Primavera - Relationship between activity

• Open end activities are activities with no predecessor to start node or with no successor to finish node.
• An activity might have predecessor and successors and still be open ended.
• Dangling Logic - TomsBlog
• The Problem with Dangling Activities

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I suggest creating filters for dangling activities.

Best Regards, Rafael

The risks of splitting activities that shall be executed continuously can be far more dangerous than pretending concurrent logic does not exists. This is specially true if your model is to apply resource constraints, it might spread apart the segments of an activity that shall be continuous. In such case use of SS(+lag) in combination to FF(+lag) relationships will make a better model.

Best Regards, Rafael

technically a activity withonly a SS relationship would be open ended because you are only tying the start of it to something not the finsh of it.

 so the solution would be make it a compound relationship and have both a SS and a FF to the same successor. 

if you give me your email I can send you a pdf on why to use the compund relationsh and what can happen if you only use a SS relationship

Hello Jithin,

absolutely, this statement is right, every paragraph in the statement is right;

to answer your second question: an activity is open-end when the activity has no successor, either FS or FF; lag or lead has nothing to do with that

Alexandre 

Hello Jithin,

absolutely, this statement is right, every paragraph in the statement is right;

to answer your second question: an activity is open-end when the activity has no successor, either FS or FF; lag or lead has nothing to do with that

Alexandre