Like any LAN/WAN application, LIMS provide a security scheme through a user login name & password. Each user is limited to a certain series of tables, fields, forms, reports and function with various levels of security. CLEQM, as a multi-department lab, has access rights levels restricted by department as well. Another aspect of security is data integrity. CLEQM uses a PE-Nelson SQL-LIMS, which is based on ORACLE relational database, needless to say that the integrity is assured.