In order to ensure there is clear agreement between the client and the research provider and that both parties adhere to the requirements of the Code, it is strongly recommended that the points discussed in this Guideline are covered in the research proposal and a separate written contract or standard terms of business. This Guideline is not, however, intended to regulate the details of the business relationships between the researcher and the client. In most cases the contract will not be between the researcher and client as individuals but between their respective organisations. The Guideline should be read in conjunction with the ICC/ESOMAR International Code on Market and Social Research, the Notes on How to Apply the ICC/ESOMAR International Code and other guideline documents issued by ESOMAR including the Guideline on How to Commission Research. The Guideline is also consistent with the ISO 20252 international quality standard which covers the same topics.