Data analysis &
Data preparation
Structuring, cleaning and analysing internal and external data sources. Combining different datasets and preparing them for further use.
More informationData becomes valuable when it answers your questions.
Heisel Analytics develops data solutions as clearly scoped work packages:
with a defined scope and fixed price.
Structuring, cleaning and analysing internal and external data sources. Combining different datasets and preparing them for further use.
More informationClear dashboards and reports for current KPIs, plus forecasts that make potential future developments visible.
More informationAutomating data processes to reduce manual work and errors. Integrating data sources and building reliable, scalable workflows.
More informationCustom tools and web applications that make data directly usable in day-to-day work and are easily accessible through a browser.
More informationStart with a short description or upload your data. Its content, quality and possible relationships are then explored. You receive a clear assessment by email or in a personal conversation: which answers are possible, what potential the data contains and which next step makes sense.

WEB APP
SailPlot is a browser-based tactics board for sailboat racing. Courses, starting lines, boats and tactical scenarios can be created, adjusted, shared and used for coaching, analysis or briefings.

OPEN SOURCE
HetznerWatch is a lightweight open-source tool that automatically monitors the availability of Hetzner Cloud servers and can send an ntfy notification whenever availability changes.

DATA TOOL
Compare is a browser-based application for comparing text, source code and configuration files. Added, removed and unchanged sections are identified automatically and presented clearly.

PROJECT SUPPORT
Every delivered project includes complete, understandable and durable documentation for both business users and technical teams.
Data projects can quickly become complex and difficult to estimate. Heisel Analytics therefore turns specific questions into clearly defined work packages.
Objective, scope, cost and outcome are agreed from the outset. This creates a focused solution that is implemented transparently, delivered within a predictable timeframe and ready for day-to-day use.
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I am Oliver Heisel. I develop practical data solutions in data science, business intelligence and automation. My aim is to make complex data understandable and turn it into solutions that create tangible value in day-to-day business.
I combine technical expertise with a clear focus on business value: data should do more than produce analyses; it should improve decisions, simplify processes and create genuine transparency.
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