Detection and correction of non-conformities and inconsistencies, assigning confidence levels to different quality standards and survey campaigns.
Collection Validation
Workflow Review
Design of the flow of data acquisition, management, quality assurance and control (QAQC) activities, with review and adaptation of processes
Governance
Identification of the level of compliance with international practices and a plan to achieve excellence in data quality, with definition of governance and prioritization of actions
GDQM - GeoData Quality Management
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Governance
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Collection Validation
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Revision
Workflow
Defined by Cuchierato (2022) , GDQM is the methodology for assessing the quality of geological data from GeoAnsata , aligned with standardized international practices for declaring mineral resources and reserves , applied to the certification of mining projects and operations and to demonstrating the credibility of technical information .
Integrates technical levels : data science, geology, mining engineering and ESG and non-technical levels : (transparency and compliance, CRIRSCO and @SX standards of all stock exchanges, regulatory requirements, business rules and corporate governance).
Applies objective and systematic criteria to evaluate:
Technical assurance governance;
Data traceability and integrity;
Auditability and reliability of geological models and resource estimation;
Compliance with international standards.
VALIDATION OF THE COLLECTION
DATABASE
•Exploratory analysis
•Consistency testing
•Quality (parameter) assessment
•Assignment of confidence levels (scorecard)
•Data reliability map
MATERIALITY | CUSTODY
PHYSICAL
•Testimony
•Sample | reservations
•Controls
•Frames
•Certificate | Log
DIGITAL
•Certificate | Log
•Shed
•Photos
•Multispectral data
•Evidence in general
WORKFLOW REVIEW
•Process optimization
•Survey | Recovery
•Data acquisition
•Sampling | QAQC
•Preparation and Analysis
•Density
•QAQC
•Analytical QAQC Diagnosis
•Management
•Geological QAQC
•Sounding area
•Topography | Survey
•Density
•Logging
•Twin holes
•GeoData
•DATAHUB | Management
•(Re)structuring of the database
•Materiality
•Management
•Implantation
GOVERNANCE
•GapNexus
•Construction of the action plan
•Verification of use and systems integration
•Mining Assessment | International Standards
•PROs Standardization | SOP