The context of ESSGLOBAL is the Semantic Web (or Web of Data)  and Linked Open Data . The Semantic Web has to do with structured metadata (RDF ), data that describes resources. LOD has to do with technologies (turtle , J-SON  and others) that allow this metadata to be connected, building this way an inteligent Web since machines can infer over this data a give answers to complex questions that users can make.
In the end, users or institutions can develop applications over this data...and we can use e.g a smartphone to find a certain information about SSE organisations or activities.
But for all this to work we need to structure the data in a common way, and then to describe it in such a way that it can be interoperable among us and hopefully between us and the world outside our community.
The first step is to understand each other. That was not easy. We needed to find a data model that would be an abstract model of the SSE "reality". We have defined one, we know it is very imperfect. We are open to improve it. We call this data model a Dublin Core Application Profile (DCAP) .
ESSGlobal has though developed a DCAP for the SSE  that structures the data of SSE (organizations, networks, relations, products/services, cost composition of the products) and defines the vocabularies that describe this data model. All but one vocabulry are standards and used by the rest of the world: this way we can be interoperable and be present in the LOD ecosystem. We needed to create a new RDF vocabulry called essglobal since there were parts of the data model that could not be described by the standard existent RDF vocabularies.
Next setp is to "use" the DCAP-SSE. For that we need to program SSE Web Based Information Systems (the web sites with the information on the SSE organizations and its activities), translate the info that is on the these Databases (relational databases....whatever) in datasets of metadata, and make them available on the Web of Data.
Where can we cooperate? TRansformaps could put its data in LOD. And for that could follow the DCAP-SSE model.
Regarding your taxonomies you could have a look in our taxonomies (we call it Vocabulary encoding schemes). You can see here the list (in SKOS) .
 http://maltas.org/essglobal/index.php?title=Arteiros_Aroma_Brasil (http://purl.org/essglobal/website for the home page of the website we are working on)