Method — Software Product Liability

Definition, scope boundary, and structural model.

Definition

Software Product Liability refers to the application of product-liability rules to harm attributed to defective software where the conditions required by the applicable legal framework are satisfied.

The definition does not establish that software is universally a product or that software defectiveness alone establishes product liability.

Model Classification

The software product liability model is structured as a conditional legal structure.

It represents legally relevant qualification dimensions without imposing a universal sequence, liability standard, or jurisdiction-specific rule set.

Scope Boundary

Included

Application of product-liability rules to software
Qualification of software within an applicable product-liability framework
Legally relevant software defectiveness
Harm attributed to allegedly defective software
Causal requirements relevant to product liability
Attribution of liability under the applicable product-liability framework
Jurisdiction-dependent conditions governing these relationships

Excluded

Software liability generally
Contractual liability as such
Warranty liability as such
Professional negligence
General tort liability unrelated to product liability
Cybersecurity liability as an independent category
Data-protection liability
AI liability generally
Product-safety regulation as such
Software regulation generally
Universal classification of software as a product
Universal strict or no-fault liability for software
Universal defect categories
Universal rules concerning damages, causation, burden of proof, defenses, or liable parties

Conditional Legal Structure

Product Qualification

Whether the software falls within the product scope of the applicable product-liability framework.

Defect Qualification

Whether the software satisfies the applicable legal criteria for defectiveness.

Harm and Causal Relation

Whether legally relevant harm exists and the required causal relation between the alleged defect and that harm is established.

Liability Attribution

Whether the applicable framework attributes liability to a person or entity in relation to the defective software.

Software-related harm falls within product liability only where the conditions required by the applicable legal framework are satisfied.

Transferability

The conditional legal structure is transferable across jurisdictions in which product-liability rules may apply to software.

The classification of software, applicable defect criteria, legally relevant harm, causal requirements, attribution of liability, defenses, and other liability conditions remain dependent on the applicable legal framework.