A method of producing a representation of a multimedia scene, this method comprising a data-processing step processing data of said scene to produce a scene graph representing said scene, the scene graph (GS) comprising a set of nodes (vertices) (S) and relations (E) which associate the nodes with one another, these relations using parameters (Π), this method comprising: - an identification step (S22) identifying at least one sub-graph of said scene graph, said sub-graph being destined to undergo a subsequent coding process susceptible of varying as a function of the configuration of use of the scene graph, the configuration of use of the scene graph defining a set of constraints (ξ(t)) comprising at least one use parameter selected in the group consisting of: at least one parameter indicating a capability of a terminal that will reconstitute the scene, at least one parameter indicating a property of a transmission network that will transmit the scene graph to said terminal, and at least one parameter of a user profile of the user of said terminal, - a step (S10) during which there is added, to said scene graph, identification data, of said unitary sub-graph, configured to indicate that said unitary sub-graph is liable to be subject to subsequent adaptation, and - a step (S20) during which strategy data defining at least one variable coding strategy of the sub-graph identified by the identification data is added to said graph, said at least one strategy defining how said subsequent variable coding process varies as a function of the actual configuration of use; characterized in that : the identification step (S22/S30) identifies a sub-graph defined in the form of a function φ : S ↦ S which identifies a sub-set of S, the restriction of E to this sub-set, as well as a sub-set of parameters Π| (E|φ(S)),φ(S) of the initial set Π, and which, thus, is a unitary and general representation, independent of the various actual configurations which may be encountered during processing of the scene. - an identification step (S22) identifying at least one sub-graph of said scene graph, said sub-graph being destined to undergo a subsequent coding process susceptible of varying as a function of the configuration of use of the scene graph, the configuration of use of the scene graph defining a set of constraints (ξ(t)) comprising at least one use parameter selected in the group consisting of: at least one parameter indicating a capability of a terminal that will reconstitute the scene, at least one parameter indicating a property of a transmission network that will transmit the scene graph to said terminal, and at least one parameter of a user profile of the user of said terminal, - a step (S10) during which there is added, to said scene graph, identification data, of said unitary sub-graph, configured to indicate that said unitary sub-graph is liable to be subject to subsequent adaptation, and - a step (S20) during which strategy data defining at least one variable coding strategy of the sub-graph identified by the identification data is added to said graph, said at least one strategy defining how said subsequent variable coding process varies as a function of the actual configuration of use; <EOS>