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Charrette
Collaborative brainstorming session; team members are encouraged to address problems beyond their field of expertise.
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Last Planner System is...
project planning that is commitment based and integrates should-can-will-did planning (pull planning, make-ready, look-ahead, constraint, and PPC analysis).
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LPS is comprised of 2 main components:
LWS & Production Control
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Work Breakdown Structure looks at
- Independent activities to optimize them as opposed to LWS that optimizes the whole.
- it looks at the pieces to
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LWS vs. Constructability
LWS = influence on design Constructability = reaction to design
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First run studies
- Trial execution of the process; pilot or a dry run; cross-functional team.
- it follows Shewart PDCA cycle.
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Make-ready planning - can (removing constraints, make it ready) - which questions to ask?
- is the network of commitments active?
- are promises to complete the work in the right sequence?
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Phase scheduling - should (which questions to ask)
- are we confident we can deliver the milestones?
- have we designed a network of commitments?
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Milestones (master schedule)
interim goals, feasibility (can we deliver the project within the set limits?)
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Benefits of LPS
Enhanced workflow reliability allows for rapid learning improves coordination between work executors waste removal through innovation
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PPC
- PPC = completed weekly assignments ÷ total weekly promised assignments
- Metric to measure the reliability of the production planning system; it enables us to make adjustments for continuous improvement
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Who is the Last Planner?
Person or group that directs workers by assigning them their tasks.
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Products of LWS: Operations level
- rough cut operations
- detailed operations design (sequencing, material availability, video taping)
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Products of LWS on process level:
- master schedule
- phase
- make-ready
- weekly work plans
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LWS during the construction phase can be divided in 2 levels:
process = flow of material information operation = work performed
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Lean Workstructuring is
...developing project's design while aligning engineering design, supply chain, resource allocation, and assembly.
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