In some examples, an object-based attribute may be based at least in part on the value system. For instance, in at least a financial-based value system, an object-based attribute may include one or more line item attributes, one or more line item adjustments, and/or the like. Line item attributes may include a sequence, a line item group, a product code, an item name, an item source (e.g., provider, manufacturer, etc.), a description, a quantity, a mass (e.g., gram, kilogram, etc.), one or more spatial dimensions (e.g., length, width, height, volume, etc.), a unit amount, a unit tax amount, a line amount (e.g., amount of the line item), a line tax amount, and/or the like. Line item adjustments may include an adjustment type (e.g., manufactures discount, a store discount, a return, a payment cash, a payment gift card, payment other, and/or the like), an item, product, or service code, an item description, an item quantity, a unit-item, an item mass (e.g., gram, kilogram, etc.), a unit amount, a unit tax amount, a line amount (e.g., amount of the line item), a line tax amount, and/or the like.