1. A system for managing advisories for complex model nodes comprising: a complex model configured to graphically represent a user-defined system as a plurality of nodes and relationships; a graphical modeling application configured to support execution of a plurality of operations upon the complex model, wherein said graphical modeling application stores data defining graphical characteristics of the complex model as a notation model and stores data defining semantic characteristics of the complex model as a semantic model, wherein the notation model and the semantic model are stored in a storage medium as separate data entities; and an advisory manager configured to aggregate notifications and potential resolutions for the plurality of nodes of the complex model, wherein said notifications and potential resolutions are visually presented within the graphical modeling application.