Developing the engineering schedule

S
Sayat Nurabaev 👤 Member for 17 years 5 months

Hello all

Does anyone have a good (very detailed) detail design engineering schedule to have a look at? I am interested in how the activities and client review circulation period are structured. If someone says yes can you sent it to me at [email protected]

Thanks a lot.

Sayat

G
Gary Whitehead 👤 Member for 17 years 2 months

DDR list all design documents that need to be produced in order to fullfill the engineering scope.

It is based on the deliverables list, but expanded to include all documents which will be issued for (internal and/or external) approval. For example, a deliverable might be "P&IDs", the DDR would list each P&ID as a seperate entry.



The DDR typically also tracks the status of the document through generation, approval steps, and issue for construction.

Often, it will also carry a weighting factor which, when combined with a pre-agreed percentage complete for each step in the document’s life, give you the overall Engineering S-curve.



As previosuly stated, the DDR is a live document which changes throughout the engineering phase (you will only be able to estimate thre total number of P&IDs which will actually be required at the start of design, for example)

F
Fernando Tubiao 👤 Member for 16 years 7 months

Thanks for the replies. Could you please tell me what’s in a DDR? Is the DDR the same as the Deliverables list?

S
Samer Zawaydeh 👤 Member for 17 years 10 months

Dear Fernando,



You need to know the scope in your Engineering Contact at the Design stage. It will state the deliverable, and the time for each deliverable. Also, you need to dig up the review cycle by the client or any other entity.



Best Regards,



Samer

A
Anoon Iimos 👤 Member for 19 years 8 months

For me, Deliverable List, but it’s very difficult to define it from basic engineering to detailed engineering.



"DDR" is only a record, and it’s a running record, when to close it? who knows?

G
Gary Whitehead 👤 Member for 17 years 2 months

The contract & DDR (design document register) should give you everything you need.

G
Gary Whitehead 👤 Member for 17 years 2 months

P&ID = Piping & Instrumentation Diagram. (Sometimes called Process & Instrumentation Diagram)



Most commonly used in the Oil & Gas industry.

Forum Sponsor

Top Posters

Julian Pegg
1 posts
Peter Nagy
2 posts
Raymund de Laza
17 posts
Syed_Asad
0 posts
Tony Greyvenstein
0 posts
Ahmed Al-Jubouri
13 posts
Umar Alvi
3 posts
Sibusiso Mahlalela
0 posts
Michael Samanyayi
3 posts
Simon Gumede
0 posts