ZEMCH 2015 - International Conference Proceedings | Page 327

3.1.4 OUTSTANDING and PLATINUM Buildings
All the buildings in this group utilise the largest number of IBTs and also score the highest on
both the rating systems, thus following the trend that as the number of IBTs used in the building
increases so does its BREEAM/LEED score.
3.2 Bivariate Correlation Analysis
To inspect the correlation between the two variables, scatterplots (Figure 4 & 5) were requested
using the SPSS analytics software. The scatterplots helped assess whether the two variables being
investigated are closely related to one another and how closely the data conforms to a trend line.
The percentage BREEAM and LEED scores are the dependant variables on the x-axis while the
number of IBTs are the independent variables on the y-axis. Each of the plotted point denotes a
single case study.

Figure 4: Bivariate Correlation between the Number of Intelligent Building Technologies and BREEAM
Scores

Figure 5: Bivariate Correlation between the Number of Intelligent Building Technologies and LEED
Scores

Building intelligence and sustainability using leed and breeam in the UK and Europe

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