A custom requirement needs a business explanation.
The strongest development brief explains what a user needs to achieve, why the current process falls short and which conditions make the requirement distinctive. “Add a button” describes an interface. “Allow an authorized colleague to correct this exception without re-entering the order” describes a useful outcome.
We compare the available configuration and application options before defining the build. A controlled correction to an approved order, for example, may need eligibility rules, a reason for the change and protection for transactions already created. Those details determine whether a workflow is sufficient or code is justified.
Design the whole behavior.
Rules and exceptions
Define eligibility, approvals, record states and what should happen when required information is missing. Include the cases users handle manually today.
Access and accountability
Identify who can view, initiate or approve an action. Preserve an appropriate record of important changes and avoid granting broad access merely to make a feature work.
Dependencies and performance
Review related scripts, workflows, searches and integrations. Consider volume, execution timing and account limits so the extension fits the wider environment.
Build something the next team can understand.
- 01
Specify the outcome
Capture representative scenarios, acceptance criteria and constraints. Make the scope of configuration, code and connected systems explicit.
- 02
Demonstrate the interaction
Review the proposed workflow and interface before final implementation. Use a prototype where it can resolve uncertainty about the user’s task.
- 03
Implement and test
Develop the agreed behavior and test permissions, errors and downstream effects. Keep changes versioned and separate development activity from controlled production release.
- 04
Hand over the responsibility
Document the design, deployment steps and operating guidance. Identify who maintains the extension and which changes require regression testing.
The extension needs to survive the next change.
A script that sets a delivery date may also affect saved searches, customer messages and a warehouse integration. The handover needs to explain those dependencies, the business rule and a small set of regression tests. Source code on its own does not tell the next maintainer why the behaviour exists.
For an existing customization, we first review available source, deployment history and connected processes. That establishes whether a contained change is sensible or whether the surrounding design needs attention. The assessment can be scoped before committing to a repair.