classDiagram
    class NXapm {
        <<application>>
        +NXentry[1..*]
    }
    class NXentry {
        +definition: NX_CHAR
        +run_number: NX_UINT
        +experiment_alias: NX_CHAR
        +experiment_description: NX_CHAR
        +start_time: NX_DATE_TIME
        +end_time: NX_DATE_TIME
        +elapsed_time: NX_FLOAT
        +operation_mode: NX_CHAR
        +userID: NXuser
        +sample: NXsample
        +specimen: NXsample
        +consistent_rotations: NXparameters
        +NAMED_reference_frame: NXcoordinate_system
        +measurement: NXapm_measurement
        +simulation: NXapm_simulation
        +atom_probeID: NXroi_process
        +profiling: NXcs_profiling
    }
    class NXapm_measurement {
        +status: NX_CHAR
        +quality: NX_CHAR
        +instrument: NXinstrument_apm
        +eventID: NXevent_data_apm
    }
    class NXinstrument_apm {
        +type: NX_CHAR
        +location: NX_CHAR
        +flight_path: NX_FLOAT
        +reflectron: NXcomponent
        +local_electrode: NXlens_em
        +ion_detector: NXdetector
        +pulser: NXcomponent
        +stage: NXmanipulator
        +analysis_chamber: NXcomponent
        +buffer_chamber: NXcomponent
        +load_lock_chamber: NXcomponent
        +getter_pump: NXpump
        +roughening_pump: NXpump
        +turbomolecular_pump: NXpump
    }
    class NXroi_process {
        +initial_specimen: NXimage
        +final_specimen: NXimage
        +raw_data: NXprocess
        +hit_finding: NXprocess
        +hit_spatial_filtering: NXprocess
        +voltage_and_bowl: NXprocess
        +mass_to_charge_conversion: NXprocess
        +reconstruction: NXapm_reconstruction
        +ranging: NXapm_ranging
    }
    class NXprocess {
        +program: NX_CHAR
        +sequence_index: NX_POSINT
        +version: NX_CHAR
        +date: NX_DATE_TIME
        +(NXnote)
        +(NXparameters)
        +(NXdata)
    }
    class NXimage {
        +image_2d: NXdata
    }
    class NXapm_simulation {
        <<group>>
    }
    class NXcs_profiling {
        +programID: NXprogram
        +environment: NXcollection
    }
    class NXcs_profiling_event {
        +start_time: NX_DATE_TIME
        +end_time: NX_DATE_TIME
        +description: NX_CHAR
        +elapsed_time: NX_NUMBER
        +max_processes: NX_UINT
        +max_threads: NX_UINT
        +max_gpus: NX_UINT
        +max_virtual_memory_snapshot: NX_NUMBER[n_processes]
        +max_resident_memory_snapshot: NX_NUMBER[n_processes]
    }
    NXapm --> NXentry
    NXentry --> NXapm_measurement
    NXentry --> NXapm_simulation
    NXentry --> NXroi_process
    NXentry --> NXcs_profiling
    NXapm_measurement --> NXinstrument_apm
    NXapm_measurement --> NXevent_data_apm
    NXroi_process --> NXimage : initial_specimen
    NXroi_process --> NXimage : final_specimen
    NXroi_process --> NXprocess : raw_data
    NXroi_process --> NXprocess : hit_finding
    NXroi_process --> NXprocess : hit_spatial_filtering
    NXroi_process --> NXprocess : voltage_and_bowl
    NXroi_process --> NXprocess : mass_to_charge_conversion
    NXroi_process --> NXapm_reconstruction : reconstruction
    NXroi_process --> NXapm_ranging : ranging
    NXcs_profiling --> NXcs_profiling_event
    NXprocess --> NXnote
    NXprocess --> NXparameters
    NXprocess --> NXdata
    NXimage --> NXdata : image_2d

classDiagram
    class NXprocess {
        +program: NX_CHAR
        +sequence_index: NX_POSINT
        +version: NX_CHAR
        +date: NX_DATE_TIME
        +(NXnote)
        +(NXparameters)
        +(NXdata)
    }
    class NXnote {
    }
    class NXparameters {
    }
    class NXdata {
    }
    NXprocess --> NXnote
    NXprocess --> NXparameters
    NXprocess --> NXdata

classDiagram
    class NXcs_profiling_event {
        +start_time: NX_DATE_TIME
        +end_time: NX_DATE_TIME
        +description: NX_CHAR
        +elapsed_time: NX_NUMBER
        +max_processes: NX_UINT
        +max_threads: NX_UINT
        +max_gpus: NX_UINT
        +max_virtual_memory_snapshot: NX_NUMBER[n_processes]
        +max_resident_memory_snapshot: NX_NUMBER[n_processes]
    }

classDiagram
    class NXlens_em {
        +pole_type: NX_CHAR
        +number_of_poles: NX_UINT
    }

classDiagram
    class NXfabrication {
        +date: NX_DATE_TIME
        +capability: NX_CHAR
    }

classDiagram
    class NXentry {
        +entry_identifier: NX_CHAR
        +identifier_entry: NX_CHAR
    }

classDiagram
    class NXcomponent {
        +identifierNAME: NX_CHAR
    }

classDiagram
    class NXcg_primitive {
    }
    class NXcg_roi {
    }

classDiagram
    class NXactuator {
    }
    class NXcoordinate_system {
    }
    class NXdata {
    }
    class NXhistory {
    }
    class NXresolution {
    }
    class NXroot {
    }

classDiagram
    class NXcg_face_list_data_structure {
    }
    class NXcg_half_edge_data_structure {
    }
    class NXcg_hexahedron {
    }
    class NXcg_parallelogram {
    }
    class NXcg_polygon {
    }
    class NXcg_polyhedron {
    }
    class NXcg_polyline {
    }
    class NXcg_tetrahedron {
    }
    class NXcg_triangle {
    }