What a brand identity system includes
The identity is everything that makes your material recognisable before anyone reads the name: a colour range with defined roles rather than a swatch, a typographic scale for headlines, body and interface text, a layout grid, an approach to photography and illustration, iconography, and the rules that tie them together. The logo is one component inside it — an important one, and the subject of its own page.
The test of a system is the awkward case, not the poster. Does the palette still work when it is a two-colour print job? Does the headline face have an Arabic companion with a matching weight range, or does the Arabic quietly fall back to a system font on every device? Does the layout survive a right-to-left flip, or do the alignments and the logo end up on the wrong side? We design against those cases from the start, because they are where identities actually break.
Bilingual typography is the part that most often goes wrong here. Arabic and Latin faces are drawn to different proportions, so the same point size reads as two different sizes side by side, and an Arabic face chosen only for its display weights leaves you with nothing usable at body size. We pair the two deliberately — matched weights, an agreed optical size relationship, and licences that cover print, web and app use — and we set real Arabic copy at real sizes before we sign off on anything.
None of this is decided by taste alone. The identity should be arguing the positioning — if the strategy says you are the precise, engineering-led option, an identity built on loose handwriting is fighting its own brief. Where a written strategy already exists we design to it; where it does not, we agree the few decisions we are designing against before starting.