DDMMYYCZZZX

DDMMYYCZZZX is an alphanumeric pattern used to illustrate how a composite identifier can be structured in data systems. It is not tied to a specific, official standard; rather, it serves as a generic template for demonstrating how a code can encode a date, category, serial, and revision within a fixed length.

The pattern comprises 11 characters. The first six are intended to represent a date in DDMMYY format (two digits for day, two for month, two for year). The seventh position is a single uppercase letter used for a category, site, or product-line designation. The next three positions are uppercase letters functioning as a batch, zone, or serial segment. The final position is a single letter used as a revision, check, or format variant marker.

An illustrative instance of the pattern is 150724CZZZX. In this example, the date portion denotes 15 July 2024, the letter C identifies a category or location, ZZZ serves as a batch or serial code, and X indicates a revision or variant of the item referenced by the code.

Common applications for such patterns include manufacturing batch tracing, logistics and inventory tagging, archival or library catalog references, and tagging of digital assets or software releases. To decode a code of this form, one would interpret the first six characters as a date, the seventh as a category or site code, the next three as a serial or batch identifier, and the final character as a revision or variant indicator.

See also: date codes, batch numbers, asset tagging, cataloging schemes.