Is IDEA StatiCa Connection a FEM solution like Abaqus or ANSYS?
No, it is not. The scope of IDEA StatiCa Connection is to provide the engineer the tool that allows to safely CHECK any type of connections according to the codes, by running FEM analysis in the background and performing the code checks based on the internal forces obtained by the FEM solver (see more on that at "Do I have to be a FEM expert to use IDEA StatiCa Steel?").
IDEA StatiCa Connection focuses on the actual checking (and not the analysis) providing the engineer the possibility to overcome the limitations of the current Component method, on which all of the other existing connection software are based. It also provides a simple passed/failed status for all elements, which is something the general FEM tools simply do not have.