ZEMCH 2015 - International Conference Proceedings | Page 547

gardless of the profile of the residents. The most common types are the small flat buildings and the semi-detached or detached houses. Figure 1: Aerial view housing complex Source: Google Maps 2014 Figure 2: Dull aspect of the complex Source: Jornal União 2011 Outside the big cities, where the cost of land is very high, the most common type is one-story houses with two bedrooms, living room, kitchen and bathroom (not including walls nor laundry) of 36,00m² floor area with accessibility for wheelchair users in all rooms, and possibility of future extension. A major feature is the standard designs, mostly built with post and beam structural system, masonry and clay tile roofing. Some contractors still choose the system of concrete walls cast on the construction site. Only recently that the wood frame system has been certificated, several hundred units have been built. The PMCMV plans to build only a few thousand units in the next phase. Thus, the expected improvement in the customization is limited, but may be achievable thanks to the productivity gains through mass production. Obviously, due to the continuous shrinking of living area in low-cost houses currently, one of the needs is to get more space, larger area or more rooms. The purpose of this paper is to present and discuss the experience of developing an isolated social housing design for mass production, which meets the PMCMV requirements, and, on the other hand, incorporates the ZEMCH principles such as quality, waste reduction, energy efficiency and the possibility of customization. The research problem was to integrate the use of target-costing and collaborative strategies to add more value to social housing funded by the PMCMV. As the project is on course, the focus of the work is its development, its methodology, to show the solutions and the difficulties found in an academic environment within an integrated and collaborative process. 2. Theoretical Foundation 2.1 Collaborative design process The methodological strategy adopted in this research is the Design Science Research, which involves a sequence of design steps, construction and evaluation of objects, ending with a critical analysis of the process and a theory to consolidate the scientific foundation on the subject (Vaishnavi and Kuechler Jr 2008). This paper describes a series of experiments conducted in an academic environment involving design exercises and a series of procedures to check the conditions to establish and prioritize requirements, among which one can mention; the completion A design process proposal to brazilian Government’s social housing program 545