Use this tool to analyze the current demand and supply situation based on production order BOM information in your current ROB-EX Scheduler plan.

This tool can provide additional insight in your multi-level BOM production.

To startup this tool, right click an operation in the Gantt chart belonging to an order which either produces or consumes a semi-finished or finished product. Then select the option “Materials->Analyze dependencies->Forward/Backward”.

The full BOM analysis is carried out and the result is shown in a tree-type table, allowing you to drill down into different demand/supply paths, that can be taken. Each row in the analysis result is a supply/demand pair. I.e. a production order supplying and a production order consuming a certain material.

Click the top right settings button, to change analysis parameters.

  • The type of material to analyze for demand/supply relation ship
  • Days forward/backward are the number of days to search within, from respectively the supply or demand date in question. Make this number smaller to limit possible solutions. A number of 2 forward days, means that on a forward search, the demand must be found from within a 2 day window of the supply.

Columns explained

Several different columns provide information about a given row. Let’s explain some of these columns:

Supplied by: The production order no. of the supplying order
Used in: The production order no. of the consuming order
Slack: the number of days between when the supplying operation ends and when the demanding operation starts.
Slack sum: the lowest slack sum from the current tree level, recursing down into its children. If the sum is negative you know it is not a viable solution, unless some of the involved orders are rescheduled.
Inventory including demand: The net inventory level of the specified material, after the amount demanded has been deducted. If this is negative, you know this may not be a viable supply chain, as the demand, with the current schedule, is not being met.

Example use cases

Determine semi-components/SKU’s affected by a delay in earlier levels of the BOM
Find one operation on the order which is going to be delayed. Right click the operation in the Gantt chart. Then select the option “Materials->Analyze dependencies->Forward”. The nearest orders demanding the produced (supplied) material will now be shown. If more than a single order is found, analyze inventory columns, if the demand will be supplied even without the supply from the delayed order.

Discover which production orders are supplying a given semi-component/SKU
Find the semi-component production order in question. Right click any of the orders operations in the Gantt chart. Then select the option “Materials->Analyze dependencies->Backward”. The nearest orders supplying the semi-component order will now be shown. If more than a single order is found, analyze inventory columns, if the demand of the semi will be supplied, even without the supply from any of the previous orders.


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