Entity Metadata Record Contents

Each dataset requires at least one Entity Metadata Record (EMDR). The entity records may reference two or three EMDRs.

The CCOGIF writer requires EMDR metadata features to define meaningful contents for the EMDRs. If no EMDR metadata features are given to the writer, a single EMDR will be written to the output CCOGIF file with all attributes given default values from the table below. The default attribute values are also used to fill in any values of attributes not present in the EMDR metadata features passed in.

Attribute Name	Description
ccogif_meta_data_id	Constant: 0
ccogif_data_gen_agncy	Empty string (“ ”)
ccogif_capture_method	Empty string (“ ”)
ccogif_col_instrmt	Empty string (“ ”)
ccogif_src_mat_type	Empty string (“ ”)
ccogif_src_mat_scale	Empty string (“ ”)
ccogif_src_mat_date	Current date
ccogif_fld_comp_date	Current date
ccogif_data_captr_date	Current date
ccogif_src_mat_spec	Empty string (“ ”)
ccogif_feat_code_spec	Empty string (“ ”)
ccogif_data_struc_spec	Empty string (“ ”)
ccogif_qual_ctrl_spec	Empty string (“ ”)
ccogif_trans_gen_spec	Empty string (“ ”)
ccogif_field_cpltn_spec	Empty string (“ ”)
ccogif_acc_det_proc_spec	Empty string (“ ”)
ccogif_data_resolution	Empty string (“ ”)
ccogif_x_accuracy, ccogif_y_accuracy, ccogif_z_accuracy	Constant: 0

The ccogif_data_coll_md_ptr and ccogif_data_rev_md_ptr attributes on all output entity features must be given an explicit value in the mapping file to ensure they are meaningful.