Appreciate sharing your actual parameters too. I could use it actually for reference. By the way, does the 3.5 factor includes CADD? Just dont bother if you find my verification irrelevant...
Regards,
Arman
Member for
22 years 10 months
Member for22 years10 months
Submitted by Ronald Winter on Tue, 2006-08-08 22:32
Thanks for your response. The relation of 1.5 was a good start if I had only the reference of 9 months of Basic Engineering. I did not have TIME for talking to estimators and doing the exercise trough man-hours.
Well I got a detailed Eng of 12 month and my boss gave the factor of 3.5 for man-hours. I had the total man-hours for Basic Eng.; therefore I had the man-hours for Detailed Eng. (multiplied by 3.5)
Lastly the two estimates of duration and man-hours (both based on factors) gave me a better feeling for checking the IPC schedule (may be +/- 30% accurate, the portion of Engineering).
Building this EPC schedule, the most important for me, was the LLI procurement and Client contracting process. These two phases were based on real durations.
Cheers,
Carmen
Member for
19 years 10 months
Member for19 years11 months
Submitted by Armando Moriles on Mon, 2006-08-07 04:09
I tried to check my records, it holds basically applicable to projects like Gold Mining Processing Plant,etc. But, for project like access is a huge factor to conduct the geotechnical investigation which we considered to be part of the basic engineering, the factor is no longer applicable. I think the factor you have is a very good baseline to start with to derive indicative durations.
I would be willing to further establish with you this parameter depending upon the type of project.
Member for
19 years 10 monthsRE: Relation between Detailed eng. and Basic eng.
Ronald,
Thanks for your comments...
Carmen,
Appreciate sharing your actual parameters too. I could use it actually for reference. By the way, does the 3.5 factor includes CADD? Just dont bother if you find my verification irrelevant...
Regards,
Arman
Member for
22 years 10 monthsRE: Relation between Detailed eng. and Basic eng.
There is never enought time to do it right the first time, but always enought time to do it again correctly. Strange, isnt it?
Member for
21 years 4 monthsRE: Relation between Detailed eng. and Basic eng.
Armando,
Thanks for your response. The relation of 1.5 was a good start if I had only the reference of 9 months of Basic Engineering. I did not have TIME for talking to estimators and doing the exercise trough man-hours.
Well I got a detailed Eng of 12 month and my boss gave the factor of 3.5 for man-hours. I had the total man-hours for Basic Eng.; therefore I had the man-hours for Detailed Eng. (multiplied by 3.5)
Lastly the two estimates of duration and man-hours (both based on factors) gave me a better feeling for checking the IPC schedule (may be +/- 30% accurate, the portion of Engineering).
Building this EPC schedule, the most important for me, was the LLI procurement and Client contracting process. These two phases were based on real durations.
Cheers,
Carmen
Member for
19 years 10 monthsRE: Relation between Detailed eng. and Basic eng.
Carmen,
I tried to check my records, it holds basically applicable to projects like Gold Mining Processing Plant,etc. But, for project like access is a huge factor to conduct the geotechnical investigation which we considered to be part of the basic engineering, the factor is no longer applicable. I think the factor you have is a very good baseline to start with to derive indicative durations.
I would be willing to further establish with you this parameter depending upon the type of project.
Regards,
Arman