## 10 Further Developments  
Further developments of this research will include the use of distributed ledger technology; in particular, the implementation of Smart Contracts based on blockchain technology can be proposed. Thanks to its main features, the use of a distributed ledger can improve information management, and the execution of a Smart Contract can guarantee the immutable and reliable recording of all of the information. The potential integration of a blockchain and IMM methodology can boost the information production, validation, monitoring, and management, offering a transparent, permanent, and shared archiving of the information on a distributed ledger.  
For this research case, the proposal of this innovative system permits the proper traceability of all the information related to the materials and the waste cycles pursued in the process. Consequently, this application enables better communication and collaboration among the participants acting in each phase of the construction process, from the planning to the disassembly of the building. The use of a distributed ledger and Smart Contracts in the management of the information related to waste production and management enables the recording and tracking of all the of the relevant data, assuring their access at any time in a reliable way. This means that an IMM based on a blockchain can be considered as a trusty base for the decision-making process, allowing the proper planning and management of construction waste and the environmental impact of the entire process. Based on real and reliable information, more sustainable decision and planning can be conducted in the entire construction industry.  
As stated before, despite the fact that some environmental sustainability protocols are mandatory (i.e. CAM in Italy) and that others often provide additional scores in MEAT approaches (e.g. LEED--Leadership in Energy and Environmental Design, ITACA, etc.), an objective and reliable assessment of their compliance is still struggling to be obtained. This is mainly due to the intrinsic complexity and the lack of adequate assessing digital tools. Thus, another development of the outlined IMM approach will concern the introduction of automated sustainability criteria evaluation methods through the integrated simulation of Information Models and automated score attribution systems. This could provide the dual objective of increasing GPP adoption and enhancing digitalization in the tender evaluation processes as required by European Directives. The achievable goals consist of the shortening of the tendering phase, cost reduction as well as avoidance of controversies and corruption. In addition, this will ensure the objective and trustworthy evaluation of sustainability criteria compliance based on the actual use of the building rather than on rough saving assessments. On the contrary, bids will be evaluated through well-defined, clear, and machine-readable criteria in order to digitalize and automate the evaluation process.  
Conceptualization, L.P. and E.S.; methodology, L.P. and M.L.; software, M.L.; validation, L.P., L.C.T., and G.M.D.G.; formal analysis, M.L.; investigation, L.P.; resources, G.P.; data curation, M.L.; writing--original draft preparation, L.P. and M.L.; writing--review and editing, L.C.T.; visualization, S.M.; supervision, L.C.T.; project administration, G.M.D.G.; funding acquisition, G.M.D.G. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
**Institutional Review Board Statement:** Ethical review and approval were waived for this study because they were not applicable.  
**Informed Consent Statement:** Informed consent was obtained from all subjects involved in the study.