Those areas are mostly being influenced by PSO:

 

For pre-press:

• Colour settings in Photoshop
• When and how to use colour profiles
• Maintenance of data consistency
• Maintenance of basic parameters (such as resolution, colourfulness)
• Creation of PDF/X-3 conform data
• Creation of print simulations (proofs) according to the norm
• Creation of repeatable exposure results during print plate production (CtF/CtP)

For press:

• Alignment condition of the printing machinery
• Selective usage of modern measuring techniques on printing machinery
• Guidance and regulation of one print run within predetermined deviation and fluctuation
• tolerances.