diff --git a/src/Common/CommonStandard/DataObj/RawDataMetadata.cs b/src/Common/CommonStandard/DataObj/RawDataMetadata.cs
new file mode 100644
index 000000000..503e11687
--- /dev/null
+++ b/src/Common/CommonStandard/DataObj/RawDataMetadata.cs
@@ -0,0 +1,284 @@
+using System;
+using System.Collections.Generic;
+
+namespace CompMs.Common.DataObj {
+    public enum RawDataVendor {
+        Unknown,
+        Agilent,
+        Bruker,
+        Sciex,
+        Shimadzu,
+        ThermoFisher,
+        Waters,
+        OpenFormat,
+    }
+
+    public enum MetadataSource {
+        Unknown,
+        VendorHeader,
+        SpectrumHeader,
+        SpectrumStatistics,
+        FileName,
+        Repository,
+        User,
+        Derived,
+    }
+
+    public enum RawPolarityMode {
+        Unknown,
+        Positive,
+        Negative,
+        PolaritySwitching,
+        MixedFunctions,
+    }
+
+    public enum RawAcquisitionMethod {
+        Unknown,
+        FullScan,
+        DDA,
+        DIA,
+        AIF,
+        SIM,
+        SRM,
+        MRM,
+        PRM,
+    }
+
+    public enum RawSeparationTechnique {
+        Unknown,
+        DirectInfusion,
+        LiquidChromatography,
+        GasChromatography,
+        CapillaryElectrophoresis,
+    }
+
+    public enum RawSampleType {
+        Unknown,
+        Sample,
+        Blank,
+        QualityControl,
+        Standard,
+    }
+
+    public sealed class MetadataValue<T> {
+        public MetadataValue() {
+            Value = default(T);
+            Source = MetadataSource.Unknown;
+            Evidence = string.Empty;
+        }
+
+        public MetadataValue(T value, MetadataSource source, double confidence, string evidence = "") {
+            Value = value;
+            Source = source;
+            Confidence = NormalizeConfidence(confidence);
+            Evidence = evidence ?? string.Empty;
+        }
+
+        public T Value { get; set; }
+        public MetadataSource Source { get; set; }
+        public double Confidence { get; set; }
+        public string Evidence { get; set; }
+
+        private static double NormalizeConfidence(double confidence) {
+            if (confidence < 0d) return 0d;
+            if (confidence > 1d) return 1d;
+            return confidence;
+        }
+    }
+
+    public sealed class RawSourceMetadata {
+        public RawSourceMetadata() {
+            FilePath = string.Empty;
+            FileName = string.Empty;
+            NativeFormat = string.Empty;
+            ReaderName = string.Empty;
+            ReaderVersion = string.Empty;
+            VendorSdkVersion = string.Empty;
+        }
+
+        public string FilePath { get; set; }
+        public string FileName { get; set; }
+        public string NativeFormat { get; set; }
+        public RawDataVendor Vendor { get; set; }
+        public string ReaderName { get; set; }
+        public string ReaderVersion { get; set; }
+        public string VendorSdkVersion { get; set; }
+    }
+
+    public sealed class RawInstrumentMetadata {
+        public RawInstrumentMetadata() {
+            Manufacturer = new MetadataValue<string>();
+            Model = new MetadataValue<string>();
+            Name = new MetadataValue<string>();
+            SerialNumber = new MetadataValue<string>();
+            IonAnalyzer = new MetadataValue<string>();
+            IonSource = new MetadataValue<string>();
+            Detector = new MetadataValue<string>();
+            SoftwareVersion = new MetadataValue<string>();
+            FirmwareVersion = new MetadataValue<string>();
+        }
+
+        public MetadataValue<string> Manufacturer { get; set; }
+        public MetadataValue<string> Model { get; set; }
+        public MetadataValue<string> Name { get; set; }
+        public MetadataValue<string> SerialNumber { get; set; }
+        public MetadataValue<string> IonAnalyzer { get; set; }
+        public MetadataValue<string> IonSource { get; set; }
+        public MetadataValue<string> Detector { get; set; }
+        public MetadataValue<string> SoftwareVersion { get; set; }
+        public MetadataValue<string> FirmwareVersion { get; set; }
+    }
+
+    public sealed class RawRunMetadata {
+        public RawRunMetadata() {
+            AcquisitionStartTime = new MetadataValue<DateTimeOffset?>();
+            Operator = new MetadataValue<string>();
+            Description = new MetadataValue<string>();
+            AcquisitionMethodName = new MetadataValue<string>();
+            ProcessingMethodName = new MetadataValue<string>();
+            ScanCount = new MetadataValue<int?>();
+            StartTimeMinutes = new MetadataValue<double?>();
+            EndTimeMinutes = new MetadataValue<double?>();
+            LowestMz = new MetadataValue<double?>();
+            HighestMz = new MetadataValue<double?>();
+        }
+
+        public MetadataValue<DateTimeOffset?> AcquisitionStartTime { get; set; }
+        public MetadataValue<string> Operator { get; set; }
+        public MetadataValue<string> Description { get; set; }
+        public MetadataValue<string> AcquisitionMethodName { get; set; }
+        public MetadataValue<string> ProcessingMethodName { get; set; }
+        public MetadataValue<int?> ScanCount { get; set; }
+        public MetadataValue<double?> StartTimeMinutes { get; set; }
+        public MetadataValue<double?> EndTimeMinutes { get; set; }
+        public MetadataValue<double?> LowestMz { get; set; }
+        public MetadataValue<double?> HighestMz { get; set; }
+    }
+
+    public sealed class RawAcquisitionMetadata {
+        public RawAcquisitionMetadata() {
+            Polarity = new MetadataValue<RawPolarityMode>();
+            Method = new MetadataValue<RawAcquisitionMethod>();
+            Separation = new MetadataValue<RawSeparationTechnique>();
+            HasIonMobility = new MetadataValue<bool?>();
+            HasImaging = new MetadataValue<bool?>();
+            HasMs1 = new MetadataValue<bool?>();
+            HasMs2 = new MetadataValue<bool?>();
+            SpectrumRepresentation = new MetadataValue<string>();
+            CollisionEnergies = new List<double>();
+            IsolationWindowTargets = new List<double>();
+            MsLevels = new List<int>();
+        }
+
+        public MetadataValue<RawPolarityMode> Polarity { get; set; }
+        public MetadataValue<RawAcquisitionMethod> Method { get; set; }
+        public MetadataValue<RawSeparationTechnique> Separation { get; set; }
+        public MetadataValue<bool?> HasIonMobility { get; set; }
+        public MetadataValue<bool?> HasImaging { get; set; }
+        public MetadataValue<bool?> HasMs1 { get; set; }
+        public MetadataValue<bool?> HasMs2 { get; set; }
+        public MetadataValue<string> SpectrumRepresentation { get; set; }
+        public List<double> CollisionEnergies { get; set; }
+        public List<double> IsolationWindowTargets { get; set; }
+        public List<int> MsLevels { get; set; }
+    }
+
+    public sealed class RawSampleMetadata {
+        public RawSampleMetadata() {
+            Id = new MetadataValue<string>();
+            Name = new MetadataValue<string>();
+            Comment = new MetadataValue<string>();
+            Vial = new MetadataValue<string>();
+            Plate = new MetadataValue<string>();
+            Rack = new MetadataValue<string>();
+            Type = new MetadataValue<RawSampleType>();
+            ClassName = new MetadataValue<string>();
+            AnalyticalOrder = new MetadataValue<int?>();
+            Batch = new MetadataValue<int?>();
+            VendorFields = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+        }
+
+        public MetadataValue<string> Id { get; set; }
+        public MetadataValue<string> Name { get; set; }
+        public MetadataValue<string> Comment { get; set; }
+        public MetadataValue<string> Vial { get; set; }
+        public MetadataValue<string> Plate { get; set; }
+        public MetadataValue<string> Rack { get; set; }
+        public MetadataValue<RawSampleType> Type { get; set; }
+        public MetadataValue<string> ClassName { get; set; }
+        public MetadataValue<int?> AnalyticalOrder { get; set; }
+        public MetadataValue<int?> Batch { get; set; }
+        public Dictionary<string, string> VendorFields { get; set; }
+    }
+
+    public sealed class RawExperimentMetadata {
+        public RawExperimentMetadata() {
+            Id = string.Empty;
+            Name = string.Empty;
+            Polarity = new MetadataValue<RawPolarityMode>();
+            Method = new MetadataValue<RawAcquisitionMethod>();
+            VendorFields = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+        }
+
+        public string Id { get; set; }
+        public string Name { get; set; }
+        public MetadataValue<RawPolarityMode> Polarity { get; set; }
+        public MetadataValue<RawAcquisitionMethod> Method { get; set; }
+        public Dictionary<string, string> VendorFields { get; set; }
+    }
+
+    public sealed class RawMetadataWarning {
+        public RawMetadataWarning() {
+            Code = string.Empty;
+            Message = string.Empty;
+        }
+
+        public RawMetadataWarning(string code, string message) {
+            Code = code ?? string.Empty;
+            Message = message ?? string.Empty;
+        }
+
+        public string Code { get; set; }
+        public string Message { get; set; }
+    }
+
+    public sealed class RawDataMetadata {
+        public RawDataMetadata() {
+            SchemaVersion = "msdial.raw-metadata.v1";
+            Source = new RawSourceMetadata();
+            Instrument = new RawInstrumentMetadata();
+            Run = new RawRunMetadata();
+            Acquisition = new RawAcquisitionMetadata();
+            Samples = new List<RawSampleMetadata>();
+            Experiments = new List<RawExperimentMetadata>();
+            VendorFields = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+            Warnings = new List<RawMetadataWarning>();
+        }
+
+        public string SchemaVersion { get; set; }
+        public RawSourceMetadata Source { get; set; }
+        public RawInstrumentMetadata Instrument { get; set; }
+        public RawRunMetadata Run { get; set; }
+        public RawAcquisitionMetadata Acquisition { get; set; }
+        public List<RawSampleMetadata> Samples { get; set; }
+        public List<RawExperimentMetadata> Experiments { get; set; }
+        public Dictionary<string, string> VendorFields { get; set; }
+        public List<RawMetadataWarning> Warnings { get; set; }
+    }
+
+    public sealed class RawMetadataReadOptions {
+        public RawMetadataReadOptions() {
+            MaxSpectrumHeaders = 200;
+            IncludeVendorFields = true;
+        }
+
+        public int MaxSpectrumHeaders { get; set; }
+        public bool IncludeVendorFields { get; set; }
+    }
+
+    public interface IRawMetadataReader {
+        string ReaderName { get; }
+        bool CanRead(string path);
+        RawDataMetadata ReadMetadata(string path, RawMetadataReadOptions options);
+    }
+}
diff --git a/src/Common/CommonStandard/DataObj/RawMeasurement.cs b/src/Common/CommonStandard/DataObj/RawMeasurement.cs
index 91f990a2d..982c804c0 100644
--- a/src/Common/CommonStandard/DataObj/RawMeasurement.cs
+++ b/src/Common/CommonStandard/DataObj/RawMeasurement.cs
@@ -70,6 +70,7 @@ public class RawMeasurement {
         public List<double> CollisionEnergyTargets { get; set; }
         public MaldiFrameLaserInfo MaldiFrameLaserInfo { get; set; }
         public List<MaldiFrameInfo> MaldiFrames { get; set; }
+        public RawDataMetadata Metadata { get; set; }
 
         public RawMeasurement()
         {
@@ -83,6 +84,7 @@ public RawMeasurement()
             MaldiFrameLaserInfo = new MaldiFrameLaserInfo();
 
             MaldiFrames = new List<MaldiFrameInfo>();
+            Metadata = new RawDataMetadata();
         }
     }
 
diff --git a/tests/Common/CommonStandardTests/DataObj/RawDataMetadataTests.cs b/tests/Common/CommonStandardTests/DataObj/RawDataMetadataTests.cs
new file mode 100644
index 000000000..237e39209
--- /dev/null
+++ b/tests/Common/CommonStandardTests/DataObj/RawDataMetadataTests.cs
@@ -0,0 +1,29 @@
+using CompMs.Common.DataObj;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace CommonStandardTests.DataObj {
+    [TestClass]
+    public sealed class RawDataMetadataTests {
+        [TestMethod]
+        public void RawMeasurement_InitializesMetadataContract() {
+            var measurement = new RawMeasurement();
+
+            Assert.IsNotNull(measurement.Metadata);
+            Assert.AreEqual("msdial.raw-metadata.v1", measurement.Metadata.SchemaVersion);
+            Assert.IsNotNull(measurement.Metadata.Samples);
+            Assert.IsNotNull(measurement.Metadata.Experiments);
+        }
+
+        [DataTestMethod]
+        [DataRow(-1d, 0d)]
+        [DataRow(0.75d, 0.75d)]
+        [DataRow(2d, 1d)]
+        public void MetadataValue_NormalizesConfidence(double input, double expected) {
+            var value = new MetadataValue<string>("value", MetadataSource.VendorHeader, input, "header");
+
+            Assert.AreEqual(expected, value.Confidence, 0.0001d);
+            Assert.AreEqual(MetadataSource.VendorHeader, value.Source);
+            Assert.AreEqual("header", value.Evidence);
+        }
+    }
+}