Planual Rules regarding Subsets
1.06-01 Prefix each subset's name with the name of the parent list
| Always prefix subset names with the name of their parent list. Use a standard format such as Parent List Name]: [Subset Description] (for example, P3 Products: Active Products). Adhering to this naming convention improves auditability, particularly when navigating large models with numerous subsets. Engine Applicability: Classic Hyperblock and Polaris |
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1.06-02 Do not use subsets on large lists
Lists and subsets take up space within a model, so if you need multiple subsets of the same list, consider whether they would be better as separate lists. This is especially valid if the lists don't overlap and they're being fed from a Data Hub. For overlapping subsets or if there is a need to “consolidate” the value back to the primary list then subsets are a valid construct for model efficiency.
1.06-03 Avoid single item subsets
If possible, try and avoid single item subsets. If there's a top level in the list, a single item subset will always have two members. Consider using a Boolean flag in a SYS module or a LOOKUP line item against the desired item (to avoid using SELECT).
