Supply Chain › Demand Planning
Forecast Models
How a statistical forecast is calculated. Held as data so a planner can add one without a deployment, and so a run can record which it used.
Where to find it
- Module: Supply Chain
- Group: Planning
- Section: Demand Planning
- Screen: Forecast Models
Address in the console: /scm/forecast-models
List · 9 columns · 15 fields on its form · 3 of them required
What the list shows
These are the columns of the list, in the order they are drawn. Any of them can be sorted on, filtered on, hidden, or exported.
| Column | Kind | Field name |
|---|---|---|
| Code | Code | code |
| Name | Text | name |
| Method | Status | method |
| Window | Number | periods |
| Alpha | Number | alpha |
| Season | Number | season_length |
| Suits | Status | suits_pattern |
| Default | Yes or no | is_default |
| Active | Yes or no | is_active |
The form
What is asked for when a record is created here. Required fields are marked; a choice drawn from a configuration list is one an administrator can extend without a release.
| Field | Type | Choices | Notes |
|---|---|---|---|
| Code required | Text | ||
| Name required | Text | ||
| Method required | Choice | Configuration list | |
| Window (periods) | Number | ||
| Alpha (level) | Number | Higher is more responsive and more nervous. 0.3 is the usual starting point. | |
| Beta (trend) | Number | ||
| Gamma (season) | Number | ||
| Season length | Number | ||
| Damp the trend | Yes or no | ||
| Suits demand that is | Choice | Configuration list | A method chosen for the wrong shape of demand is the commonest reason a forecast is useless. Croston exists for intermittent demand; exponential smoothing is hopeless at it. |
| Outliers | Choice | none, clip, winsorize, exclude, flag | |
| Outlier threshold (sigma) | Number | ||
| Description | Long text | ||
| Default | Yes or no | ||
| Active | Yes or no |
The rules that apply here
Everything on this screen obeys the platform rules rather than rules of its own. The ones worth knowing before you use it:
- Narrowing a list — search, conditions, sort, totals, export and saved views.
- What may be changed — the five grounds a record may not be edited on.
- Companies and business units — what the switcher above this list is doing to it.
- Creating a record — required fields, where choices come from, and how the number is allocated.
- Importing a spreadsheet — this screen accepts one, and it runs through the same rules as typing.