An apparatus comprising: a static model acquiring unit configured to acquire a static model indicating a steady state of a plant; a piping and instrumentation diagram data acquiring unit configured to acquire piping and instrumentation diagram data of the plant; a matching unit configured to match a device included in the static model and a device included in the piping and instrumentation diagram data to each other to identify a device-to-device correspondence relation; and a dynamic model generating unit configured to generate a dynamic model that is a model calculating a dynamic state of the plant based on a matching result by the matching unit, and a dynamic simulator configured to perform a dynamic simulation by using the dynamic model, characterized in that the matching unit includes: a model converting unit configured to convert the static model into a first model based on the static model and convert the piping and instrumentation diagram data into a second model based on the piping and instrumentation diagram data, the first and second models having a common representation format; and a matching processing unit configured to match a device included in the first model and a device included in the second model to each other; in that the dynamic model generating unit includes: an integrated model generating unit configured to generate an integrated model by integrating the first model and the second model; and a converting unit configured to convert the integrated model into the dynamic model; and in that the matching unit is configured to identify a device-to-device correspondence relation based on a result of comparing device information added to devices included in the static model with device information added to devices included in the piping and instrumentation diagram data or a result of comparing a connection relation between devices in the static model with a connection relation between devices in the piping and instrumentation diagram data. a static model acquiring unit configured to acquire a static model indicating a steady state of a plant; a piping and instrumentation diagram data acquiring unit configured to acquire piping and instrumentation diagram data of the plant; a matching unit configured to match a device included in the static model and a device included in the piping and instrumentation diagram data to each other to identify a device-to-device correspondence relation; and a dynamic model generating unit configured to generate a dynamic model that is a model calculating a dynamic state of the plant based on a matching result by the matching unit, and a dynamic simulator configured to perform a dynamic simulation by using the dynamic model, characterized in that the matching unit includes: a model converting unit configured to convert the static model into a first model based on the static model and convert the piping and instrumentation diagram data into a second model based on the piping and instrumentation diagram data, the first and second models having a common representation format; and a matching processing unit configured to match a device included in the first model and a device included in the second model to each other; a model converting unit configured to convert the static model into a first model based on the static model and convert the piping and instrumentation diagram data into a second model based on the piping and instrumentation diagram data, the first and second models having a common representation format; and a matching processing unit configured to match a device included in the first model and a device included in the second model to each other; in that the dynamic model generating unit includes: an integrated model generating unit configured to generate an integrated model by integrating the first model and the second model; and a converting unit configured to convert the integrated model into the dynamic model; and in that the matching unit is configured to identify a device-to-device correspondence relation based on a result of comparing device information added to devices included in the static model with device information added to devices included in the piping and instrumentation diagram data or a result of comparing a connection relation between devices in the static model with a connection relation between devices in the piping and instrumentation diagram data. an integrated model generating unit configured to generate an integrated model by integrating the first model and the second model; and a converting unit configured to convert the integrated model into the dynamic model;