IT Business Architecture and Business Solution Design
Who I am
JZ IT CONSULTING LIMITED (Company number SC874392), registered at: 214 Union Street, AB10 1TL, Aberdeen, UK, represented by me: Jaroslaw Zelinski. The company was founded in Poland in 2004 and has been registered in Scotland since 2026 (I have been living and working in Scotland since 2020). It has been operating continuously ever since. I have designed numerous bespoke applications and overseen the implementation of many ERP, CRM and document management systems. I specialise in business analysis and in documenting business processes and IT systems.
About Jarosław — Business Analyst, Systems Modeller & Research Contributor
Jarosław is a senior business analyst and systems modeller with deep expertise in MBSE, UML/SysML, BPMN and V‑model methodologies. For more than a decade, he has helped organisations design clear, reliable and scalable system architectures that align tightly with real business processes. His work bridges the gap between operational needs and technical delivery, ensuring that applications are built on solid foundations rather than assumptions.
He has extensive experience supporting companies in regulated and engineering‑driven sectors, where precision, traceability and documentation quality are essential. Jarosław specialises in transforming complex workflows into structured, actionable models that development teams can implement without ambiguity. His approach reduces project risk, shortens delivery timelines and improves long‑term maintainability of systems.
In addition to his consulting work, Jarosław has contributed to academic research in the fields of systems modelling, process optimisation and digital transformation. His publications explore practical applications of modelling techniques in real organisational environments, focusing on how structured methodologies improve system reliability and reduce operational risk. This research background strengthens his ability to deliver solutions that are not only technically sound, but also grounded in proven analytical frameworks.
Beyond modelling and architecture, he provides organisations with practical guidance on process optimisation, documentation standards and the design of scalable digital tools. He is known for his ability to clarify complicated topics, create elegant visual representations of processes and systems, and deliver materials that improve communication between business stakeholders and technical teams.
Jarosław is currently expanding his consulting practice in Scotland, particularly in Aberdeen, supporting SMEs and public‑sector organisations in strengthening their operational efficiency and modernising their digital tools. His goal is to help clients build systems that are not only functional, but strategically aligned with how their business operates and grows.
Models as the subject of research – my papers
Researching activities from 1998. Over 30 articles in popular domain newspapers, a few reviewed scientific papers, and one book (“Business Analysis. Practice of enterprise modelling”, became a bestseller in Poland, “Synthesis of MOF, MDA, PIM, MVC, and BCE Notations and Patterns” printed by IGI Global) and “Digital Documents as Data Carriers and a Method of Data Management Guaranteeing the Unambiguity of the Recorded Information: Ontology-Oriented Data Management and Document Databases“.
I research models as methods . As an independent expert, analyst and designer, successfully (engineering issues: ) implements projects in the field of system analysis of enterprises, designing logic and architecture of information systems, uses standard, formal methods of analysis, which he constantly develops and use in practice.
As part of my scientific work, as an independent expert, analyst, and designer, I successfully implement projects in the field of system analysis of enterprises, designing logic and architecture of information systems, using standard, formal methods of analysis, which I constantly develop and use in practice. I conduct basic research in the field of methods of system modelling analysis.
As a lecturer from 2005-2012, I permanently cooperated with the Information Systems Department of the Maritime University of Gdynia. Since 2014, I’m a lecturer at the Faculty of Information Technology in Management Techniques at the University of Information Technology and Management under the auspices of the Polish Academy of Sciences. The subject of lectures is systems analysis and systems logic design for business, formalised business and systems analysis aimed at optimising the organisation’s work, organisational aspects of business continuity management, and developing requirements for management support software.
Since 2005, I have used Visual Paradigm (VP) CASE software for all purposes in my projects. I use VP for all models and prepare analyses and reports (about 10 years ago, I stopped using MS Office for writing reports and scientific papers). Cooperation with Visual Paradigm as a content expert voluntarily.
(I am not a native English speaker, and this site was developed by me. Thanks for your understanding and patience.)
After work
I’ve been living in Scotland (Aberdeen) for some time. In addition to work, during the day I admire the beauty of this country and its distilleries and spend evenings in pubs. If you want to meet me in Aberdeen, have a look at the folk sessions, I’m most often at the Blue Lamp pub on Mondays and Northern Bar pub on Thursdays.
References
Roles in projects:
- Interim IT Architect
- Senior Business Systems Designer
- Software Engineer
- Business Analyst
- Information Systems Consultant