Seite - 58 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

ulated,dirtierand lessgreenwith less space to liveandexploit (e.g.,plantations,vertical farming). The rooftop can also be equippedwith renewable and green energy sources such as wind turbines, solar panels and water tanks for electricity and to collect rain whichsignificantlyreducescostsanddecreases the impactontheenvironment.Rooftops can be exploited in relation to their geographical location andweather conditions (e.g., solarpanels for sunnyplaces, farming for rainyplaceswitha suitableclimate). Beside being a smart entity that can manage itself automatically and intelligent- lywhile taking care of its residents (e.g., smart services, comfort and assistance), such buildings need to be developedwith an ecological perspective. This need to be ecolog- ical occurs given the different problems that theworld suffers during the 21st century (e.g., pollution, high electricity andwater consumption, lack of space) in order to limit significant lossesand improve lifequality.Since thenewtechnologiesallowus tocreate smart solutions (e.g., smart devices, applications, automated systems),wecanmake the mostof them,especially todeveloprenewableenergysolutions (e.g., solarenergy).This kindof smart buildinghave several advantages such as: (i)Environmental impact:Re- ducewastageofwaterandelectricity,conserveandimprovebiodiversityandecosystem- s, recycling andwaste reduction, renewable energy use, (ii)Economic impact:Reduce energy use and cost, improve productivity by creating markets for green product and services, proximity, (iii)Social improvement: Improveoccupanthealthandcomfort. 2.2. SmartBuildingSystemArchitecture A smart building is a combination of its inside, rooftop and garage and it is equipped with hardwares (e.g., sensors, appliances, interfaces) and softwares for system control andmanagement. Furthermore, it hosts inhabitants, and then need to offer them smart and adequate services (e.g., building access, automatic lighting), ease their daily use of componentsandsharedspaces(e.g.,elevator,utilityroom)andtakeaccountof theirpref- erences and needs.Also, the intended system is augmentedwithmodules (i.e., Energy saving, Safety&Security,Comfort&Assistance) in order to bettermanage their relat- ed appliances and entities.Safety&Security is for the safenesswithin the building and the exterior,Energy saving concerns the building self-management in terms of energy savingand theComfort&Assistance is for providing smart services, automated scenar- ios andautomatic actions and to improve thequality of life to satisfy inhabitants needs. Thesemodules are important for an engineering approach ofmodular design and they may interveneondifferent level andondifferent appliances. Weaim toproposeanddevelopamodule-drivendesignmethodologyand language for smart buildings in order to ease the composition and the generation of the desired system.As instance, whenwe activate amodulewithin the smart building system,we willonlyhave thechoicebetween the relatedappliancesandentities for thismoduleand thengenerateonly the required templates, declarationsandconditions. Ingeneral,when amodule isactivated, thecorrespondingconditionsandbehavior functionsof therelated appliancesaregeneratedwithin thesystemcomposition.Onthecontrary,whenamodule is deactivated, these features (i.e., conditions, functions) are deleted from the system compositionand fromthecorrespondingappliances templates related to thismodule. The use cases diagram presented in Figure 1 illustrates functionalities of the pro- posed smart building system. Within the building, a user can initiate action(s) on the available deviceswithin the building (e.g., elevator). An actuatormay also initiate ac- tion(s) automatically after analysing the collected information by the sensors. An ad- ministrator is in charge of setting and updating the building information (e.g., Device A.LyazidiandS.Mouline /BuiS:AMethodology forSmartBuildingModeling58