Integration of Lean Con. and Building Information Modelling
important to understand the root causes. It is achieved by making the "last planner" plan his work
together with other participants as early as possible and share his expertise in his particular field
("pull" planning). Tasks are made sound by executing constraints analyses, and tasks that are sound
will be passed to weekly work planning. From the authors experience, there are companies in Estonia
who do weekly work plans, but not as systematically as LPS requires, but rather based on demagogy.
They also do not measure their performance, while in LPS it is done by measuring PPC, and this
enables real time process tracking and learning.
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LPS is driven by next principles (the foundation for LPS):
1. Plan in greater detail as you get closer to doing the work
2. Produce plans collaboratively with those who will do the work
3