Before revision:  In a nutshell, partially ordered relation is introduced to the basic components of each layer in the model , namely neurons in dense layers and channels in convolutional layers . Specifically, if one component participates in the forward pass , then all of its preceding components are also activated.
After revision:  In a nutshell, partially ordered relation is introduced to the basic components of each layer in the model is divided into groups of contiguous block of basic components (i.e. neurons in dense layers and channels in convolutional layers . Specifically, if one component participates in the forward pass , then all of its preceding components are also activated.