Jack, you wrote that "I suspect that most project environments are NOT in this situation." I disagree. Project usually consists of phases where different...
Prasad said: Working with job shop production systems, I do not see bad practices like student syndrome, multi-tasking, etc. I guess I am sensing one limb of...
"Multi-tasking is similar to task preemption in scheduling. Fortunately, many production systems do not allow task preemption." It's not clear to me, what you...
Hi, Prasad I suggest management must subordinate all their resources to the buffer-driven task priority. Task priority frequently is not the same as project...
Hi Tony, Task preemption means that you discontinue the processing of a job in order to process some other job(s) and resume the processing later. My...
Hi Jim, <snip> As you say a manager can attempt to control student syndrome, if he can see it. With visible output this maybe be much easier than it is with...
Hi guys, I am a final year student at the National University of Singapore doing a project on Critical Chain. I'd appreciate if you guys, especially those in...
Tony - ... more ... In my experience, this is a tricky distinction. Expediting, as you define it, has exactly the same problems as multitasking at a micro...
Rob There are some medical conditions, including frontal lobe epilepsy that appear to benefit from cigarette smoking. This does not mean, however, we should...
My knee-jerk response would be that there could never be a clear-cut rule. There are times when, no matter how well things are planned and executed, that you...
Wouldn't this just be a case where the constraint has changed to this new and vitally important task? Assuming you are looking at the big picture, there has to...
Hi Justin, I agree that multitasking is bad in general. I guess you have gone too far in criticising it. Therefore, I am tempted to project a balanced view of...
I avoid quite energetically, the terms good multixxxxxxx and bad multixxxxxxx, because they've created nothing but confusion ever since the distinction between...
Hello, What if we had a function, f(), that when evaluated gave us the absolute best order in which to complete all pending tasks on all projects? Evaluating...
"Therefore, I am tempted to project a balanced view of multitasking." For knowledge-work companies, each project is not unlike a relay-race. The first company...
Well, I am considering a different scenario where the progress/status of one or more ongoing tasks may decide whether a specific task must be continued at this...
Such an evaluation function can be developed even for complex project/production management if the system is totally deterministic provided we decide what to...
Hi, Rob The rule I use is "multitasking that extends the duration of a project task is bad multitasking" That allows for things like allowing the mice to grow...
Hi Prasad, look at http://www.spiderproject.ru/library/london.ppt#289,26,Multitasking - there is an example of "good multitasking" (or preemption - does not ...
Hi Vladimir, It is really a nice example. I come across such situations in my daily life sometimes. When I take a little time off from my ongoing activity and...
Vladimir, The example in your PPT file is a bit sparse on explanation. Would you care to elaborate, for the sake of clarity? Nevertheless, you and Prasad...
Hi Tony, <snip> you imply that your few exceptions should determine the behavior rule for all the resources all the time.</snip> No, this is not what we meant....
Tony, my example shows that multitasking is not always bad and Prasad gave perfect explanation of the situation when it is useful. "My software" optimizes...
Prasad wrote: Well, I am considering a different scenario where the progress/status of one or more ongoing tasks may decide whether a specific task must be...
Hi John, usually we set expected NPV at some future moment as the criterion of the project success. You can estimate management decisions (not only ...
Vladimir wrote: Hi John, usually we set expected NPV at some future moment as the criterion of the project success. You can estimate management decisions (not...
The situation that you describe happens only when a plan is inadequately defined and when there is no real-time operational measurement to guide task ...
Jim, estimating any action we take into consideration resource, financial (such as credit limit) and supply constraints (this we call resource constrained...
Tony, planning the work we cannot forecast at what moment resource that is assigned to the long task will be needed at another task. When you plan it depends...
Hi Tony, I am just adding a few of my views (in my own words) to what Vladimir said. <snip>The situation that you describe happens only when a plan is...
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