bars tricks and traps
DESCRIPTION
PrimaveraTRANSCRIPT
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Welcome to theWelcome to theEastwood Harris Pty Ltd
Primavera P6Version 7Version 7
TRICKS AND TRAPS PRESENTATION
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Purpose of the PresentationTo demonstrate the P6 Version 7 bars functions, and
To suggest some solutions for bar formatting issuesTo suggest some solutions for bar formatting issues.
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T iTopicsTRICKY P6 FUNCTIONS
Float on a Completed Activities
Relationships on a Baseline Bar
How to Create a Summary Bar
Negative Float on a Complete Activity
Why is Negative Float showing when it should not
Summary Duration Calculations
Baseline Bar showing when no baseline is set
TECHNIQUES
B ith t S iti lBars without Successors are critical
Multiple Project Float Calculation
Start or End Float
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Start or End Float
Activity Durations with Resources
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FLOAT ON A COMPLETED ACTIVITYBy default a Total Float bar is displayed on acompleted task, but the Float value is set to “Null”,this is not logical:this is not logical:
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FLOAT ON A COMPLETED ACTIVITYTo remove this set the filter on the Float Bar in the inthe Bars form to be Not Started or In Progress:
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FLOAT ON A COMPLETED ACTIVITY
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RELATIONSHIPS ON A BASELINE RELATIONSHIPS ON A BASELINE BAR
To remove relationships on the Baseline bar, move into the Baseline bars to the bottom of the Bars form:
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HOW DO YOU CREATE A HOW DO YOU CREATE A SUMMARY BAR
To create a new summary bar you will see that youcan not select Summary from the filter drop downbox:box:
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HOW DO YOU CREATE A SUMMARY HOW DO YOU CREATE A SUMMARY BAR
Open to the Bars form, Bar Settings tab and selectShow bar for grouping bands:
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NEGATIVE FLOAT IS SHOWING NEGATIVE FLOAT IS SHOWING WHEN IT SOULD NOT
Why do I have one day Negative Float:
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NEGATIVE FLOAT SHOULD NOT NEGATIVE FLOAT SHOULD NOT BE SHOWING
Al h th ti h h d li P6 d tAlways show the time when scheduling as P6 does nothave a default start or finish time and often selects00:00 as the time when setting actuals or constraints:
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A GAP BETWEEN THE DATA A GAP BETWEEN THE DATA DATE AND ACTIVITY BAR
When an activity is complete the Early Start andEarly Finish are set to the Data Date, 12 Oct atmidnight, NOT to the Actual Start as in many otherg , yproducts,When an activity is in progress the Early Start is setto the Activity calendar Start Date and Time NOT toto the Activity calendar Start Date and Time NOT tothe Actual Start as in many other products.
To prevent this stet the Data Date to the Activityp yCalendar Start Date:
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HOW DO SUMMARY DURATIONS HOW DO SUMMARY DURATIONS CALCULATE
What Bars are these?
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Database Default Calendar WBS and Database Default Calendar, WBS and Project Durations – Version 6.2 & Earlier
Th d ti f ll b d h P j t WBS dThe durations of all bands such as Project, WBS, andResources are calculated from:
The Database Default Calendar andThe Database Default Calendar and
The Hours/Day setting in the Edit, UserPreferences…, Time Units tab.
The following picture show the duration of theworkshop used in this publication set at firstly 5 daysper week, 8 hours per day and a duration of 35 dayspe ee , 8 ou s pe day a d a du at o o 35 dayswith an Hours/Day setting of 8 hours.
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Database Default Calendar WBS and
N ith th D f lt C l d h d t 7
Database Default Calendar, WBS and Project Durations – Version 6.2 & Earlier
Now with the Default Calendar changed to a 7 day/week 24 hour per day the duration of 139 days is clearly misleading,
The duration of the Project Summary WBS Nodes are The duration of the Project Summary WBS Nodes are also clearly misleading, the Research Node is not 31 days long.
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Database Default Calendar WBS and Database Default Calendar, WBS and Project Durations – Version 6.2 & Earlier
There are some issues that need to be carefullyThere are some issues that need to be carefullyconsidered when planning and controlling multipleprojects with different calendars in one databasewhen the correct durations in days are importantwhen the correct durations in days are important,
Primavera performs best when the all calendars in allthe projects are set with the same hours per day,p j p y,
If this is not possible you may consider:Showing durations in hours only,g y,
Creating a separate database for projects that require adifferent hours per day,
Not displaying the durations against Project nodes, WBSnodes and any other summary nodes by not checkingthe Show Group Totals in the Group and Sort form,
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Create a global change to put the correct duration in atext field.
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C l l ti f A ti it D ti iCalculation of Activity Duration inDays – Version 7
In earlier version of P6 the calculation of thedurations in hours for all calendars was set either bythe Administrator in Admin, Admin Preferences…,, ,Time Periods tab or by the User in the Edit, UserPreferences…, Time Units tab.
h d hPrimavera Version 7 has removed these two optionsabove and has created of a new calendar function foreach titled Hours per Time Period:
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C l l ti f A ti it D ti iCalculation of Activity Duration inDays – Version 7
The picture below has the Project Default calendar setas the 8hr/d & 5d/w and the picture shows that whenthe calendars are different then the Project Defaultjcalendar is used to calculate the summary durationfor WBS Nodes, Projects etc:
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A BASELINE BAR IS DISPLAYED A BASELINE BAR IS DISPLAYED WHEN NO BASELINE SET
This issue is due to the planned dates
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Pl d D tPlanned DatesThe Planned Dates are very complex and their
l l ti th d i tli d i th b k icalculation method is outlined in the book, insummary:
When an activity is Complete or In progress they When an activity is Complete or In-progress they match the status of the schedule before the last update, p
When an activity has Not Started they match theEarly Start and Early Finish.
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Pl d D t IPlanned Dates IssuesThe Planned Dates are dates that most schedulerswould not want displayed,
These dates are displayed as the Project Baselinebars and Primary User Baseline bars when nobaseline has been assigned,
You must be sure that all users set their PrimaryUser Baseline baselines before they display thebarsbars.
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BARS WITHOUT SUCCESSORS BARS WITHOUT SUCCESSORS ARE CRITICAL
This is useful if you have not complete a schedule andneed to present it but do not want to show all thel fl t b h th h d l h t h d ll thlong float bars when the schedule has not had all thesuccessors added:
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S h d li O ti M k OScheduling Options – Make OpenEnds Critical
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Make Open-ended Activities CriticalActivities without a successor as displayed as criticalwhen they have float this option makes the Latewhen they have float, this option makes the LateDates equal the Early Dates when an activity has nosuccessor.
Open-ends Not Critical:
Open-ends Critical:
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C l l t fl t b d fi i hCalculate float based on finish date of
New to Primavera Version 6.2:
Each projectOpened projects
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Compute Total Float asThere are three options for this calculation: There are three options for this calculation:
Start Float = Late Start – Early Start
Finish Float = Late Finish – Early Finish
Smallest of Start Float and Finish Float
Note: It can be seen from the pictures above that the
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pTotal Float bar only displays the Finish Float.
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Drive activity dates by defaultWhen this option is switched OFF it is possible for ap presource to calculate outside the activity duration,
When it is switched ON the resource durations areli k d t th ti it d tilinked to the activity duration:
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Activity DurationsAn Activity Duration is adopted from the longestR D tiResource Duration,
When more than one Resource has been assigned toan activity with different Units and/or Units/Time thean activity with different Units and/or Units/Time, theResources many have different durations,
In the following example the Activity Duration is 10days, which is calculated from David William’sResource Original Duration of 10 days:
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Resource LagA Resource may be assigned a Lag, the duration fromthe start of the activity to the point at which theResource commences work,
In the following example the Activity Duration is 12 In the following example the Activity Duration is 12 days, which is calculated from Angela Lowe’s Resource Original Lag of 7 days and Resource O i i l D ti f 5 dOriginal Duration of 5 days:
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COST MANAGEMENT USING WBS COST MANAGEMENT USING WBS ACTIVITIES AND EXPENSES
P6 was developed without the ability to catch andcollect costs at WBS Node,
Many software packages do collect costs at WBSNode which includes SAP,
This section will outline how one can use WBS This section will outline how one can use WBS Activities and Expenses to manage costs collected by another system and imported into P6.
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Set Up the User Definable FieldsIn order to import cost at WBS Node I suggest:In order to import cost at WBS Node I suggest:
Create a WBS Activity in WBS Node to manage costs.
Assign Costs to Expenses then you will not run into Assign Costs to Expenses, then you will not run into issues such as the Cost zeroing out when the Remaining Duration equals Zero as may happen with resources.
P6 Expenses only have Budget, Actual, Remainingand At Completion cost fieldsand At Completion cost fields.
Costs have a number of elements, including Budget,Committed, Received, Quality Checked, Invoices,Q yOutstanding Commitment against contracts andorders, Unallocated WBS funds (RemainingContingency).
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Contingency).
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Set Up the User Definable Fields –Set Up the User Definable Fields –continued….
To manage these cost fields:
Set up Expense User Definable Fields to import thecosts intocosts into.
Costs in the Expense User Definable Fields maythen be Global Changed into the appropriate Expenseg pp p pfield for reporting and comparing to the Baseline.
Set up Activity User Definable Fields to import the i di l h i l Ecosts into to display the costs in columns as Expense
User Definable Fields may not be displayed in Gantchart columns.
Both the Expense User Definable Fields and the ActivityUser Definable Fields are identical and the costs end upin three places Expense Costs Expense User Definable
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in three places, Expense Costs, Expense User DefinableFields and
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Set Up the User Definable Fields –Set Up the User Definable Fields –continued….
All the following fields contain the same costs:
Expense User Definable Fields which hold all thedifferent types of costs and are used to import costsdifferent types of costs and are used to import costsinto.
Expense Costs fields which are populated by ap p p yGlobal Change from the Expense User DefinableFields
A i i U D fi bl Fi ld ll i bActivity User Definable Fields allowing costs to beshow in Gantt Chart Columns.
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Set Up the User Definable Fields –Set Up the User Definable Fields –continued….
S t U D fi bl Fi ld b lSet up User Definable Fields as per below,
The Activity and Expense are identical,
Th “PO” fi k th d i th d t b dThe “PO” prefix keeps the order in the database andkeeps the fields together.
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Set Up the User Definable Fields –Set Up the User Definable Fields –continued….
All the following fields contain the same costs:
Expense User Definable Fields which hold all thedifferent types of costs and are used to import costsdifferent types of costs and are used to import costsinto.
Expense Costs fields which are populated by ap p p yGlobal Change from the Expense User DefinableFields
A i i U D fi bl Fi ld ll i bActivity User Definable Fields allowing costs to beshow in Gantt Chart Columns.
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Assign ExpensesAssign Expenses against the WBS Activities with theirBudget and At Completion Costs,
Baseline the project,
Update the Activities.
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E h UDS Fi ld E lExport the UDS Fields to ExcelExport the Activity and Expense UDF Fields to Excelto be populated and import, create a template as perbelow,
Filter just on WBS Activities:Filter just on WBS Activities:
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Update the Spread Sheet & ImportThe Activity and Expenses Spread Sheet will bothhave exactly the same fields,
Populate one TASK sheet and Copy & Paste to thePROJCOST sheet,
Import the data:Import the data:
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R i D tReview DataReview the data, the costs should be assigned againstth A ti it UDF d th E UDFthe Activity UDFs and the Expense UDFs:
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Gl b l Ch UDF i t EGlobal Change UDF into ExpenseColumns
Depending on what cost you want put where run aGlobal Change like the one below:
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Review DataThe UDF Values for Activities and Expenses should bethe same:
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