Here's why:
* Different standards and conventions: There are different drafting standards used globally (e.g., ISO, ANSI, DIN). While there are overlaps, nuances and variations exist, making it challenging for someone unfamiliar with a specific standard to fully understand a drawing.
* Technical language: Drafting relies heavily on technical terms and symbols specific to a particular field or industry. Someone outside that field may not understand the meaning of these terms or symbols.
* Cultural differences: Even within a shared technical vocabulary, cultural differences can affect interpretation. For example, the way dimensions are displayed or the orientation of a drawing might vary depending on the culture.
* Lack of verbal communication: Drafting primarily relies on visual representation and symbols. Without accompanying verbal explanations, it can be difficult to convey complex ideas or nuances effectively.
While drafting serves as a valuable tool for communication within engineering and design fields, it is not a truly universal language. It requires a shared understanding of conventions and technical vocabulary to be effectively understood.