Software for monitoring, recording and reporting; software for use in relation to the control of legionella bacteria in water systems; software for monitoring, recording and reporting for use in relation to the control of legionella bacteria in water systems; software for monitoring, recording and reporting temperatures; software for monitoring, recording and reporting temperatures that promote legionella; software for use in relation to complying with legal duties in relation to legionella; software for use in relation to assessing sources of risk of legionella; software for use in relation to preparing schemes to prevent legionella; software for use in relation to preparing schemes to control the risk of legionella; software for use in relation to implanting, managing and monitoring precautions in relation to legionella; software for use in relation to keeping recording of precautions in relation to legionella; software for use in relation to controlling the risk of legionella bacteria; software for use in relation to the control of waterborne bacteria such as E-coli & Pseudomonas in water systems; software for monitoring, recording and reporting for use in relation to the control of waterborne bacteria such as E-coli & Pseudomonas in water systems; software for monitoring, recording and reporting temperatures that promote waterborne bacteria such as E-coli & Pseudomonas; software for use in relation to complying with legal duties in relation to waterborne bacteria such as E-coli & Pseudomonas; software for use in relation to assessing sources of risk of waterborne bacteria such as E-coli & Pseudomonas; software for use in relation to preparing schemes to prevent waterborne bacteria such as E-coli & Pseudomonas; software for use in relation to preparing schemes to control the risk of waterborne bacteria such as E-coli & Pseudomonas; software for use in relation to implanting, managing and monitoring precautions in relation to legionella; software for use in relation to keeping recording of precautions in relation to waterborne bacteria such as E-coli & Pseudomonas; software for use in relation to controlling the risk of waterborne bacteria such as E-coli & Pseudomonas.;