Abstract
One of the critical factors of project success is the interface management. Past project interface management mainly relies on knowledge and experience of the project managers. The existing studies of project interface management also mainly focused on the definition and the classification of project interfaces. There is no workable and flexible framework for construction interface problem identification and solutions. This study conducted an analogic study of contradiction matrix at Theory of Inventive Problem Solving (TRIZ) to develop such a framework. This research collected around six hundred interface management cases from civil works and building projects. For comparison, this research defined an experimental group (TRIZ case) and a control group (experience-oriented solution case) based on the concept of clinical experiments in medical science to evaluate and improve the rationality of the matrix. Subsequently, based upon the theory of information retrieval (IR), this research conducted statistical evaluation and TRIZ features remedies to develop generalized construction interface problem identification and solutions. For solving project management interface problems, the TRIZ-analogic construction interface problem identification and solutions framework provides a systematic approach to develop more robust solutions for interface problems in construction engineering rather than just simply relying on intuitive experience.
Highlights
Is study refers to the contradiction matrix established in the theory of inventive problem solving (TRIZ) [10], which properly solves the above-mentioned problems. e engineering features of the original contradiction matrix are first converted into interface-related features through model transformation and validation, which creates a systematic framework to identify interface problems and provide generalized reference solutions for the practical implementation on the construction management interface problems. e remainder of this study is organized in the following
When calculating the precision and recall, it is required to calculate the matched number between the experimental and the control group for an interface problem. e contradiction matrix is composed of forty principles and thirty-nine features. eir relationships are many to many. e principles can be regarded as the function of features. e similarities among the principles are measured based upon the distances between features behind the principles
In order to demonstrate the comprehensiveness of the proposed framework, this study carried out the operations on three more cases at different lifecycle stages. e test results indicated that the practical solutions can be acquired under the guide of TRIZ-analogic construction interface problem identification and solutions framework. e practicability and the comprehensiveness of the framework developed by this research are further verified
Summary
During the lifecycle of construction projects, the interface conflicts always exist amongst things and people. Some methods and information technology approaches were proposed for solving the interface problems, few researches are conducted regarding the systematic framework of the conflict identification and solutions for the generalized construction management interfaces. In view of the diversity of interface problems and the unavailability of generalized interface problem identification and solution framework, this study refers to the contradiction matrix in TRIZ theory and transforms its original inventive thinking on “physical object interface” into the discussion of identification and thinking of solutions for the “human (organization) interface” based upon the concept of organizational behavior. Based upon the theory of information retrieval, this research conducts data collection, discussion, statistical evaluation, and remedy to develop a novel and generalized construction interface problem identification and solutions framework. One main function of the theory of organizational management is to study and resolve the conflict and negotiation amongst the individuals, groups, and organizations. is study follows the theory of organizational management to do the first transformation from the original TRIZ contradiction matrix into the construction interface-related matrix
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