The standard IEC 61355-1 Classification and designation of documents for plants, systems and equipment[1] describes rules and guidelines for the uniform classification and identification of documents based on their characteristic content of information.
It is applied for all documents within the life cycle of a technical products like plants, systems or equipment. It also includes non-technical documents. The main application is the construction, erection and operation of industrial plants where the number of documents of all engineering disciplines may sum up to some 100,000 documents.
During 2024, the new cross-standard ISO/IEC 81355[2] will be published and will replace the second edition of IEC 61355-1 published in 2008. The new standard will switch from "document classification" to "information classification" methods.
The standard provides with the document kind classification code (DCC) a structured letter-code for the classification of any kind of document.
A public access database IEC 61355 DB[3] is available in order to facilitate the individuation of the correct code to be applied to a document
The document kind classification code consists of three code-letters A1, A2, A3, with the prefix "&".
The letter code A1 is optional, if all documents are from the same technical area. The letter codes A2 and A3 are identical for all technical areas.
The technical areas are:
| A1 | Technical area | |
|---|---|---|
| A | Overall management | |
| B | Overall technology | |
| C | Construction engineering | |
| E | Electrical engineering, instrumentation and control engineering | |
| M | Mechanical engineering (normally including process engineering)) | |
| P | Process engineering (only if separation from M is required)) |
The main classes are:
| A2 | document kind classes, main classes | |
|---|---|---|
| A | Documentation describing documents | |
| B | Management documents | |
| C | Contractual and non-technical documents | |
| D | General technical information documents | |
| E | Technical requirement and dimensioning documents | |
| F | Function describing documents | |
| L | Location documents | |
| M | Connection describing documents | |
| P | Object listings | |
| Q | Quality management documents; safety-describing documents | |
| T | Geometry-related documents | |
| W | Operation records |
Table of main classes and subclasses
| A2 A3 | Document kind classes, main class and subclass | Examples of document kinds | |
|---|---|---|---|
| A | Documentation describing documents | ||
| AA | Administrative documents |
| |
| AB | Lists (regarding documents) |
| |
| AC | Explanatory documents (regarding documents) |
| |
| AD ... AY | Reserved for future standardization | ||
| AZ | Free for user | ||
| B | Management documents | ||
| BA | Registers |
| |
| BB | Reports |
| |
| BC | Correspondence |
| |
| BD | Project control documents |
| |
| BE | Resource planning documents |
| |
| BF | Dispatch, storage and transport documents |
| |
| BG | Site planning and site organization documents |
| |
| BH | Documents regarding changes |
| |
| BJ ... BR | Reserved for future standardization | ||
| BS | Security documents |
| |
| BT | Training specific documents |
| |
| BU ... BY | Reserved for future standardization | ||
| BZ | Free for user | ||
| C | Contractual and nontechnical documents | ||
| CA | Inquiry, calculation and offer documents |
| |
| CB | Approval documents |
| |
| CC | Contractual documents |
| |
| CD | Order and delivery documents |
| |
| CE | Invoice documents | ||
| CF | Insurance documents |
| |
| CG | Warranty documents |
| |
| CH | Expertises |
| |
| CJ ... CY | Reserved for future standardization | ||
| CZ | Free for user | ||
| D | General technical information documents | ||
| DA | Data sheets |
| |
| DB | Explanatory documents |
| |
| DC | Instructions and manuals |
| |
| DD | Technical reports |
| |
| DE | Catalogues Advertising documents |
| |
| DF | Technical publications |
| |
| DG ... DY | Reserved for future standardization | ||
| DZ | Free for user | ||
| E | Technical requirement and dimensioning documents | ||
| EA | Legal requirement documents |
| |
| EB | Standards and regulations |
| |
| EC | Technical specification / requirement documents |
| |
| ED | Dimensioning documents |
| |
| EE ... EY | Reserved for future standardization | ||
| EZ | Free for user | ||
| F | Function-describing documents | ||
| FA | Functional overview documents |
| |
| FB | Flow diagrams |
| |
| FC | MMI layout documents (MMI = man-machine interface) |
| |
| FD | Reserved for future standardization | ||
| FE | Function descriptions |
| |
| FF | Function diagrams |
| |
| FG ... FN | Reserved for future standardization | ||
| FP | Signal descriptions |
| |
| FQ | Setting value documents |
| |
| FR | Reserved for future standardization | ||
| FS | Circuitry documents | ||
| FT | Software specific documents |
| |
| FU ... FY | Reserved for future standardization | ||
| FZ | Free for user | ||
| L | Location documents | ||
| LA | Exploitation and survey documents |
| |
| LB | Earthwork and foundation work documents |
| |
| LC | Building carcass documents |
| |
| LD | On-site location documents |
| |
| LE ... LG | Reserved for future standardization | ||
| LH | In-building location documents (also applied for ships, aircraft, etc.) |
| |
| LJ ... LT | Reserved for future standardization | ||
| LU | In/on-equipment location documents |
| |
| LV ... LY | Reserved for future standardization | ||
| LZ | Free for user | ||
| M | Connection-describing documents | ||
| MA | Connection documents |
| |
| MB | Cabling or piping documents |
| |
| MC ... MY | Reserved for future standardization | ||
| MZ | Free for user | ||
| P | Object listings | ||
| PA | Material lists |
| |
| PB | Parts lists |
| |
| PC | Item lists |
| |
| PD | Product lists and product type lists |
| |
| PE | Reserved for future standardization | ||
| PF | Function lists |
| |
| PG ... PK | Reserved for future standardization | ||
| PL | Location lists |
| |
| PM ... PY | Reserved for future standardization | ||
| PZ | Free for user | ||
| Q | Quality management documents and safety-describing documents | ||
| QA | Quality management documents |
| |
| QB | Safety-describing documents |
| |
| QC | Quality verifying documents |
| |
| QD ... QY | Reserved for future standardization | ||
| QZ | Free for user | ||
| T | Geometrical form describing documents | ||
| TA | Planning drawings |
| |
| TB | Construction drawings |
| |
| TC | Manufacturing and erection drawings |
| |
| TD ... TK | Reserved for future standardization | ||
| TL | Arrangement documents |
| |
| TM ... TY | Reserved for future standardization | ||
| TZ | Free for user | ||
| W | Operational protocols and records | ||
| WA | Set point documents |
| |
| WB ... WS | Reserved for future standardization | ||
| WT | Logbooks |
| |
| WU ... WY | Reserved for future standardization | ||
| WZ | Free for user |
Designation codes for document kind classification codes in power plants (DCC key) published by VGB PowerTech e.V.
ISBN 978-3-86875-331-8