Business Process Modeling

So far, we have described business processes and sub-processes using plain language and examples. This works well for understanding concepts, but sooner or later we need a more precise way to describe how a process actually behaves.

There is a simple principle behind business process modeling:

Better to see something once than to hear about it a thousand times.

Business process modeling provides a visual representation of how a process works. It allows us to see states, triggers, activities, decisions, and outcomes together in a single view.

In this book, we use simple diagrams based on ideas from the Unified Modeling Language (UML). The goal is not to learn UML itself, but to use a clear and widely understood notation.

A High-Level Process Model

The diagram below shows a high-level model of a dental clinic receptionist’s business process.

Understanding the Diagram

Each shape in the diagram represents one of the business process elements we discussed earlier.

The circle at the top represents the initial state of the business process – the patient has arrived at the dental office.

The small star represents the trigger – the receptionist starts serving the next patient in line.

The large rectangular shape represents the business process itself: servicing a patient’s request for an appointment with a dentist.

The diamond represents a business rule or decision that determines how the process continues.

The donut-shaped symbols represent the final states of the business process – for example, whether an appointment with a dental specialist is scheduled or not.

Why Modeling Matters

A visual model helps us see the structure of a business process at a glance. It makes the flow of work explicit and highlights where decisions are made.

Modeling also creates a shared understanding. Business stakeholders and developers can look at the same diagram and discuss the same process without ambiguity.

In the next chapters, we will gradually move from these visual models toward executable models that can be implemented directly in software.

Table of Content Introduction into Business Process Previous: Business Sub-Process Next: Business Sub-Process Modeling