The three fundamental levels of organization are structure, system, and hierarchy. Structures reflect the distinction of separate parts of the whole, as well as their interconnection; this is the static picture taking the elements and links of the whole simultaneously. The dynamic aspect of any distinctions is represented by the systemic view, which represents possible transformations of one structure into another. When structures form within systems, and systems become elements of a structure, we obtain an instance of hierarchy, which puts the stress on structural and functional stratification reflecting the directedness of any changes (development).
Considering logic as a whole, one can certainly discover its structural, systemic and hierarchical aspects. Due to self-conformity of any hierarchy, every part of logic will manifest specific structures, systems and hierarchies. The logical aspect of any human activity is thus combining its logical structure (the fundamental interdependencies between the different aspects of the activity), its logical system (the way one stage of activity comes after another), and its logical hierarchy (acquired skills and the directions of their development). Different cultures accentuate different kinds of logic, and there may be practical tasks requiring the domination of the structural, systemic or hierarchical view. In real life, people usually notice the dominating level of logic, and they may be unaware of the related aspects. However, all the three levels of organization must be present for an activity to be successful.
When logic itself grows into an activity, it develops the same three levels, though different kinds of logic manifest them differently. Typically, there are some logical structures (logical forms) related to each other according to a number of rules or procedures (a logical system). The application of logical rules is regulated by social tradition (logical principles), which determines the possible variations of the logical system.
On the other side, any human activity normally presents itself in a definite hierarchical position, necessarily containing all the other aspects in a hidden way, as the lower levels of hierarchy. For each position of hierarchy, the logic of that activity must come in a specific position too; different logical conversions will reveal structural, systemic and hierarchical logic in the narrow sense of the word, as servicing the structural, systemic and hierarchical aspects of activity correspondingly.