||Modern regulations control the performance of our built environment rather than themethods and materials of construction. The designer has freedom to fulfil specifiedobjectives any way he chooses, but he must show that he is fulfilling the regulatoryintention, and fulfilling it well enough. How does he convince the building surveyor thathis building will provide an acceptable level of compliance? Where does he find theinformation to justify his choice of solutions to the regulatory problems? And wheredoes the regulator find the information needed to determine whether or not a proposedsolution is acceptable?The answers lie in the sea of regulatory information and research that is the source ofall building reedation. Required levels of compliance are implicit in ixaditional,prescriptive regulations. Background research data, legal rulings, records of committeedecisions, articles, advisory notes, commentaries, accreditation reports, cornonpractice - all give an indication of the level of compliance that society and theregulators are willing to accept and help the designer and the regulator establish criteriaof acceptance. This vast array of knowledge helps the regulator determine theintentions of existing regulations and write realistic rules for the performance ofbuildings.But where does the search fgr knowledge begin? Information technology can structurethe search and help find a way through the jungle of data, macheteing obstructions tothe introduction of innovative solutions. A structured, selective search can give theregulator access to all the data he needs to support his arguments, allowing the fullrealisation of the benefits of performance regulation. Linked to a powerful expertsystem that assists and checks his passage through the regulations, CSBO is creatingan IT system to facilitate these benefits.