it is crucial that user centricity is extended to third parties beyond citizens. Governments has do offer data and services for reuse and integration by third parties, notably through APIs. So other service providers should be considered users too

To me, this sounds like we should convince users with rational facts to use our digital services. If people are not familiar in using ditial services, facts and figures will not help them. More attention to feelings and feirs are more important to address than telling about reduced costs.

agree with Zoé: service design principles inlcude investigating the gains and pains in terms of values and feelings. this is where the wins are to be found.