What characterizes a partitioned tier definition in utility networks?

A partitioned tier definition in utility networks is characterized by the fact that features exist independently within one specific tier. This concept is essential in managing the complexity of utility networks, as it allows for clear separation and organization of features based on their function or type within the network.

When features are placed in a partitioned tier, they do not overlap with those in other tiers, which helps in defining clear hierarchies or classifications. This independence ensures that the functions and properties of one tier do not interfere with another. For instance, in a utility network, it might be useful to separate electrical and water utility features, managing each within their designated tiers to streamline operations and analysis.

The other options suggest relationships or interactions between features that do not apply in a partitioned tier context. Since features existing in multiple tiers simultaneously or being dependent on each other would imply interconnectivity and overlap, this contradicts the partitioned nature of the defined tiers. Likewise, the stipulation that all features must be bidirectional relates to flow systems rather than the independence characteristic of a partitioned tier structure.