What do informal documents like text messages generally lack compared to formal reports?

Informal documents, such as text messages, typically differ from formal reports primarily in their structure and level of formality. Formal reports are designed to convey information in a clear, organized manner, following specific guidelines for format, tone, and content. They often include sections like an introduction, body, conclusion, and references, ensuring that the information is presented logically and comprehensively.

In contrast, informal documents like text messages tend to be spontaneous and may not adhere to any particular structure. They often use casual language, abbreviations, and slang, focusing more on immediate communication rather than formal presentation. This lack of structure and formality means that informal documents may lack the comprehensive detail and rigid organization found in formal reports, making it essential to select the appropriate document type based on the audience and purpose.