Method for implementing BIM and target costing in social housing

Development processes of Social Interest Housing (HIS) Projects are recognized by the great standardization and economies of scale. However, there is in most of these projects the reduced budget and delivery characteristics of low quality products, functionality and little value delivered to the user. Several authors have developed and proposed theoretical methods to solve this problem. However, proposals are disassociated or are difficult to implement in practice. The objective of this research is to create artifacts for the target costing approach aimed at reducing costs and meeting the desired value customer that integrates theoretical models already proposed and has its appropriation facilitated in practice by means of technological resources with Building Information Modelling (BIM). The research method adopted is the constructive research is to find a problem in practice, examine the research potential in the target sector, obtain general and deep knowledge of the issues addressed (HIS, BIM and target costing), create a solution innovative proposing an artifact, the artifact implement and evaluate, reflect on the applicability by the target sector, to identify and analyze the theoretical contributions of the solution from the existing theoretical framework. The artifacts created consist of a theoretical method and a corresponding instantiation. The theoretical approach combines existing theoretical models by means of a method for management of value, represented in the process map. The corresponding instantiation that supports the application of the method consists of an initial project basis (linked set of housing information models and typology of the building). The project database is developed from design templates (including families of components and quantitative tables). The project basis is associated with value management spreadsheets. Adding value addressed by the proposed method is automated by the corresponding instantiation resulting in the design process mediated by BIM. Workshops were conducted to evaluate the method and corresponding instance BIM applied to CHIS solutions of the Program Minha Casa Minha Vida (PMCMV) for families with income of up to 3 minimum wages. The first workshop was conducted exploratory focus groups formed by undergraduates, and aimed to refine and improve the artifacts. Later one second workshop was conducted with focus groups Confirmatory (graduate students and industry professionals) and aimed to determine the effectiveness of artifacts and validate it. The workshops demonstrated the feasibility of applying the theoretical method and corresponding device with positive interference potential in the HIS project solution assisting in decision making. The workshops also pointed the artifact demands by adopting naming standards and use of the method guides. The theoretical contribution of the method is the integration of existing methods, as well as clarification of requirements associated with the levels of development of BIM components for implementation of the process and the automated mechanism for evaluating the value associated with the BIM model. The practice method contribution and corresponding artifact is facilitating the implementation of target costing in HIS by different agents.