*The file ObjectDescription describes the objects contained in the AGATA Construction DataBase. Each object is defined by its name (field Object), its type (field type), its version (field version), a more detailed description of its name (field description), of its type (field type_description), of its version (field version_description). The following field details if this object is a cable: this field IsACable contains T if it's a cable, F otherwise. Then the field barcode describes the barcode of such an object. The X has to be replaced by a number (for an ATC: ATCXX stands for ATC01 for instance). You can also deduct the policy of barcodes of AGATA Construction DB. Special barcodes are used for the transfers purpose. At last, you can find the field Note which gives some details on the object. A second sheet in the xls file gives details on the policy of barcodes for the cables purpose.*The file ObjectAssemblyDescription describes the assemblies between the objects in the AGATA Construction DB. Those assemblies define a tree structure: one component can be assembled in another one and so on. This file describes those relations: for each line, the 3 first fields describe the parent object (fields object,type, version), the 3 following the son object (fields sub_object, sub_type, sub_version), the field sub_object_number contains the maximum number of this son object in its parent, and at last the field description which adds comments on the relation.