A 'gesprekscyclus' means an 'interview cycle', or a 'round of discussions', as mentioned by Alexander.
Bracha has said that 'The text in general describes how the particular consultancy firm can help companies organize their competence and performance management.' However, just from the snippet ' Invoeren van een *gesprekscyclus* van plannen, voortgangscontrole en beoordelen', I wouldn't dare to say much more than 'interview cycle', without further context.
Interview cycle doesn't only mean interviews as in job interviews.
See also: 'Performance and Development Interviews / Performance and Development Talks' (
http://medewerkers.leidenuniv.nl/p-en-o/info/p-d-interview.h... )
I think Kitty is probably also right. I think another option would be: 'Performance and Development Interviews' / 'Performance and Development Talks' or performance and development cycle.