Social Life cycle analysis would follow the same theoretical basis as environmental LCA at the difference that its object would not be elementary flow but relations.
From the start it takes space and time attributes in account.
Because of those two major aspects, the team of Bernard Mazjin concluded that it was not possible to account for social aspects through a LCA. They proposed instead to use value chain analysis in parallel to the construction of the process tree.
Exchange between an elementary process and the ecosphere
Do not have an economical value but represent a social or environmental cost
Input drawn from the ecosphere
petroleum, tree, mineral, sun shine, territory
Output rejected from the ecosphere
Air emissions, water, In the ground, solid waste, radiation
Social life cycle analysis: Relations system
Representation of the different relations linking the different value chain stakeholders, even if the relations are not illustrated in the process tree.
Those relations are linked to space and time.
Basis: Value Chain analysis and the Stakeholders approach
Value chain analysis is very effective in tracing product flows,showing the value adding stages, identifying key actors and the relationships with other actors in the chain. It is actor oriented.
Often, however, these actors operate within certain rules that are set by others. Trade rules and standards are obvious examples. Value chain analysis needs to be complemented with information on these rules. Providing information on the trade rules that apply in distant countries is widely seen as an important function of government.
Getting to know the blockages and opportunities that arise throughout the chain.
Source: Hubert Schmitz, Institute of Development Studies
University of Sussex, England
Assess the needs: Goal and scope definition of the study
Use of the tool :goals and objectives can be similar
The use of the tool is not limited to the diminution of impacts but also aim to improve a given situation X, « Know better the issues faced by a company » (example : use of rare timber in a product, performance improvement.
Value Chain analysis: relations system linked to the product system, identification of geographical zone where the activities are situated.
Improvement or comparison study.
Setting Boundary.
The hammer case
Conclusion
Recipe based on existing ingredients.
In line with actual standards, processes and guidelines.
Respect the LCA framework.
Relevant.
Collaboration between different expertise (engineering, design, management, socio-economy and social science)