WBS: at which level should I put the E-P-C

D
dewa kutu 👤 Member for 13 years 9 months

Hello guys,

I'm currently developing the WBS concept, and generally the project has this EPC (Engineering Procurement and Construction) components under it's WBS. My question is at which level should I put the E-P-C ?

following are 2 options that I'm considering

 

Option 1 (put it on lvl 1)

lvl 0: Power plant
lvl 1: Engineering, Procurement, Construction

Lvl 2: E - basic engineering, detail engineering 

        P - transportation type

        C - Boiler, Turbine, Generator, BOP

Lvl 3: Boiler - civil, mechanical, electrical works

 

Option 2 (put it on the lowest level)

lvl 0: Power plant

lvl 1: Boiler, Turbine, Generator, BOP

Lvl 2: Boiler - Civil, Mechanical, Electrical works

lvl 3: Civil works - Engineering, Procurement, Construction

 

My concern with option 1 is that, you could only track the overall Construction progress. If you were asked to track Construction progress for Boiler, you definitely need option 2, am I right ?

So my point is, it seems like option 1 gives you a more high level control over the project while option 2, by putting EPC at the lowest level , you could track the E or P or C progress for each part of the power plant.

Please enlighten me...........  any thought/ ideas/ comments are welcome

Thank you in advanced.

J
Jean-Yves Moine 👤 Member for 17 years 4 months

Hi Dewa,

 

If phases are level 1, it is a phases oriented schedule. If main Products are in level 1, it is a Product oriented schedule.

But as say Daniel, with codification, you can turn the schedule in one click, so you can have the two visions of your schedule.

I think, you can cut the project in subprojects (different files), by phases if there will be one planning engineer for the construction phase, or by main Product if each entity does its schedule. So, the level 1 of the schedule, or the way to cut the project in subprojects, depends of the organization.

BR, JYM

http://3d-wbs.blogspot.fr/

Z
Zak Nazif 👤 Member for 15 years 2 months

Hi Dewa,

What Daniel is recommending is the right way to go.  However, you have to take into consideration that in option 1 you will have to go down to the lowest level (probably level 5), where the Work Packages are defined.

D
Daniel Limson 👤 Member for 24 years 7 months

Hi Dewa,

You can actually do both by using Activity Codes, You can use WBS for your Option 1, and Activity Codes for option 2 Structure or you can have a sub level (option 2) under Engineeriing, Procurement and Construction.

Regards,

Daniel

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