Hi, sorry for the unclear wording.
It's not necessary, that every task has a predecessor, but every task (except the last one, which defines the end of the project), must have a successor! Your second example illustrates what I meant. Obviously task E defines the end of the project, but if task b gets delayed, it could be that the project is finished although task E is not yet completed. That's why task E must have a successor. In some cases it can be useful, to define a milestone "Project finished" as last task, all tasks without a successor could use this task as their successor. CU Harald On Wed, 2005-11-09 at 16:06 -0500, gilh wrote: > On Wed, 2005-11-09 at 18:45 +0100, Harald Ulver wrote: > > Hi everyone, > > > > I just found a website by chance, which might be interesting for us. > > > > It's another way of implementing project networks in spreadsheets, with > > critical path analysis. > > > > http://ite.pubs.informs.org/Vol3No3/Ragsdale/ > > Great paper! Would be nice to make sure the Excel macros have an > analog in Calc and to try and re-implement this in Calc. > > > > > By the way: in my opinion it is absolutely essential, that every task > > has not only a predecessor, but also a successor! Otherwise this task > > could delay without having an effect on the end-date of the project! > > That's an interesting perspective but perhaps I've misunderstood your > point. What about the very first task(s) and very last tasks in a > project? Consider > > Task A -+-> Task B > | > +-> Task C > > In this example, Task A has no predecessor. Also, tasks B & C have no > successors. Or this more complex configuration ... > > Task A -+-> Task B > | > +-> Task C --+-> Task E > | > Task D ->+ > > ... in which case neither Task A nor Task D have predecessors. > > Gil > > > > > A good pm-tool should at least inform the user, if this is not the case. > > > > CU Harald > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
