ATM offers complete solutions in managing facility and asset accesses and also provides a scaleable work flow management for organization and facility owners in the wired or wireless network. It consists of electronic locks, keys, server system, client PCs and various network media. Electronic locks are installed at important premises, such as roof-top areas for water tank, pump room, lift control room, condominium and hotel facilities, military weapon storage room, prison cells, airport ground handling sites and etc. Vendors or servicing agents with valid electronic key can gain access to such facilities. The access is governed by schedule validation scheme, location validation scheme and vendor validation scheme. Transactions are logged in both key and lock, which can be transmitted to web server via pc, notebook, mobile devices such as PDA, cell phone etc. And vice versa, mobile devices are able to retrieve data, control and manage access via GPRS network. The ultimate aim is to bring quality of life to the residents in high rise buildings as well as an effective workaround to the services peoples, the managing agents and corporate customers.