vault backup: 2026-02-04 17:41:43

2026-02-04.md

@@ -89,3 +89,75 @@ incentivize problematic (hare-hunting) behavior.
 Has such behavior been observed,
 or has chief strategy been organization-aligned
 in spite of the incentive?
+
+## 2025-02-04
+
+### T-Shirt Sizing
+
+"T-shirt sizing" or "T-shirt size estimation"
+is a method of project estimation
+characterized by the use of T-shirt sizes
+representing project scale buckets.
+
+> [!example]
+> * **XS (1-2 days):** Simple UI changes or minor bug fixes
+> 
+>   Example: "Update button color on checkout page"
+>
+> * **S (2-3 days):** Feature enhancements with minimal complexity
+> 
+>   Example: "Add product sorting by price"
+>
+> * **M (5-7 days):** Features requiring moderate integration
+>
+>   Example: "Implement basic search filters"
+>
+> * **L (8-10 days):** Complex features affecting multiple components
+> 
+>   Example: "Create shopping cart functionality"
+>
+> * **XL (2+ weeks):** Major features requiring breaking down
+> 
+>   Example: "Implement payment gateway integration"
+>
+> --- [T-Shirt Sizing in Agile --- Project Management Pathways](https://www.projectmanagementpathways.com/project-management-articles/tshirt-sizing-in-agile-projects)
+
+The buckets chosen should be wide enough
+that scale can be confidently estimated
+after minimal investigation.
+
+## 2025-02-04 13:42
+
+[[fire-alarm-takeoff]]
+
+> [!quote] Art Baldwin 2026-02-04 (pp.)
+> Fire, smoke, and combination fire/smoke dampers
+> may require 120V power, and thus electrical takeoff,
+> or only 24V, in which case mechanical will own the scope.
+> Assuming 120V is a budget-conservative estimating convenience,
+> which is generally considered acceptable
+> in lieu of determining specified requirements,
+> but further investigation may be expected
+> if more than a few per floor are shown.
+
+## 2025-02-04 17:02
+
+While observing takeoff for
+[[electrical-takeoff#Unit Condensing Units|unit condensing units]],
+the project engineer expressed confusion
+at the process of calculating average horizontal length,
+expressing that it was more complicated than they expected
+considering takeoff procedure for similar processes.
+The PE asked why we would not simply use the maximum
+so that we would not risk having too little overall.
+
+Their expectation surprised me,
+since it is intuitive to me
+that there must be some limit to the logic of "covering it"
+since it is always within our power to add contingency,
+and especially because, if anything,
+I feel that our procedures tend towards
+the upper end of reasonable ECI.
+(see [[value-of-information.jpg]])
+
+My response was not well formulated.