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Library's collection Library's IT development CancelLean design, the idea is to eliminate waste such as rework and waiting to
increase design process performance. The aim of this thesis is to recognize
intensity of waiting activities, design reworks and factor affecting. Furthermore,
will recognize effect of waiting activities and design rework to duration of design
process.
The survey results, collected through questionnaires which is distributed to
designers, have shown that waiting for client's approvals, client’s information,
instructions from principle, other designer’s information and authority approvals
are waiting activities which frequently occur and have effect to duration of design
process. Design reworks which frequently occur are redesign because of
economical factor, inconsistent information, lack of coordination between design
disciplines, uncertainty among design documents and whole life cycle cost issues.
Design reworks which have effect to duration of design process are redesign
because of economical factor, irrelevant design, life cycle cost issues, uncertainty
among design documents and error in selection of material. Client requesting
design change, inadequate time frame, client slow in making decisions, client lack
of construction knowledge, inaccurate information from client are factors
affecting waiting activities and design reworks which are frequently occurred.