ZEMCH 2015 - International Conference Proceedings | Page 551

Table 3: Tools used in the demand identification and capture the user perceptions
Post Occupancy Evaluation (POE)

POE questionnaire identifies the profile of families living in social housing case
study, recognizing factors such as family size, age of the residents, profession,
education, use of transportation facilities and level of satisfaction with the house.

Research instrument in the form of
a card game (Kowaltowski; Granja,
2011)

27 items analysis (playing cards) divided into 5 groups. The application is
performed by the classification in order of importance of the decks of each group,
in a first round. The most important cards are selected, and again ranked in order
of importance in a second round. The result is validated by statistical analysis
with 95.5% confidence interval, and an error margin of 10%.

Source: Yokota 2015
The users classified the cards submitted during the interviews according to their relevance. From
POE was obtained as a result the Index of General Significance (IGS) which, objectively, rank the
items shown on the cards, accordin g to the priorities identified by the users (Aragão 2014; Yokota
2015).
The demands and perceptions of value of the end-users identified were transformed into design
attributes, recognized as opportunities for significant design improvements. The opportunities
were cross-checked in a matrix, each one being weighed by the result of IGS. The intervention
opportunities were organized as shown in Table 4.
Table 4: Hierarchy of design requirements from POE in Low-Income Housing (LIH)
DESIGN REQUIREMENTS

Relative IGS %

Closing the Housing unit with wall

14,19

Expansion project of housing unit

11,02

Housing unit independent (not detached)

9,84

Laundry area covered

6,72

Plot size appropriate for new spaces

6,64

Additional room (e.g. 3rd bedroom)

6,31

Minimizing the circulation area within the unit

5,68

Capacity / efficiency of solar heating systems

5,60

Additional room (area for little shop/office)

5,23

Cross ventilation in rooms

4,85

Complementary building (garage)

4,61

Blocking the visual side openings (between neighbouring units)

4,45

Technical solutions for future expansions

3,57

Complementary construction (balcony)

3,16

Facade diversification

3,02

Piping system concentrated in the same wall

2,75

Appropriate plot width
Total

2,37
100,00

Source: Adapted from Aragão 2014

A design process proposal to brazilian Government’s social housing program

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