hour (5 days) Task Dependent activity,

The Task is assigned a 5 day per week and 8 hour perday calendar, and

No Resource assignment,

The activity is starting at 08:00 on Monday which isacknowledging the Task Calendar to calculate the

activity Start Date and Time not the Project Start:


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Task Dependant Activity witha Resource The picture below shows:

A project with a Start at Midnight on Saturday,

A 40 hour (5 days) Task Dependent activity,

The Task is assigned a 5 d/w and 8 h/d calendar, and

A Resource assignment which is assigned a 7day per

week and 24 hour per day calendar,

The activity is starting at 08:00 on Monday, thusacknowledging the Task Calendar to calculate thetask Start Date and to calculate the Resource Work.


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Resource Dependant Activitywith a Resource The picture below shows:

A project with a Start at Midnight on Saturday,

A 40 hour (5 days) Resource Dependent activity,

The Task is assigned a 5 d/w and 8 h/d calendar, and

A Resource assignment which is assigned a 7day perweek and 24 hour per day calendar,

Comments on the next slide:


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Resource Dependant Activitywith a Resource, continued The activity is starting at 08:00 on Monday which is

acknowledging the Task Calendar to calculate thetask Start Date, NOT the Resource Calendar as withsome other products,

The Work is being scheduled on the Resource

calendar, Bar Necking is misleading as it is being displayed on

the Task Calendar not the Resource Calendar:


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Two Linked Resource DependantActivities with Resources When two Linked Resource Dependant Activities:

Assigned 5 day per week and 8 hours per day calendar,

With Resources assigned a 24 h/d & 7d/w calendar,

The start of the second task is delayed until the startof the Task Calendar next working period,

This is a like a Start Activity on a New Day function:


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Change the Task Calendar to a24 Hour per Day 7 Days perWeek Calendar

Once the Task Calendar is set to a 24 Hour per Day 7Days per Week,

Then the Resource calendars are acknowledged forthe start of the work.


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Two Resources assigned to anActivity with Different Calendars When two resources are assigned to a Resource

Dependant Task with different calendars: Each resource is scheduled their 40h work according to

their own calendar,

The Activity Duration (161 hours) is calculated from the

first Resource Start Time to the last Resource Finishtime.


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Summary Task Dependant activities ignore Resource calendars,

Resource Dependant activities: Will always acknowledge the Task calendar for the start

of an activity and may delay the start of an activity. Toprevent a delay to an activity start date you mayconsider making sure the Activity Calendar has longer

working hours than the Resources calendars.

Resources work is scheduled when the resource isavailable as determined by the Resource Calendar.

Resources work independently of each other and a

P3/SureTrak Activity Type of Meeting, where bothresources have to be available for the work to bescheduled, is not available.

Necking is displayed using the Task Calendar and NOT

Resource Calendars.


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Than you for attending the

Eastwood Harris Pty LtdPrimavera P6Version 7

H o w Re so u r c e D r i v e n

A c t i v i t i e s Ca l cu l a t e w w w .e h .c o m .a u Co p y r i g h t o f Ea s t w o o d H a r r i s P t y L t d

120420 how p6 resource dependant activities calculate

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