Bom Bill of Material Eresource

Bill of Materials (BOM)

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An essential and concise guide to

understanding eresource

Release 2.8


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Table of Contents

Bill of Material (BOM) ................................................................................................................................... 5

Definition of Bill of Material (BOM) in eresource: ........................................................................................ 5

Single Level BOM in eresource ERP: ............................................................................................................. 6

Multi level BOM in eresource ERP: ............................................................................................................... 7

Standard BOM : ............................................................................................................................................. 7

Order Based BOM : ....................................................................................................................................... 8

Revision of BOM / Engineering Change Request (ECR) and Engineering Change Note (ECN): .................... 9

The Modular Bill of Materials: .................................................................................................................... 11


Bill of Material (BOM)

The Bill of Materials is considered to be an engineering document that specifies the ingredients or

subordinate components required physically to make each part number or assembly. Or A bill of

materials is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components,

components, parts and the quantities of each needed to manufacture an end product.

In eresource, a Single level Bill of Material comprises only those subordinate components that are

immediately required, not the components of the components.

An indented Bill of Material is a list of components, from the end item all the way down to the raw

materials; it also doesn’t show the components of the components.

The BOM components in eresource support the use of the Bill of Material concept in a wide range of

circumstances where there is a tree structure of associated items. BOM can be generated in the

following forms:

� Material BOM

� Equipment BOM

� Order Based BOM

In each form, the BOM comprises a structured list that specifies what is needed in each of the

components – Name, UOM (Unit of Measurement), Quantity.

Definition of Bill of Material (BOM) in eresource:

Bills of Materials (BOM) are normally accessed according to production or procurement deadlines. The

History Management function allows several types of BOM to be managed simultaneously, and can be

operated according to the needs of the customer.

Single Level Bills of materials and Multi Level Bills of Material can be generated in eresource ERP. For

each manufactured line item on a Work Order, the system provides a bill of materials (BOM) and

routing.

� Single level Bill of Material

� Multi level Bill of Material


Single Level BOM in eresource ERP:

In the single Level bill of materials only those subordinate components can be captured that are

immediately required to manufacture the product.

eresource ERP gives you provision to create Single level Bill of Material which is comprises only those

subordinate components that are immediately required, not components of components.

In the single level BOM master you have provision to plan that how much days will be required to

manufacture a particular BOM. Also you have provision to define what and how much Packing material

will be required for that Item Batch.


Multi level BOM in eresource ERP:

The multiple BOM concept aids the management of a variety of similar BOMs (variant problem).

Common components of similar BOMs are recorded in a 'Reference BOM-M' while components specific

to individual BOMs are recorded in a separate 'Single Level BOM-M'. In this way, the BOM of a given

material consists of a combination of data referring to common and individual components.

Standard BOM :

While making a new standard BOM eresource ERP gives you the provision of copy any standard BOM

from existing BOM or from existing Sales order BOM. You have facility to add any other material or any

other semi finished item in the new BOM you are making. You can also define the No. of days required

to process the batch.


Order Based BOM :

eresource ERP gives you the provision to create a BOM again the sales order of any customer. Again

you can copy BOM from any existing standard BOM or from any previous Sales order BOM. The data of

BOMs is automatically shown against the work orders providing the ability to include configured items

on a WO's BOM.


This gives the stores department to check if the stock of materials is available for a product

manufacturing or batch manufacturing. Once the individual customer order is entered, it specifies how

much components are required, the quantity including wastage and at what level of production the

components will be required.

eresource ERP Bills of Materials are completely integrated into the system and support:

• The procurement of materials at the optimum time (Material Requirement Planning module)

• The placing of production orders (Production Planning and Control Module)

• The issue of goods (Inventory Management Module)

Revision of BOM / Engineering Change Request (ECR) and Engineering Change

Note (ECN):

eresource ERP gives you the provision of Revision of BOM which is called ECR (Engineering Change

Requisition). With the selection of any item this form gives you the provision to zoom in the BOM by the

click on View BOM. You can make any changes on that particular BOM if there is any requisition came

for changes.


The Engineering Change Notice (ECN) module allows you to establish controls and manage the process

of making changes to documents and drawings, parts, Bills of Material (BOMs) and routings, work

orders, and projects. The ECN module allows you to:

• Create an ECN process flow with multiple ECN user groups and notification systems.

• Generate and track ECN tasks and apply electronic signatures for approvals and task completion.

• Track ECN and revision history on all parts, documents, bills of manufacture, work orders, and

projects.

• Maintain an audit trail of changes to the ECN record throughout the change process.


The Modular Bill of Materials:

A key use of bill of materials files is in translating the MPS into subordinate components requirements.

One bill of materials structure or architecture calls for maintaining all end item buildable configurations.

This bill of materials structure is appropriate for the make-to-stock firm, where the <PS id stated in end

items. For each end item, a single-level bill is maintained, which contains those components that

physically go into the item.

End Items

Options

Components

The MPS Hourglass

MPS


In eresource a solution is to establish the MPS at the option or module level. This intent is to

state the MPS in units associated with the ‘waist’ of hourglass. This necessitates that bill of

materials files be structured accordingly; each option or module will be defined fully in the bill if

materials file as a single-level bill of material. If the options are simply buildable subassemblies

as end items; that is, designate them as level 0, instead of level 1.

Bom Bill of Material Eresource

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