These look like three headings of a table or of a listing.

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Cost structure

Cost structure refers to the types and relative proportions of fixed and variable costs that a business incurs. The concept can be defined in smaller units, such as by product, service, product line, customer, division, or geographic region. Cost structure is used as a tool to determine prices, if you are using a cost-based pricing strategy, as well as to highlight areas in which costs might potentially be reduced or at least subjected to better control. Thus, the cost structure concept is a management accounting concept; it has no applicability to financial accounting.

To define a cost structure, you need to define every cost incurred in relation to a cost object. The following bullet points highlight key elements of the cost structures of various cost objects:

Product cost structure

Fixed costs. Direct labor, manufacturing overhead

Variable costs. Direct materials, commissions, production supplies, piece rate wages

Service cost structure

Fixed costs. Administrative overhead

Variable costs. Staff wages, bonuses, payroll taxes, travel and entertainment

Product line cost structure

Fixed costs. Administrative overhead, manufacturing overhead, direct labor

Variable costs. Direct materials, commissions, production supplies

Customer cost structure

Fixed costs. Administrative overhead for customer service, warranty claims

Variable costs. Costs of products and services sold to the customer, product returns, credits taken, early payment discounts taken
https://www.accountingtools.com/articles/what-is-cost-struct...

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Analiza struktury kosztów – pozwala poznać skład kosztów i opiera się ... tj. koszty podstawowej działalności operacyjnej (w układzie rodzajowym lub ... przeprowadzenie analizy kosztów jednostkowych, jak i kosztów całkowitych produkcji.

https://pl.wikipedia.org/wiki/Analiza_struktury_kosztów