About the Course
In a world flooded with data, one truth remains: if it’s not clean, it’s not useful. Most organizations are sitting on piles of potentially valuable data, but poor preparation turns it into a liability. From misaligned formats to inaccurate entries, raw data is rarely ready for analysis. What distinguishes confusion from clarity? This can be achieved through the implementation of intelligent and repeatable cleaning processes.
This training takes you from overwhelmed to in control. You’ll learn how to identify common issues, clean data efficiently, and structure datasets that work across tools, reports, and systems. No fluff. You will acquire the necessary tools, workflows, and practical experience to convert raw data into analysis-ready gold. Whether you're managing survey results, operational metrics, or monthly financials, you'll walk away with the confidence to prep and clean data that delivers.
Target Audience
This course is designed for professionals who work with data and need it to be accurate, structured, and ready to use:
- Data analysts cleaning up messy files before analysis
- Researchers managing survey or study data
- NGO staff organizing field or program data
- Public sector teams standardizing service or census data
- Project managers wrangling inputs from multiple teams
- Marketing teams preparing campaign and CRM data
- Finance professionals consolidating reports and spreadsheets
- Operations managers tracking workflow data
- HR professionals analyzing workforce metrics
- Anyone who turns raw data into decisions
Course Objectives
This course helps you clean with confidence so your data works for you, not against you.
By the end of this training, you’ll be able to:
- Identify and correct common data quality issues
- Standardize formats, entries, and data types
- Handle missing, inconsistent, or duplicate values
- Prepare datasets for reporting, dashboards, and analysis
- Validate data through summaries and checks
- Automate repetitive cleaning steps
- Document your cleaning process for clarity and collaboration
- Build workflows that save time and prevent future messes
Local Application and Business Return
How participants can apply the training in local operating conditions, and the return their organisation can plan for.
How participants apply this
Expected ROI
Training Methodology
This is a hands-on, problem-solving course built around real data challenges, not theory.
- Here’s what makes this training practical and effective:
- Walkthroughs of messy datasets
- Practice cleaning using Excel and Python
- Structured exercises for spotting and fixing common issues
- Peer review and feedback sessions
- Case studies from multiple industries
- Templates and checklists for repeatable processes
- Guided documentation and validation techniques
- Optional breakout tracks for advanced tools or sector-specific datasets
Upcoming Sessions
Next available dates worldwide
Certification
Recognized credentials that advance your career
Participants who complete the Data Preparation and Cleaning Training Program earn a Trainingcred Certificate of Achievement, demonstrating professional competence and alignment with global standards in learning and development.
NITA Accredited
Accredited by the National Industrial Training Authority, ensuring programs meet nationally recognized standards of quality and relevance.
CPD Certified
Recognized by the CPD Certification Service, ensuring every program meets internationally benchmarked standards of professional excellence.
Why this course earns its place on your CV
Accredited training, practitioner trainers, and peers on the same career track — the three things real expertise is built on.
Skills Relevance
- Master the art of data cleaning, essential for cutting-edge data science projects.
- Learn techniques to enhance data integrity, boosting analytical accuracy and insights.
- Acquire practical skills in Python and R for real-world data preparation tasks.
Career Advancement
- Position yourself as a data-cleaning expert, crucial for high-stakes decision-making roles.
- Enhance your resume with advanced data manipulation skills, desired by top tech employers.
- Unlock new career opportunities in data science and analytics through specialized training.
Expert Delivery
- Taught by industry leaders with years of experience in big data and analytics.
- Benefit from personalized feedback on real-world case studies and data sets.
- Access to exclusive webinars and Q&A sessions with data science professionals.
Tools and platforms relevant to this field
Examples Greece teams may encounter, and that may be featured in training where they support the confirmed course scope.
These are field-relevant examples, not a promise that every tool will be covered. Exact coverage depends on the confirmed course scope, participant needs, and delivery format.
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Entersoft Business Suite EntersoftA dominant local ERP used for preparing and validating financial data for mandatory myDATA (AADE) electronic reporting.
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Epsilon Smart Epsilon NetWidely used by Greek SMEs to clean and transmit sales data to the Independent Authority for Public Revenue.
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Softone Cloud ERP SoftonePopular for managing data interoperability between Greek business operations and the national digital governance infrastructure.
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QPR ProcessAnalyzer QPR SoftwareUtilized by major Greek financial institutions for data-driven process mining and operational data cleaning.
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Power BI MicrosoftThe primary tool for Greek analytics firms to visualize cleaned datasets for retail and shipping sector reporting.
Real-World Case Studies from Greece
Real organisations putting these methods into practice — what they did, what changed, and the measurable outcome. No hypothetical scenarios.
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Process Mining and Data Preparation for Consumer Loans 2018Piraeus Bank
Piraeus Bank implemented process mining to identify bottlenecks in their consumer loan applications. The project required extensive data preparation to extract and clean event logs from legacy systems, ensuring that timestamps and activity sequences were accurate for analysis.
The bank achieved unprecedented transparency in its loan processes, identifying manual rework areas and reducing processing time by monitoring real-time data deviations.
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National Statistical Quality Framework Implementation 2023Hellenic Statistical Authority (ELSTAT)
ELSTAT established a rigorous data quality policy to improve the reliability of Greek national statistics. This involved cleaning and harmonizing data from diverse administrative sources and implementing the European Statistics Code of Practice to ensure data accuracy and consistency.
Improved the credibility of Greek official statistics and reduced discrepancies in primary data through standardized quality guidelines and certification of the Hellenic Statistical System (ELSS) agencies.
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