Operational Requirements

Physical

This requirement specifies the physical environment in which the system will operate, ensuring that the product is fit to be used in its intended environment.

The physical environment includes:

• Natural environment (weather, climate, ocean conditions, terrain, vegetation, space conditions);Combat environment (dust, fog, nuclear-chemical-biological);Threat environment (effects of existing and potential threat systems to include electronic warfare and communications interception;Operations environment (thermal, shock, vibration, power variations);Transportation and storage environment;Maintenance environment;Test environments;Manufacturing environments (critical process conditions, clean room, stress);

• Other environments (e.g., software engineering environment, electromagnetic) related to system utilisation.

Unusual conditions lead to special requirements being highighted, such as, the product will be used in dim light.

Technological

Hardware and other devices that will make up the new systems operating environment will be specified here.

It is important to do this as soon as possible so that hardware required is purchased, installed and tested in good time and doesn't hold up product development.

Extra thought should be given if the product is to be embedded in another device.

Integrational

This will be a description of the other applications that the new product must interface with. It is important to discover these dependencies early and so avoid a lot of project rework.

For example, the product must be able to interface with any HTML browser.

Supportability

This specifies the level of support that the new product will require. This may involve a help desk or help that is built into the product itself. Either way, the support aspect must be adequately specified.