The online availability of public data using unstructured documents and non-open file formats is still found in ma-ny government agencies what hampers so-ciety to consume data, as unlocking da-ta from them is not a trivial task di-rected to everyone. This in progress work aims at expanding a previous pro-posal by elaborating an important as-pect of a conceptual software architec-ture which is the collaborative ap-proach in the context of open govern-ment data. The contribution of this work is shown in the form of software requirements that make it possible for users in the open data community be in-volved with the entire data structuring process while government agencies pre-pare themselves to publish open data by default.