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| MIL-STD-31000C - DOD Standard Practice Technical Data Packages | Reference | 2025 |
| 2D TDP | 2-Dimensional Technical Data Package |
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| A 2-Dimensional Technical Data Package is based on 2 dimensional engineering drawings in accordance with ASME Y14.100 series standards. |
| A 3-dimensional viewable representation of an item provided in a widely available software format (e.g. ISO 32000-1 Portable Document Format (PDF)). This representation details the complete technical description of the required design configuration to include but not limited to geometry, topology, relationships, tolerances, attributes, metadata and other features necessary to define a component or assembly. |
| 3D TDP | 3-Dimensional Technical Data Package |
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| A 3-Dimensional Technical Data Package is based on product model data that is capable of generating derivative products including but not limited to 2D TDP, 3D lightweight graphical representations, and neutral data formats. |
| The standard arrangement and organization of information within a 3Di viewable representation of an item. This includes such features as the size and arrangement of information blocks (e.g. title blocks), notes, lists, revision information, view states, restriction notices and the use of optional or supplemental blocks (see related term Drawing Format). |
| A set of technical data which has been released and validated as adequate and complete for its intended purpose. |
| Engineering design data which describe the engineering concepts on which a proposed technology or design approach is based. |
| A completed document defining the data deliverables required of a DOD contractor. A DID specifically defines the data content, format and intended use of the data with a primary objective of achieving standardization of data deliverables by the DOD. (MIL-STD-963). |
| A set of technical data generated from master technical data. Typically derivative technical data is created to change its format to suit a different purpose. For example converting master, native format data to neutral or viewable data (e.g. STEP, PDF, etc.) so as to allow it to be read by a wider range of software applications. Changes to derivative technical data originate on the master technical dataset. |
| Documents referred to in a TDP element, which contain information necessary to meet the information content requirements of that TDP element. |
| A set of technical data which is provided for information, but is not necessarily validated as accurate, adequate and complete. |
| Deliverable data products used by the procuring activity to better acquire and support the end product defined by the TDP. When supplementary technical data is required, it shall be delivered in accordance with the contract. |
| A data product that is an actual component of the TDP. A TDP element provides all or part of the information necessary to define the item being documented by the TDP. All TDP elements taken collectively provide a complete Technical Data Package. |
| TDP levels provide for a natural progression of a design from its inception to production. A particular TDP level may be ordered to define a conceptual design, a developmental prototype or limited production design, or full scale production of the item by the original design activity or any other capable manufacturer. TDPs consist of one of three Levels: (1) Conceptual Level (2) Developmental Level (3) Production Level. |
| Metadata consist of data from and about TDP elements and is used by the procuring activity to manage the TDP development process and to better acquire and support the end product defined by the TDP. When metadata is required, it shall be delivered in accordance with the contract. |
| TDP type describes the form and format of the data. The following types can be imposed by the contract: Type 2D (2-Dimensional (2D) Technical Data Package) or Type 3D (3-Dimensional (3D) Technical Data Package). |
| The authoritative technical description of an item. This technical description supports the acquisition, production, inspection, engineering, and logistics support of the item. |  |
| A data product that is used to monitor and control the development and maintenance of the TDP. A TDP data management product contains information about the TDP rather than the item being documented. |
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3-Dimensional (3D) Technical Data Package.
Type 3D will include one or more of the below as specified in the contract and TDP Option Selection Worksheet: (1) 3D native models. (2) 2D drawings derived from the 3D native models. (3) 3Di pdf viewable data derived from the 3D native models. (4) Neutral files derived from the 3D native models. |
| CAD data which is derived from the native format and converted into a format which can be displayed by a widely available software and for purposes of defining design intent in a human readable format (e.g. 3Di PDF). In general, viewable CAD data cannot serve as master technical data but may serve as either reference or authoritative technical data. |  |
