The part of the sentence "according to their usage" is correct and can be used in written English.
This phrase is usually used when someone is describing the rules or customs of a particular group of people. For example, "Different cultures have different customs surrounding the holidays, according to their usage."
In 1995 Bombardier established Business JetSolutions with a U.S. partner to manage Flexjet, a fractional ownership program for business jets in which customers purchase shares in an aircraft according to their usage requirements.
Consumers choose a favorable one from the menu according to their usage behaviors.
They can also indicate which species should be prioritized for replanting according to their usage needs and they understand the importance of conserving riparian vegetation.
Usage significance is measured according to Component Rank, a well-established metric in the literature, which ranks software artifacts according to their usage significance.
The authors have approached post graduating students as they are the frequent users of the chosen products under study and would identify the features according to their usage.
Using HGT agent, one can specify the name of the donor and recipient species according to their usage.
As elsewhere in the house their usage frequently changed according to the requirements of the mansion's occupants, and room names therefore often changed according to their use and decoration.
The UKF and BinoGMF results are located according to their time usage compared to the time usage of PFs.
For each activity, we mine the web to extract the most relevant objects according to their normalized usage frequency.
The active processes in the system are separated in a number of "packs" according to their RAM usage.
An ABC analysis is a method which ranks drugs according to their annual usage (unit cost times annual consumption).
