This International standard gives guidance on the application of quality management in projects. It is applicable to projects of varying complexity, small or large, of short or long duration, in different environments, and irrespective of the kind of product or process involved. This can necessitate some tailoring of the guidance to suit a particular project. This International Standard is not a guide to project management itself. Guidance on quality in project management processes is discused in this International Standard. Guidance on quality in a project's productrelated processes, and on the "process approach", is covered in ISO 9004. Since this International Standard is a guidance document, it is not intended to bed used for certification/registration purpose.