IPD vs traditional process
The table shows the difference between
traditional project delivery and integrated project delivery utilizing BIM. IPD
brings the most out of BIM process and that’s the reason I included it here.|
Characteristics
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Traditional methods
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IPD utilizing BIM
|
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Length of the project
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Depends on the type of method;
example from before: total contract can be quite fast
|
Generally faster than traditional
method, because of short buyout and construction phase.
|
|
Quality
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In the tendering phase the mostly chosen bid depends
on price, however cheap doesn’t always mean good quality. Total contract
suggests standard quality or minimum requirements from total contractor.
|
Integrated team shares the ideas and choose best possible
quality for the project.
|
|
Costs
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Depends on the type of method;
Total contractor will choose the cheap solutions and in the tender phase the
highest priority applies to the cost.
|
Contractor involved in design
phase, which result in early budget estimation and avoiding overpricing with
redesigning.
|
|
Risk
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Risk is individually managed by client as in Design
Bid Build or transferred to the total contractor to the greatest extend in
Design Build
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Risk is collectively managed and appropriately
shared within the integrated team
|
|
Compensation/reward
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Each of the participant pursue
their benefits Individually by making minimum effort for maximum return.
|
Team success tied to project
success.
|
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Agreements
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Traditional contracts (as example GC92) results in
encouraging one-sided effort, allocating and transferring risk.
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Shared reward/risk contract encourages multi-sided
open sharing and collaboration with risk sharing.
|
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Involvement in the project
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Depends on the method; In total
contract-the client involvement is minimum. On the other hand in individual
contract the client plays active role, however the contractor arrives in
project much later.
|
All participant involved in early
phases of the project.
|
|
Teams
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Teams are fragmented, assembled on minimum necessary
basis, they are strongly hierarchical.
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An integrated team entity is composed from key
project participants, they are assembled early in the process; there are
open, collaborative and trusting relationships.
|
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Process
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The project process requires
knowledge gathered just as needed;
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The process includes early
contributions of knowledge and expertise and information openly shared
between participants.
|
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Others
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Usually participants stick to the paper based
communication and project documentation.
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Integrated teams often
coordinate the project digitally, using Building Information Modeling (3, 4
and 5 dimensional).
|
From the table we
can realize that integrated project delivery brings advantages not only to the
clients but to the all project participants. However the shared risks and
rewards make the choice of participants very important. That is why it can take
time at the beginning of the project to gather the competent team.
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