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Green Public Procurement (GPP) is defined as a process of contracting products, services, and works with the least possible damage to the environment during their life cycle. In order to improve the knowledge about GPP, a study of the use of environmental tendering criteria in the Spanish public construction sector has been performed. The results of this study show that the use of environmental criteria in Spanish public sector construction procurement is low in comparison to a certain group of countries, known as “Green 7”, in the European Union. Environmental criteria is the fourth criterion in importance, but its weight in the global of the process is much lower than other criteria such as price, memory of the construction process and the delivery time. National administrations use environmental criteria more frequently because they have more resources and staff training about environmental issues. Environmental criteria are more used in the tendering of civil projects and works whose budget exceeds ten million euro due to the environmental impact of these kind and/or size of projects.

This paper studies the influence of the type of method, intuitive or logical, used for idea-generation on the final creative results. An experiment was developed in which 16 design teams were asked to solve a design problem using different creative methodologies. Seven of the teams used the SCAMPER intuitive method and another seven teams used the TRIZ logical method. Two groups acted as control. One of these control groups used brainstorming, and other group used no method. The creativity of the results, considered as the combination of novelty and utility, was evaluated using the Analytical Hierarchy Process. Results show the differences in these parameters in the different methods used in the experiment.

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