Scope and Applicability

The requirements are expressed in terms of an assumed bi-partite contractual arrangement between the “Acquirer", (the MOD), and a "Solution Provider”, (typically the Defence industry), for the supply of a "Solution". The solution referred to in the requirements may be that covered in a particular contract, or may form part of a larger overall solution, either existing or provided by others.

The requirements apply where the solution to be supplied is to be handled, transported, used, maintained or otherwise supported by MOD service personnel or MOD civilian employees.

The requirements apply to the acquisition of new, extended, upgraded or updated Defence capability and to any solutions that are proposed or supplied.

The generic requirements in Def Stan 00-251 apply in conjunction with any Service-specific humanrelated requirements that may be specified.

The generic requirements in Def Stan 00-251 apply in addition to any human-related requirements that arise from specific contract functional requirements.

The HF User Requirements (HFURs) and HF System Requirements (HFSRs) in this document are generic candidate requirements that may be used in their entirety, tailored, supplemented or replaced by appropriate alternatives depending on the project needs.