Some Terminology about Specifications

Although specification corresponds to Step E, it is considered first, because it is unusual in cryptology and some of the terminology is needed in the following sections. 

The complete interface behaviour of a system is called the service that the system offers. The actors that interact with the system through the access points are called users. 

Some other words have been used less formally so far and maintain that meaning People or persons mean people in the real world. A device is a hardware object in the real world, as in Section 1.4. Participant is used in an unspecific way for people together with their devices, i.e., something that is modeled by parts above and below the interface. A role refers to a user acting in a particular function in this context it means using a particular access point. 

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The safety data sheet (the word material has been dropped in recent terminology) or SDS is specifically aimed at use in the workplace. It should provide comprehensive information about the chemical product that allows employers and workers to obtain concise, relevant, and accurate information that can be put in perspective with regard to the hazards, uses, and risk management of the chemical product in the workplace. The SDS should contain 16 sections. While there were some differences in existing industry recommendations, and requirements of countries, there was widespread agreement on a 16 section SDS that includes the following headings in the order specified ... 

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