diff --git a/adapter/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/adapter/tools/tlc/TlcAdapter.kt b/adapter/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/adapter/tools/tlc/TlcAdapter.kt
index 6815d23..4a0d0e4 100644
--- a/adapter/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/adapter/tools/tlc/TlcAdapter.kt
+++ b/adapter/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/adapter/tools/tlc/TlcAdapter.kt
@@ -19,6 +19,10 @@ import de.fraunhofer.iem.kpiCalculator.model.adapter.tlc.TlcDefaultConfig
 import de.fraunhofer.iem.kpiCalculator.model.adapter.tlc.TlcDto
 import de.fraunhofer.iem.kpiCalculator.model.kpi.KpiId
 import de.fraunhofer.iem.kpiCalculator.model.kpi.RawValueKpi
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.decodeFromStream
+import java.io.InputStream
 
 sealed class TechLagResult {
     data class Success(val libyear: Long) : TechLagResult()
@@ -27,6 +31,16 @@ sealed class TechLagResult {
 
 object TlcAdapter {
 
+    private val jsonParser = Json {
+        ignoreUnknownKeys = true
+        explicitNulls = false
+    }
+
+    @OptIn(ExperimentalSerializationApi::class)
+    fun dtoFromJson(jsonData: InputStream): TlcDto {
+        return jsonParser.decodeFromStream<TlcDto>(jsonData)
+    }
+
     fun transformDataToKpi(
         data: Collection<TlcDto>,
         config: TlcConfig = TlcDefaultConfig.get()
diff --git a/model/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/model/adapter/tlc/TlcDefaultConfig.kt b/model/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/model/adapter/tlc/TlcDefaultConfig.kt
index 12d5b39..a802695 100644
--- a/model/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/model/adapter/tlc/TlcDefaultConfig.kt
+++ b/model/src/main/kotlin/de/fraunhofer/iem/kpiCalculator/model/adapter/tlc/TlcDefaultConfig.kt
@@ -44,4 +44,4 @@ object TlcDefaultConfig {
             )
         )
     }
-}
\ No newline at end of file
+}