Designing for maintainability: Application logging
Why this deserves attention
Logs should describe business context and decision points, not produce an unstructured stream of debug statements. This becomes more valuable as the platform, team and integration estate grow.
Excessive technical logging costs storage while still failing to explain what happened to a record or process. On 8 December 2025, this archive entry records the principle as a practical design concern rather than a product announcement.
Build for the next owner
Look at application logging through how another team will understand, support and safely change the solution. The objective is not to introduce more process; it is to expose the few decisions that determine reliability, ownership and future change.
Use structured severity, correlation and operation fields, redact sensitive values and define retention by support need. Record the decision close to the solution so that delivery, support and future architecture reviews work from the same intent.
What good looks like
Engineers and operations share an actionable view of application behaviour. The team can describe the expected behaviour, the owner, the evidence of success and the response when reality differs from the design.
A useful next step is to review one live implementation against this principle, identify the largest unowned assumption and turn it into a bounded improvement with a measurable outcome.
Official reference
Salesforce Apex Developer Guide