Computers, peripheral devices for computers; Computer programs for supporting engineering processes, namely for collecting and storing project information, technical specifications, equipment data, devices and structural data to generate bills of materials and wiring lists, to draft and edit diagrams and to communicate with suppliers and customers, Program systems comprising software for supporting engineering processes, namely for collecting and storing project information, technical specifications, equipment data, devices and structural data to generate bills of materials and wiring lists, to draft and edit diagrams and to communicate with suppliers and customers, Pre-recorded machine readable data carriers containing software for supporting engineering processes, namely for collecting and storing project information, technical specifications, equipment data, devices and structural data to generate bills of materials and wiring lists, to draft and edit diagrams and to communicate with suppliers and customers, and related handbooks and/or related printed self-learning lessons sold as a unit with the aforementioned goods; Machine readable data collections, namely standard symbols used in connection with engineering, including international and European standard engineering symbols, recorded on computer media or downloaded from remote computer servers