Answer.

Background:

At the early stages of business process automation, it often became clear that the client does not fully understand or misses important business rules that are not formally documented. The absence of clear documentation of such rules leads to logical errors, unpredictable situations, and disputes between the business and IT.

Problem:

Hidden or implicit business rules are difficult to identify: only experienced employees know them, they may only be documented on paper, or not documented at all. This increases the risks of bugs and conflicts, complicates testing, and product implementation.

Solution:

System analysts apply:

• Interviews with key users and experts
• Analysis of incidents and non-standard situations
• Study of regulations, related processes, message archives, and correspondence
• Through case modeling and the creation of BPMN/UML diagrams, they identify gaps

After collecting the rules, the analyst formalizes them using business rule templates, decision matrices, state diagrams, and conditions. Documentation is continuously updated as requirements change.

Key features:

• Active involvement of experts for validation of identified rules
• Use of template formats for descriptions (e.g., Decision Table)
• Coordination and approval of all business rules with the client

Tricky Questions.

Can it be assumed that all rules discussed by the client at the outset are exhaustive?

No, often part of the important information is hidden or considered self-evident. In-depth analysis and further elaboration are required.

Should rules known only to specific employees always be taken into account in the project?

No, only if these rules are approved and sanctioned by the business side and do not contradict strategic goals. Otherwise, this may become a source of contradictions.

Is it enough to simply document a business rule in technical documentation?

No, it also needs to be validated with experts, exceptions need to be described, formulations agreed upon, and integrated into testing documentation.

Common Mistakes and Anti-Patterns

• Missed or misunderstood rules lead to rework
• Overly technical descriptions of business rules without relating to user scenarios
• Lack of approval of documentation by the business client

Real Life Example

Negative Case: The analyst recorded the business rules from the customer’s words without clarifying questions and feedback from expert users. In production, they encountered unaccounted exceptions (e.g., special payment cases). Pros:

• Quick preparation of analytical documentation Cons:
• A large number of bugs, urgent rework

Positive Case: The analyst held sessions with expert users, used decision tables for all cases, and synchronized the final formulations with several stakeholders. Pros:

• Comprehensive coverage of scenarios
• Minimization of conflicts during implementation Cons:
• High time costs for preparation and coordination