"Shall" and "should" are two words commonly used in English, especially in technical documents, standards, guidelines, and legal contexts, to express different levels of obligation, requirement, or recommendation. While they are often used interchangeably, they have distinct meanings that can convey varying degrees of necessity or preference. Here's how they are typically used:
Shall:
Example: "All employees shall complete the safety training before starting their work."
Should:
Example: "Employees should arrive at the meeting on time to ensure a productive discussion."
In technical and formal writing, the distinction between "shall" and "should" is often maintained to provide clear guidance. However, in everyday conversation, the two words are sometimes used more loosely and might be interchangeable to express a range of meanings.
It's important to note that the interpretation of "shall" and "should" can sometimes vary based on the context, industry standards, and the specific guidelines or documents in which they are used. When reading technical documents, contracts, or legal texts, paying attention to the usage of "shall" and "should" can help you understand the level of obligation or recommendation being conveyed.