Actors are autonomous, intentional, social & rational; their actions are not defined by system specifications.
Human actors have relationships with others in their network and exchange tangible & intangible goods/value.
Static & Dynamic modeling framework fall short of capturing these dependencies and rationale of the social actors.
Social Modeling can compliment Static & Dynamic Modeling and prepare your systems to be social from the ground up.
This deck aims at piquing your interest and take a look at social modeling and a few other concepts.