Posted by
Si Chen-2 on
Sep 08, 2005; 7:54pm
URL: http://ofbiz.116.s1.nabble.com/OFBiz-Dev-manufacturing-questions-tp165991p165993.html
Hi Jacopo,
My comments are also inline:
Jacopo Cappellato wrote:
> Hi Si,
>
> please see my comments inline:
>
> Si Chen wrote:
>
>> Hi Jacopo,
>>
>> Tried the manufacturing demo again. Everything looked good except a
>> couple of minor things which I wasn't too sure about:
>>
>> 1. Once a production run has been started, clicking on [Declare]
>> takes me to a screen to input information about the routing task.
>> There are these fields:
>> Setup Time
>> Actual Setup Time
>> Add Setup Time
>>
>> Run Time
>> Actual Time
>> Add Task Time
>>
>> Setup Time and Run Time are the estimated values from routing task.
>> The Actual Setup and Run Times do not have input boxes next to them.
>> Add Setup Time and Add Task Time do. But when I input values there,
>> instead of adding them to the Setup Time and Run Time, they become
>> the Actual Setup Time and Actual Run Time.
>>
>> Is this a bug? Or should the labels on the form be changed?
>>
>
> Thanks for bringign this up to my attention: the only times that can
> changed are the actual times... so yes, the label were not clear enough.
> I've changed them to:
>
> Estimated Setup Time
> Actual Setup Time
> Add Actual Setup Time
>
> Estimated Run Time
> Actual Time
> Add Actual Task Time
>
> This is in SVN with rev 5671.
>
> Si, I greatly appreciate this kind of comments because they really
> help me to improve the parts of the system that are not clear.
> So if you see wrong labels, bad names etc... please do not exitate to
> contact me and I'll fix them.
>
Sure. So do "Add ... Time" cause time to be added to actual setup and
run time? Because when I tried it, it became the actual setup and run
time. Is that because they start as zero (or null)?
>> 2. After a production run, the raw material products' QOH and ATP
>> quantities became negative, but an MRP run did not suggest any
>> requirements for them. Should it have? Or is the intent to set up
>> replenishment rules for these products in the catalog manager?
>>
>
> This is a good point: as it is now, the MRP process just searches in
> the future for the product's demand (approved sales orders, production
> runs etc...) and then sees if in warehouse the product's needed qty
> will cause the product to go under the minimum stock level; if this
> will happen, a new requirement is created.
> If I'm not wrong, your situation is different: you have a product
> already under the minimum stock level but no future demand for it (no
> sales orders or production run), so no requirements are created.
> I'm not sure if the MRP should take this situation into account or
> not: however you can have a nice report of the under level products
> from the Facility --> Inventory Items --> View Inventory by Product
> With that report in hand, you can create purchase orders to refill the
> stock levels (but this will never happen when the supply strategy is
> driven by MRP).
>
>
I actually did start a production run. So should a requirement have
been created if the production run created a shortfall?
>> 3. Maybe I've asked this before, but should we set Requirements'
>> quantities to the reorder quantities of the facility? Would that be
>> better? I vaguely remember working on this and thinking there might
>> be some issues with trying to do it that way...
>>
>
> Please, could you give me more details? Do you mean the requirements
> generated by MRP or requirements generated by the 'automatic' methods
> set at product or product store level?
>
In general, let's say an item's warehouse minimum quantity is 5 and
reorder quantity is 50. When the quantity falls below to, say, 3, right
now it seems to generate a requirement for 2 more. Should it generate a
requirement for 50 instead?
I have a strange feeling we've discussed this topic before, so sorry if
I'm repeating myself.
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