Door alarm Karnaugh map

A security-system student can use this map to inspect the Boolean conditions that activate a door alarm. The cells are ordered in Gray code, so touching horizontal or vertical cells represent minterms that can be combined. The centre rows produce a wide grouping, while the additional ones above and below may require a second grouping. Keep any don’t-care states separate from asserted ones in the prompt, since they may be used for grouping but do not mean the alarm must activate. Before sharing it, compare the chart with the source table and make the scope explicit. A clear date range, population and unit help another reader interpret the pattern correctly and decide whether follow-up analysis is needed.