A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000\xb0 C. The modular stair unit includes a body, housing adjoined therewith, and light source within the housing. The combination of non-intrusiveness, WSDL-blindness, and external enforcement techniques truly provides a scalable and reliable deployment of Web Services at the enterprise level.