The following are the areas of work which a consultant can opt.
Consulting Services
Many organizations did not have sufficient internal skills to implement an ERP project. This resulted in many organizations offering consulting services for ERP implementation. Typically, a consulting team was responsible for the entire ERP implementation including planning, training, testing, implementation, and delivery of any customized modules. Examples of customization includes additional product training; creation of process triggers and workflow; specialist advice to improve how the ERP is used in the business; system optimization; and assistance writing reports, complex data extracts or implementing Business Intelligence.
For most mid-sized companies, the cost of the implementation will range from around the list price of the ERP user licenses to up to twice this amount (depending on the level of customization required). Large companies, and especially those with multiple sites or countries, will often spend considerably more on the implementation than the cost of the user licenses -- three to five times more is not uncommon for a multi-site implementation.
Customization Services
Customization Services involves any modifications or extensions that change how the out-of-the-box ERP system works.
Customizing an ERP package can be very expensive and complicated. Some ERP packages are not designed to support customization, so most businesses implement the best practices embedded in the acquired ERP system. Some ERP packages have very generic features, such that customization occurs in most implementations. It is also often possible to extend the standard ERP package by purchasing third party software to provide additional functionality.
Customization work is usually undertaken as bespoke software development on a time and materials basis.
Customization can be further classified into: Core system customization or custom extensions in custom libraries.
Core system customization is where customers change the software vendors' proprietary code. This means that the software will no longer be supported by the vendor for the particular function that was customized as the code would be modified to the customers need. The customers IT department will then normally support the code in-house or subcontract a consulting organization to do so.
Custom extensions are where a customer build bolt-on custom applications that run parallel to the standard system i.e. custom extended applications. Modules that are extended but core code not changed remain supported but the extensions will have to be supported by the customers IT department or subcontracted consulting organization.
Maintenance and Support Services
Maintenance and Support Services involves monitoring and managing an Operational ERP system. This function is often provided in-house using members of the IT department, but may also be provided by specialist external consulting and services companies.
