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For if you are struggling to write a traditional linear text that works for multiple readers.
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For if you are struggling to write a traditional linear text that works for multiple readers.
A layered document doesn’t try to say everything in a single linear text. Instead it presents information in graphically separate layers to make reading easier, or to suit different types of reader, or different reading occasions.
Version layering presents the same content in parallel versions. A typical example is a legally-framed document that needs to be understood by a non-expert.1 For example, an insurance policy might be presented in legally correct language, with interpretation notes in a separate column. Readers can quickly see the main points, and decide if they need to read more. Readers who are content experts can use the simpler layer to explain the content to non-experts.
Filtered layering is where detailed information is removed to less prominent places, such as footnotes, an appendix or a pop-up box.
With drill down layering a text is progressively elaborated at different levels of detail. There might be a top layer which can be quickly skimmed, and readers can move on to progressively more detailed explanations. For example, a utility bill might have a prominent total, followed by a breakdown of the cost, followed by detailed meter readings or call records. Or an electronic product might have a quick start guide, backed up by a more detailed manual.
Layering is an age-old design pattern which has its origins in ancient religious texts. In this traditional form, a central sacred message, which cannot be changed, is layered with headings, commentary, cross-references, reader’s helps, and even commentary on the commentary.
1. Waller, R., Passera, S., Haapio, H. (2022). Layered Contracts: Both Legally Functional and Human- Friendly. In: Jacob, K., Schindler, D., Strathausen, R., Waltl, B. (eds) Liquid Legal – Humanization and the Law. Law for Professionals. Springer, Cham.