Re: Cl. 4.2.2 - Quality Manual includes a description of the interaction between the
ISO/TC 176/SC 2/N 544R3, 5.1.4 ISO 9000 Introduction and Support Package:
Guidance on the Concept and Use of the Process Approach for management systems (October 2008):
*"Methods and tools such as block diagrams, matrix and flowcharts can be used to support the development of process sequences and their interactions."
Block diagrams are useful, as they help to illustrate processes at a manageable level. In a contract manufacturing organization, these blocks might be, appearing in general order of sequence: Sales, Purchasing, Receiving, Manufacturing, and Shipping. Of course, these are primary or realization processes. These processes are sequential. Support processes might be represented also as blocks, but these are not sequential processes, they are parallel processes. So, they might be depicted in a variety of ways, but the best ways show how they relate to the primary processes somehow. (Support processes in a contract manufacturing organization typically include: Document and Record Control, Calibration, Training, Internal Audits, Corrective and Preventive Action, and Management Review.)
A block diagram is not required, however. In fact, the above description could be modified slightly to BE the language that adequately describes the sequence and interaction of QMS processes in your quality manual.
The first attached diagram is kind of a busy example, but it says a lot about sequence and interaction of QMS processes. The second one is much simpler.