355 Copyright © 2017, IGI Global. Copying or distributing in print or electronic forms without written permission of IGI Global is prohibited. Chapter 12 DOI: 10.4018/978-1-5225-0675-1.ch012 ABSTRACT Although widely employed within the Architectural Heritage conservation process, Information and Communications Technology (ICT) techniques still present many serious issues for the discipline. Current research highlights a possible methodological approach to devise an ICT instrument that could sup- port activities for Cultural Heritage conservation, while maintaining full respect for the specifcs of the discipline. Reviewing current ICT and Architecture Engineering and Construction (AEC) applications, it is possible to note that the proposed approach is at the moment reversed: modelling does not arise as the projection of a future object, but rather from the knowledge needed to represent an existing site as accurately as possible. The proposed goal, refecting the operative methodology of the conservation process, seems to ofer a greater range of representativeness and to resolve, at least, some of the critical topics that have arisen from the application of ICT to Cultural Heritage to date. INTRODUCTION The importance within the conservation process of recording building information is required above all by the inherent features of cultural heritage, namely: cultural value, uniqueness, unrepeatability, and non-reproducibility. These features refer entirely to extant historical buildings, determined historically in close relationship with the physical context (Benjamin 1936, p.8). Issues arise from the specific characteristic of historical architecture that may not be considered a single creation, but rather an open work resulting from complex transformations built up over time through an involved interaction between Drawing, Information, and Design: Tools and Perspective for Conservation Donatella Fiorani Sapienza University of Rome, Italy Marta Acierno Sapienza University of Rome, Italy