diff --git a/file-formats/doma/type/zif_aff_doma_v1.intf.abap b/file-formats/doma/type/zif_aff_doma_v1.intf.abap
index 877e5e484..c1e9caf2f 100644
--- a/file-formats/doma/type/zif_aff_doma_v1.intf.abap
+++ b/file-formats/doma/type/zif_aff_doma_v1.intf.abap
@@ -185,18 +185,6 @@ INTERFACE zif_aff_doma_v1 PUBLIC.
                engineering                  TYPE ty_output_style VALUE '06',
              END OF co_output_style.
 
-  "! <p class="shorttext">No Characters</p>
-  "! Number of characters
-  "! $minimum 0
-  "! $maximum 999999
-  TYPES ty_length               TYPE i.
-
-  "! <p class="shorttext">Decimals</p>
-  "! Decimals
-  "! $minimum 0
-  "! $maximum 999999
-  TYPES ty_decimals             TYPE i.
-
   "! <p class="shorttext">Output Length</p>
   "! Output length
   "! $minimum 0
@@ -212,15 +200,15 @@ INTERFACE zif_aff_doma_v1 PUBLIC.
       "! <p class="shorttext">Data Type</p>
       "! Data type
       "! $required
-      data_type TYPE ty_data_type,
+      data_type TYPE zif_aff_ddic_types_v1=>ty_data_type,
 
       "! <p class="shorttext">Length</p>
       "! Length
       "! $required
-      length    TYPE ty_length,
+      length    TYPE zif_aff_ddic_types_v1=>ty_length,
 
       "! Set if decimal
-      decimals  TYPE ty_decimals,
+      decimals  TYPE zif_aff_ddic_types_v1=>ty_decimals,
 
     END OF ty_format.
 
diff --git a/file-formats/dtel/README.md b/file-formats/dtel/README.md
new file mode 100644
index 000000000..35fca07ae
--- /dev/null
+++ b/file-formats/dtel/README.md
@@ -0,0 +1,13 @@
+# Dictionary Data Elements File Format
+
+## Object Type Information
+
+Object Type | Description | Group
+:--- | :--- | :---
+DTEL  | Dictionary Data Elements | Dictionary
+
+## File Structure
+
+File | Cardinality | Definition | Schema | Example
+:--- | :--- | :--- | :--- | :---
+`<name>.dtel.json` | 1 | [`zif_aff_dtel_v1.intf.abap`](./type/zif_aff_dtel_v1.intf.abap) | [`dtel-v1.json`](./dtel-v1.json) | [`z_aff_example.dtel.json`](./examples/z_aff_example.dtel.json)
diff --git a/file-formats/dtel/dtel-v1.json b/file-formats/dtel/dtel-v1.json
new file mode 100644
index 000000000..5012c03db
--- /dev/null
+++ b/file-formats/dtel/dtel-v1.json
@@ -0,0 +1,359 @@
+{
+  "$comment": "This file is autogenerated, do not edit manually, see https://github.com/SAP/abap-file-formats for more information.",
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://github.com/SAP/abap-file-formats/blob/main/file-formats/dtel/dtel-v1.json",
+  "title": "Data Element",
+  "description": "Data Element (DTEL)",
+  "type": "object",
+  "properties": {
+    "formatVersion": {
+      "title": "ABAP File Format Version",
+      "description": "The ABAP file format version",
+      "type": "string",
+      "const": "1"
+    },
+    "header": {
+      "title": "Header",
+      "description": "Header",
+      "type": "object",
+      "properties": {
+        "description": {
+          "title": "Description",
+          "description": "Description of the ABAP object",
+          "type": "string",
+          "maxLength": 60
+        },
+        "originalLanguage": {
+          "title": "Original Language",
+          "description": "Original language of the ABAP object",
+          "type": "string",
+          "minLength": 2
+        },
+        "abapLanguageVersion": {
+          "title": "ABAP Language Version",
+          "description": "ABAP language version",
+          "type": "string",
+          "enum": [
+            "standard",
+            "keyUser",
+            "cloudDevelopment"
+          ],
+          "enumTitles": [
+            "Standard",
+            "ABAP for Key Users",
+            "ABAP Cloud Development"
+          ],
+          "enumDescriptions": [
+            "Standard",
+            "ABAP for key user extensibility",
+            "ABAP cloud development"
+          ],
+          "default": "standard"
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "description",
+        "originalLanguage"
+      ]
+    },
+    "dataTypeInformation": {
+      "title": "Data Type Information",
+      "description": "Data type information",
+      "type": "object",
+      "properties": {
+        "domainName": {
+          "title": "Domain Name",
+          "description": "Reference domain name",
+          "type": "string",
+          "maxLength": 30
+        },
+        "predefinedType": {
+          "title": "Predefined Type",
+          "description": "Predefined ABAP type",
+          "type": "object",
+          "properties": {
+            "dataType": {
+              "title": "Data Type",
+              "description": "Data type",
+              "type": "string",
+              "enum": [
+                "ACCP",
+                "CHAR",
+                "CLNT",
+                "CUKY",
+                "CURR",
+                "DF16_DEC",
+                "DF16_RAW",
+                "DF16_SCL",
+                "DECFLOAT16",
+                "DF34_DEC",
+                "DF34_RAW",
+                "DF34_SCL",
+                "DECFLOAT34",
+                "DATS",
+                "DATN",
+                "DEC",
+                "FLTP",
+                "GEOM_EWKB",
+                "INT1",
+                "INT2",
+                "INT4",
+                "INT8",
+                "LANG",
+                "LCHR",
+                "LRAW",
+                "NUMC",
+                "PREC",
+                "QUAN",
+                "RAW",
+                "RAWSTRING",
+                "SSTRING",
+                "STRING",
+                "TIMS",
+                "TIMN",
+                "UNIT",
+                "UTCLONG",
+                "VARC"
+              ],
+              "enumTitles": [
+                "Posting period YYYYMM",
+                "Character String",
+                "Client",
+                "Currency Key",
+                "Currency Field",
+                "Decimal Floating Point, 16 Digits, DEC on Database",
+                "Decimal Floating Point, 16 Digits, RAW on Database",
+                "Decimal Floating Point. 16 Digits, with Scale Field",
+                "Floating Point Number, HANA Type, Small Decimal",
+                "Decimal Floating Point, 34 Digits, DEC on Database",
+                "Decimal Floating Point, 34 Digits, RAW on Database",
+                "Decimal Floating Point, 34 Digits, with Scale Field",
+                "Floating Point Number, HANA Type, Large Decimal",
+                "Date (YYYYMMDD)",
+                "Date (YYYYMMDD), HANA Type",
+                "Counter or Amount",
+                "Floating Point Number",
+                "Geometry",
+                "1-Byte Integer",
+                "2-Byte Integer",
+                "4-Byte Integer",
+                "8-Byte Integer",
+                "Language Key",
+                "Long Character String",
+                "Long Byte String",
+                "Numeric Character String",
+                "Obsolete Data Type PREC (Do Not Use)",
+                "Quantity",
+                "Uninterpreted sequence of bytes",
+                "Byte String of Variable Length",
+                "Short Character String of Variable Length",
+                "Character String of Variable Length",
+                "Time (hhmmss)",
+                "Time (hhmmss; Native HANA Type)",
+                "Unit",
+                "Timestamp, HANA Type",
+                "Long character string, no longer supported from Rel. 3.0"
+              ],
+              "enumDescriptions": [
+                "Posting period YYYYMM",
+                "Character string",
+                "Client",
+                "Currency key, referenced by CURR fields",
+                "Currency field, stored as DEC",
+                "Decimal floating point, 16 digits, DEC on database",
+                "Decimal floating point, 16 digits, RAW on database",
+                "Decimal floating point. 16 digits, with scale field",
+                "Floating point number, HANA type, small decimal",
+                "Decimal floating point, 34 Digits, DEC on database",
+                "Decimal floating point, 34 Digits, RAW on database",
+                "Decimal floating point, 34 digits, with scale field",
+                "Floating point number, HANA type, large decimal",
+                "Date field (YYYYMMDD), stored as char(8)",
+                "Date field (YYYYMMDD), HANA type",
+                "Counter or amount field with comma and sign",
+                "Floating point number, accurate to 8 bytes",
+                "Geometry, EWKB representation",
+                "1-byte integer, integer number <= 255",
+                "2-byte integer, only for length field before LCHR or LRAW",
+                "4-byte integer, integer number with sign",
+                "8-byte integer, integer number with sign",
+                "Language key",
+                "Long character string, requires preceding INT2 field",
+                "Long byte string, requires preceding INT2 field",
+                "Character string with only digits",
+                "Obsolete data type PREC, do not use",
+                "Quantity field, points to a unit field with format UNIT",
+                "Uninterpreted sequence of bytes",
+                "Byte String of Variable Length",
+                "Short Character String of Variable Length",
+                "Character String of Variable Length",
+                "Time field (hhmmss), stored as char(6)",
+                "Time field (hhmmss), native HANA type",
+                "Unit key for QUAN fields",
+                "Timestamp, HANA type",
+                "Long character string, no longer supported from Rel. 3.0"
+              ],
+              "default": "CHAR"
+            },
+            "length": {
+              "title": "Length",
+              "description": "Length",
+              "type": "integer",
+              "minimum": 0,
+              "maximum": 999999
+            },
+            "decimals": {
+              "title": "Decimals",
+              "description": "Decimals",
+              "type": "integer",
+              "minimum": 0,
+              "maximum": 999999
+            }
+          },
+          "additionalProperties": false,
+          "required": [
+            "dataType",
+            "length"
+          ]
+        },
+        "referenceType": {
+          "title": "Reference Type",
+          "description": "Reference to an ABAP type",
+          "type": "string",
+          "maxLength": 30
+        },
+        "referencePredefinedType": {
+          "title": "Reference Predefined Type",
+          "description": "Reference to a predefined ABAP type",
+          "type": "string",
+          "maxLength": 30
+        }
+      },
+      "additionalProperties": false
+    },
+    "fieldLabels": {
+      "title": "Field Labels",
+      "description": "Field labels",
+      "type": "object",
+      "properties": {
+        "short": {
+          "title": "Short",
+          "description": "Short field label",
+          "type": "string",
+          "maxLength": 10
+        },
+        "medium": {
+          "title": "Medium",
+          "description": "Medium field label",
+          "type": "string",
+          "maxLength": 20
+        },
+        "long": {
+          "title": "Long",
+          "description": "Long field label",
+          "type": "string",
+          "maxLength": 40
+        },
+        "heading": {
+          "title": "Heading",
+          "description": "Heading field label",
+          "type": "string",
+          "maxLength": 55
+        }
+      },
+      "additionalProperties": false
+    },
+    "searchHelp": {
+      "title": "Search Help",
+      "description": "Search help",
+      "type": "object",
+      "properties": {
+        "name": {
+          "title": "Name",
+          "description": "Search help name",
+          "type": "string",
+          "maxLength": 30
+        },
+        "parameter": {
+          "title": "Parameter",
+          "description": "Search help parameters",
+          "type": "string",
+          "maxLength": 30
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "name",
+        "parameter"
+      ]
+    },
+    "bidirectionalOptions": {
+      "title": "Bidirectional Options",
+      "description": "Bidirectional options",
+      "type": "object",
+      "properties": {
+        "basicDirection": {
+          "title": "Basic Direction",
+          "description": "Basic direction",
+          "type": "string",
+          "enum": [
+            "leftToRight",
+            "rightToLeft"
+          ],
+          "enumTitles": [
+            "Left to Right",
+            "Right to Left"
+          ],
+          "enumDescriptions": [
+            "Left to right",
+            "Right to left"
+          ],
+          "default": "leftToRight"
+        },
+        "noFiltering": {
+          "title": "Bidirectional no filtering",
+          "description": "Bidirectional no filtering",
+          "type": "boolean"
+        }
+      },
+      "additionalProperties": false
+    },
+    "additionalProperties": {
+      "title": "Additional Properties",
+      "description": "Additional properties",
+      "type": "object",
+      "properties": {
+        "parameterId": {
+          "title": "Set/Get parameter ID",
+          "description": "Set/Get parameter ID",
+          "type": "string",
+          "maxLength": 20
+        },
+        "defaultComponentName": {
+          "title": "Default component name",
+          "description": "Default component name",
+          "type": "string",
+          "maxLength": 30
+        },
+        "changeDocumentRelevant": {
+          "title": "Change document relevant",
+          "description": "Change document relevant",
+          "type": "boolean"
+        },
+        "noInputHistory": {
+          "title": "No input history",
+          "description": "No input history",
+          "type": "boolean"
+        }
+      },
+      "additionalProperties": false
+    }
+  },
+  "additionalProperties": false,
+  "required": [
+    "formatVersion",
+    "header",
+    "dataTypeInformation"
+  ]
+}
diff --git a/file-formats/dtel/examples/z_aff_example.dtel.json b/file-formats/dtel/examples/z_aff_example.dtel.json
new file mode 100644
index 000000000..1ee013852
--- /dev/null
+++ b/file-formats/dtel/examples/z_aff_example.dtel.json
@@ -0,0 +1,16 @@
+{
+  "formatVersion": "1",
+  "header": {
+    "description": "Example data element",
+    "originalLanguage": "en"
+  },
+  "dataTypeInformation":{
+    "domainName": "Z_AFF_EXAMPLE_DOMA"
+  },
+  "fieldLabels": {
+    "short": "Example",
+    "medium": "Example field",
+    "long": "Example data element field",
+    "heading": "Example data element"
+  }
+}
diff --git a/file-formats/dtel/type/zif_aff_dtel_v1.intf.abap b/file-formats/dtel/type/zif_aff_dtel_v1.intf.abap
new file mode 100644
index 000000000..f8f07d22a
--- /dev/null
+++ b/file-formats/dtel/type/zif_aff_dtel_v1.intf.abap
@@ -0,0 +1,162 @@
+INTERFACE zif_aff_dtel_v1 PUBLIC.
+
+  TYPES:
+    "! <p class="shorttext">Predefined Type</p>
+    "! Predefined ABAP type
+    BEGIN OF ty_predefined_type,
+      "! <p class="shorttext">Data Type</p>
+      "! Data type
+      "! $required
+      data_type TYPE zif_aff_ddic_types_v1=>ty_data_type,
+      "! <p class="shorttext">Length</p>
+      "! Length
+      "! $required
+      length    TYPE zif_aff_ddic_types_v1=>ty_length,
+      "! <p class="shorttext">Decimals</p>
+      "! Decimals
+      decimals  TYPE zif_aff_ddic_types_v1=>ty_decimals,
+    END OF ty_predefined_type.
+
+  TYPES:
+    "! <p class="shorttext">Field Labels</p>
+    "! Field labels
+    BEGIN OF ty_field_labels,
+      "! <p class="shorttext">Short</p>
+      "! Short field label
+      short   TYPE c LENGTH 10,
+      "! <p class="shorttext">Medium</p>
+      "! Medium field label
+      medium  TYPE c LENGTH 20,
+      "! <p class="shorttext">Long</p>
+      "! Long field label
+      long    TYPE c LENGTH 40,
+      "! <p class="shorttext">Heading</p>
+      "! Heading field label
+      heading TYPE c LENGTH 55,
+    END OF ty_field_labels.
+
+  TYPES:
+    "! <p class="shorttext">Data Type Information</p>
+    "! Data type information
+    BEGIN OF ty_data_type_information,
+      "! <p class="shorttext">Domain Name</p>
+      "! Reference domain name
+      domain_name               TYPE zif_aff_types_v1=>ty_object_name_30,
+
+      "! <p class="shorttext">Predefined Type</p>
+      "! Predefined ABAP type
+      predefined_type           TYPE ty_predefined_type,
+
+      "! <p class="shorttext">Reference Type</p>
+      "! Reference to an ABAP type
+      reference_type            TYPE zif_aff_types_v1=>ty_object_name_30,
+
+      "! <p class="shorttext">Reference Predefined Type</p>
+      "! Reference to a predefined ABAP type
+      reference_predefined_type TYPE zif_aff_types_v1=>ty_object_name_30,
+    END OF ty_data_type_information.
+
+  TYPES:
+    "! <p class="shorttext">Search Help</p>
+    "! Search help
+    BEGIN OF ty_search_help,
+      "! <p class="shorttext">Name</p>
+      "! Search help name
+      "! $required
+      name      TYPE zif_aff_types_v1=>ty_object_name_30,
+      "! <p class="shorttext">Parameter</p>
+      "! Search help parameters
+      "! $required
+      parameter TYPE c LENGTH 30,
+    END OF ty_search_help.
+
+
+  TYPES:
+      "! <p class="shorttext">Basic Direction</p>
+      "! Basic direction
+      "! $values {@link zif_aff_dtel_v1.co_bidi_basic_direction }
+      "! $default {@link zif_aff_dtel_v1.co_bidi_basic_direction.left_to_right }
+    ty_basic_direction TYPE c LENGTH 1.
+
+  CONSTANTS:
+    BEGIN OF co_bidi_basic_direction,
+      "! <p class="shorttext">Left to Right</p>
+      "! Left to right
+      left_to_right TYPE c LENGTH 1 VALUE ' ',
+      "! <p class="shorttext">Right to Left</p>
+      "! Right to left
+      right_to_left TYPE c LENGTH 1 VALUE 'X',
+    END OF co_bidi_basic_direction.
+
+  TYPES:
+    "! <p class="shorttext">Bidirectional Options</p>
+    "! Bidirectional options
+    BEGIN OF ty_bidirectional_options,
+      "! <p class="shorttext">Basic Direction</p>
+      "! Basic direction
+      basic_direction TYPE ty_basic_direction,
+
+      "! <p class="shorttext">Bidirectional no filtering</p>
+      "! Bidirectional no filtering
+      no_filtering    TYPE abap_bool,
+    END OF ty_bidirectional_options.
+
+
+  TYPES:
+    "! <p class="shorttext">Additional Properties</p>
+    "! Additional properties
+    BEGIN OF ty_additional_properties,
+      "! <p class="shorttext">Set/Get parameter ID</p>
+      "! Set/Get parameter ID
+      parameter_id             TYPE c LENGTH 20,
+
+      "! <p class="shorttext">Default component name</p>
+      "! Default component name
+      default_component_name   TYPE c LENGTH 30,
+
+      "! <p class="shorttext">Change document relevant</p>
+      "! Change document relevant
+      change_document_relevant TYPE abap_bool,
+
+      "! <p class="shorttext">No input history</p>
+      "! No input history
+      no_input_history         TYPE abap_bool,
+    END OF ty_additional_properties.
+
+
+  TYPES:
+    "! <p class="shorttext">Data Element</p>
+    "! Data Element (DTEL)
+    BEGIN OF ty_main,
+      "! $required
+      format_version        TYPE zif_aff_types_v1=>ty_format_version,
+
+      "! <p class="shorttext">Header</p>
+      "! Header
+      "! $required
+      header                TYPE zif_aff_types_v1=>ty_header_60,
+
+      "! <p class="shorttext">Data Type Information</p>
+      "! Data type information
+      "! $required
+      data_type_information TYPE ty_data_type_information,
+
+      "! <p class="shorttext">Field Labels</p>
+      "! Field labels
+      field_labels          TYPE ty_field_labels,
+
+      "! <p class="shorttext">Search Help</p>
+      "! Search help
+      search_help           TYPE ty_search_help,
+
+      "! <p class="shorttext">Bidirectional Options</p>
+      "! Bidirectional options
+      bidirectional_options TYPE ty_bidirectional_options,
+
+      "! <p class="shorttext">Additional Properties</p>
+      "! Additional properties
+      additional_properties TYPE ty_additional_properties,
+
+    END OF ty_main.
+
+ENDINTERFACE.
diff --git a/file-formats/dtel/type/zif_aff_dtel_v1.intf.json b/file-formats/dtel/type/zif_aff_dtel_v1.intf.json
new file mode 100644
index 000000000..0caefeae2
--- /dev/null
+++ b/file-formats/dtel/type/zif_aff_dtel_v1.intf.json
@@ -0,0 +1,7 @@
+{
+  "formatVersion": "1",
+  "header": {
+    "description": "AFF type for data elements",
+    "originalLanguage": "en"
+  }
+}
diff --git a/file-formats/zif_aff_ddic_types_v1.intf.abap b/file-formats/zif_aff_ddic_types_v1.intf.abap
new file mode 100644
index 000000000..7e4217ad5
--- /dev/null
+++ b/file-formats/zif_aff_ddic_types_v1.intf.abap
@@ -0,0 +1,175 @@
+"! <p class="shorttext synchronized" lang="en">Common DDIC types reusable in AFF</p>
+"! Types which can be reused for ABAP Dictionary object types (DOMA, DTEL, etc.)
+INTERFACE zif_aff_ddic_types_v1 PUBLIC.
+
+  "! <p class="shorttext">Data Type</p>
+  "! ABAP Dictionary data type
+  "! $values {@link zif_aff_ddic_types_v1.data:co_data_type}
+  "! $default {@link zif_aff_ddic_types_v1.data:co_data_type.char}
+  TYPES ty_data_type TYPE c LENGTH 4.
+
+  CONSTANTS:
+    BEGIN OF co_data_type,
+      "! <p class="shorttext">Posting period YYYYMM</p>
+      "! Posting period YYYYMM
+      "! $enumValue 'ACCP'
+      accp       TYPE ty_data_type VALUE 'ACCP',
+      "! <p class="shorttext">Character String</p>
+      "! Character string
+      "! $enumValue 'CHAR'
+      char       TYPE ty_data_type VALUE 'CHAR',
+      "! <p class="shorttext">Client</p>
+      "! Client
+      "! $enumValue 'CLNT'
+      clnt       TYPE ty_data_type VALUE 'CLNT',
+      "! <p class="shorttext">Currency Key</p>
+      "! Currency key, referenced by CURR fields
+      "! $enumValue 'CUKY'
+      cuky       TYPE ty_data_type VALUE 'CUKY',
+      "! <p class="shorttext">Currency Field</p>
+      "! Currency field, stored as DEC
+      "! $enumValue 'CURR'
+      curr       TYPE ty_data_type VALUE 'CURR',
+      "! <p class="shorttext">Decimal Floating Point, 16 Digits, DEC on Database</p>
+      "! Decimal floating point, 16 digits, DEC on database
+      "! $enumValue 'DF16_DEC'
+      df16_dec   TYPE ty_data_type VALUE 'D16D',
+      "! <p class="shorttext">Decimal Floating Point, 16 Digits, RAW on Database</p>
+      "! Decimal floating point, 16 digits, RAW on database
+      "! $enumValue 'DF16_RAW'
+      df16_raw   TYPE ty_data_type VALUE 'D16R',
+      "! <p class="shorttext">Decimal Floating Point. 16 Digits, with Scale Field</p>
+      "! Decimal floating point. 16 digits, with scale field
+      "! $enumValue 'DF16_SCL'
+      df16_scl   TYPE ty_data_type VALUE 'D16S',
+      "! <p class="shorttext">Floating Point Number, HANA Type, Small Decimal</p>
+      "! Floating point number, HANA type, small decimal
+      "! $enumValue 'DECFLOAT16'
+      decfloat16 TYPE ty_data_type VALUE 'D16N',
+      "! <p class="shorttext">Decimal Floating Point, 34 Digits, DEC on Database</p>
+      "! Decimal floating point, 34 Digits, DEC on database
+      "! $enumValue 'DF34_DEC'
+      df34_dec   TYPE ty_data_type VALUE 'D34D',
+      "! <p class="shorttext">Decimal Floating Point, 34 Digits, RAW on Database</p>
+      "! Decimal floating point, 34 Digits, RAW on database
+      "! $enumValue 'DF34_RAW'
+      df34_raw   TYPE ty_data_type VALUE 'D34R',
+      "! <p class="shorttext">Decimal Floating Point, 34 Digits, with Scale Field</p>
+      "! Decimal floating point, 34 digits, with scale field
+      "! $enumValue 'DF34_SCL'
+      df34_scl   TYPE ty_data_type VALUE 'D34S',
+      "! <p class="shorttext">Floating Point Number, HANA Type, Large Decimal</p>
+      "! Floating point number, HANA type, large decimal
+      "! $enumValue 'DECFLOAT34'
+      decfloat34 TYPE ty_data_type VALUE 'D34N',
+      "! <p class="shorttext">Date (YYYYMMDD)</p>
+      "! Date field (YYYYMMDD), stored as char(8)
+      "! $enumValue 'DATS'
+      dats       TYPE ty_data_type VALUE 'DATS',
+      "! <p class="shorttext">Date (YYYYMMDD), HANA Type</p>
+      "! Date field (YYYYMMDD), HANA type
+      "! $enumValue 'DATN'
+      datn       TYPE ty_data_type VALUE 'DATN',
+      "! <p class="shorttext">Counter or Amount</p>
+      "! Counter or amount field with comma and sign
+      "! $enumValue 'DEC'
+      dec        TYPE ty_data_type VALUE 'DEC',
+      "! <p class="shorttext">Floating Point Number</p>
+      "! Floating point number, accurate to 8 bytes
+      "! $enumValue 'FLTP'
+      fltp       TYPE ty_data_type VALUE 'FLTP',
+      "! <p class="shorttext">Geometry</p>
+      "! Geometry, EWKB representation
+      "! $enumValue 'GEOM_EWKB'
+      geom_ewkb  TYPE ty_data_type VALUE 'GGM1',
+      "! <p class="shorttext">1-Byte Integer</p>
+      "! 1-byte integer, integer number <= 255
+      "! $enumValue 'INT1'
+      int1       TYPE ty_data_type VALUE 'INT1',
+      "! <p class="shorttext">2-Byte Integer</p>
+      "! 2-byte integer, only for length field before LCHR or LRAW
+      "! $enumValue 'INT2'
+      int2       TYPE ty_data_type VALUE 'INT2',
+      "! <p class="shorttext">4-Byte Integer</p>
+      "! 4-byte integer, integer number with sign
+      "! $enumValue 'INT4'
+      int4       TYPE ty_data_type VALUE 'INT4',
+      "! <p class="shorttext">8-Byte Integer</p>
+      "! 8-byte integer, integer number with sign
+      "! $enumValue 'INT8'
+      int8       TYPE ty_data_type VALUE 'INT8',
+      "! <p class="shorttext">Language Key</p>
+      "! Language key
+      "! $enumValue 'LANG'
+      lang       TYPE ty_data_type VALUE 'LANG',
+      "! <p class="shorttext">Long Character String</p>
+      "! Long character string, requires preceding INT2 field
+      "! $enumValue 'LCHR'
+      lchr       TYPE ty_data_type VALUE 'LCHR',
+      "! <p class="shorttext">Long Byte String</p>
+      "! Long byte string, requires preceding INT2 field
+      "! $enumValue 'LRAW'
+      lraw       TYPE ty_data_type VALUE 'LRAW',
+      "! <p class="shorttext">Numeric Character String</p>
+      "! Character string with only digits
+      "! $enumValue 'NUMC'
+      numc       TYPE ty_data_type VALUE 'NUMC',
+      "! <p class="shorttext">Obsolete Data Type PREC (Do Not Use)</p>
+      "! Obsolete data type PREC, do not use
+      "! $enumValue 'PREC'
+      prec       TYPE ty_data_type VALUE 'PREC',
+      "! <p class="shorttext">Quantity</p>
+      "! Quantity field, points to a unit field with format UNIT
+      "! $enumValue 'QUAN'
+      quan       TYPE ty_data_type VALUE 'QUAN',
+      "! <p class="shorttext">Uninterpreted sequence of bytes</p>
+      "! Uninterpreted sequence of bytes
+      "! $enumValue 'RAW'
+      raw        TYPE ty_data_type VALUE 'RAW',
+      "! <p class="shorttext">Byte String of Variable Length</p>
+      "! Byte String of Variable Length
+      "! $enumValue 'RAWSTRING'
+      rawstring  TYPE ty_data_type VALUE 'RSTR',
+      "! <p class="shorttext">Short Character String of Variable Length</p>
+      "! Short Character String of Variable Length
+      "! $enumValue 'SSTRING'
+      sstring    TYPE ty_data_type VALUE 'SSTR',
+      "! <p class="shorttext">Character String of Variable Length</p>
+      "! Character String of Variable Length
+      "! $enumValue 'STRING'
+      string     TYPE ty_data_type VALUE 'STRG',
+      "! <p class="shorttext">Time (hhmmss)</p>
+      "! Time field (hhmmss), stored as char(6)
+      "! $enumValue 'TIMS'
+      tims       TYPE ty_data_type VALUE 'TIMS',
+      "! <p class="shorttext">Time (hhmmss; Native HANA Type)</p>
+      "! Time field (hhmmss), native HANA type
+      "! $enumValue 'TIMN'
+      timn       TYPE ty_data_type VALUE 'TIMN',
+      "! <p class="shorttext">Unit</p>
+      "! Unit key for QUAN fields
+      "! $enumValue 'UNIT'
+      unit       TYPE ty_data_type VALUE 'UNIT',
+      "! <p class="shorttext">Timestamp, HANA Type</p>
+      "! Timestamp, HANA type
+      "! $enumValue 'UTCLONG'
+      utclong    TYPE ty_data_type VALUE 'UTCL',
+      "! <p class="shorttext">Long character string, no longer supported from Rel. 3.0</p>
+      "! Long character string, no longer supported from Rel. 3.0
+      "! $enumValue 'VARC'
+      varc       TYPE ty_data_type VALUE 'VARC',
+    END OF co_data_type.
+
+  "! <p class="shorttext">Length</p>
+  "! Number of characters
+  "! $minimum 0
+  "! $maximum 999999
+  TYPES ty_length TYPE i.
+
+  "! <p class="shorttext">Decimals</p>
+  "! Decimals
+  "! $minimum 0
+  "! $maximum 999999
+  TYPES ty_decimals TYPE i.
+
+ENDINTERFACE.
diff --git a/file-formats/zif_aff_ddic_types_v1.intf.json b/file-formats/zif_aff_ddic_types_v1.intf.json
new file mode 100644
index 000000000..897e206d2
--- /dev/null
+++ b/file-formats/zif_aff_ddic_types_v1.intf.json
@@ -0,0 +1,7 @@
+{
+  "formatVersion": "1",
+  "header": {
+    "description": "Common DDIC types reusable in AFF",
+    "originalLanguage": "en"
+  }
+}