Enterprise Resource Planning:
ERP is a platform that facilitates
the database control in a company. The working mechanism of ERP is
simple and easy to understand. ERP aims to unite the data processed in
various departments and division of a company. The central unit referred
as the platform controls the entire system. It aims at providing
connectivity in order to access the information from all faculties. The
benefit of ERP is largely felt nowadays when operations are becoming
global in the true sense.
With the intervention of ERP it becomes
equally easy for the other departments of the company to check the
information regarding the order. Similarly it is not necessary for
departments to keep working on it all through to know their chance or in
other words discharging their respective area of work in the whole
process. On the contrary ERP intimates them as soon as it is their
chance. ERP software solution is the one step answer. Implementing ERP
in an organization depends upon that whether it could yield necessary
benefits rather than the troublemaker.
Enterprise resource planning (ERP)
is
an integrated computer-based system used to manage internal and
external resources including tangible assets, financial resources,
materials, and human resources. It is a software architecture whose
purpose is to facilitate the flow of information between all business
functions inside the boundaries of the organization and manage the
connections to outside stakeholders. Built on a centralized database and
normally utilizing a common computing platform, ERP systems consolidate
all business operations into a uniform and enterprise wide system
environment.
An ERP system can either reside on a centralized server
or be distributed across modular hardware and software units that
provide "services" and communicate on a local area network. The
distributed design allows a business to assemble modules from different
vendors without the need for the placement of multiple copies of
complex, expensive computer systems in areas which will not use their
full capacity.
Origin of the term
The initialism ERP was first
employed by research and analysis firm Gartner Group in 1990 as an
extension of MRP (Material Requirements Planning; later manufacturing
resource planning) and CIM (Computer Integrated Manufacturing), and
while not supplanting these terms, it has come to represent a larger
whole. It came into use as makers of MRP software started to develop
software applications beyond the manufacturing arena. ERP systems now
attempt to cover all core functions of an enterprise, regardless of the
organization's business or charter. These systems can now be found in
non-manufacturing businesses, non-profit organizations and governments.
To be considered an ERP system, a software package should have the following traits:
• It should be integrated and operate in real-time with no periodic batch updates.
• All applications should access one database to prevent redundant data and multiple data definitions.
• All modules should have the same look and feel.
• Users should be able to access any information in the system without needed integration work on the part of the IS department
ERP Components
Transactional Backbone
• Financials
• Distribution
• Human Resources
• Product lifecycle management
Advanced Applications
• Customer Relationship Management (CRM)
• Supply chain management
o Purchasing
o Manufacturing
o Distribution
• Warehouse Management System
Management Portal/Dashboard
• Decision Support System
These modules can exist in a complete system or utilized in an ad-hoc fashion.
Commercial Applications
Manufacturing
Engineering,
bills of material, scheduling, capacity, workflow management, quality
control, cost management, manufacturing process, manufacturing projects,
manufacturing flow
Supply chain management
Order to cash,
inventory, order entry, purchasing, product configurator, supply chain
planning, supplier scheduling, inspection of goods, claim processing,
commission calculation
Financials
General ledger, cash management, accounts payable, accounts receivable, fixed assets
Project management
Costing, billing, time and expense, performance units, activity management
Human resources
Human resources, payroll, training, time and attendance, rostering, benefits
Customer relationship management
Sales and marketing, commissions, service, customer contact and call center support
Data services
Various "self-service" interfaces for customers, suppliers, and/or employees
Access control
Management of user privileges for various processes
Implementation
Businesses
have a wide scope of applications and processes throughout their
functional units; producing ERP software systems that are typically
complex and usually impose significant changes on staff work practices.
Implementing ERP software is typically too complex for "in-house" skill,
so it is desirable and highly advised to hire outside consultants who
are professionally trained to implement these systems. This is typically
the most cost effective way. There are three types of services that may
be employed for - Consulting, Customization, Support. The length of
time to implement an ERP system depends on the size of the business, the
number of modules, the extent of customization, the scope of the change
and the willingness of the customer to take ownership for the project.
ERP systems are modular, so they don't all need be implemented at once.
It can be divided into various stages, or phase-ins. The typical project
is about 14 months and requires around 150 consultants. A small project
(e.g., a company of less than 100 staff) can be planned and delivered
within 3–9 months; however, a large, multi-site or multi-country
implementation can take years. The length of the implementations is
closely tied to the amount of customization desired.
To implement
ERP systems, companies often seek the help of an ERP vendor or of
third-party consulting companies. These firms typically provide three
areas of professional services: consulting; customization; and support.
The client organization can also employ independent program management,
business analysis, change management, and UAT specialists to ensure
their business requirements remain a priority during implementation.
Data
migration is one of the most important activities in determining the
success of an ERP implementation. Since many decisions must be made
before migration, a significant amount of planning must occur.
Unfortunately, data migration is the last activity before the production
phase of an ERP implementation, and therefore receives minimal
attention due to time constraints. The following are steps of a data
migration strategy that can help with the success of an ERP
implementation
1. Identifying the data to be migrated
2. Determining the timing of data migration
3. Generating the data templates
4. Freezing the tools for data migration
5. Deciding on migration related setups
6. Deciding on data archiving
Process preparation
ERP
vendors have designed their systems around standard business processes,
based upon best business practices. Different vendor(s) have different
types of processes but they are all of a standard, modular nature. Firms
that want to implement ERP systems are consequently forced to adapt
their organizations to standardized processes as opposed to adapting the
ERP package to the existing processes neglecting to map current
business processes prior to starting ERP implementation is a main reason
for failure of ERP projects. It is therefore crucial that organizations
perform a thorough business process analysis before selecting an ERP
vendor and setting off on the implementation track. This analysis should
map out all present operational processes, enabling selection of an ERP
vendor whose standard modules are most closely aligned with the
established organization. Redesign can then be implemented to achieve
further process congruence. Research indicates that the risk of business
process mismatch is decreased by:
• linking each current organizational process to the organization's strategy;
• analyzing the effectiveness of each process in light of its current related business capability;
• understanding the automated solutions currently implemented.
ERP
implementation is considerably more difficult (and politically charged)
in organizations structured into nearly independent business units,
each responsible for their own profit and loss, because they will each
have different processes, business rules, data semantics, authorization
hierarchies and decision centers. Solutions include requirements
coordination negotiated by local change management professionals or, if
this is not possible, federated implementation using loosely integrated
instances (e.g. linked via Master Data Management) specifically
configured and/or customized to meet local needs.]
A disadvantage
usually attributed to ERP is that business process redesign to fit the
standardized ERP modules can lead to a loss of competitive advantage.
While documented cases exist where this has indeed materialized, other
cases show that following thorough process preparation ERP systems can
actually increase sustainable competitive advantage.
Configuration
Configuring
an ERP system is largely a matter of balancing the way you want the
system to work with the way the system lets you work. Begin by deciding
which modules to install, then adjust the system using configuration
tables to achieve the best possible fit in working with your company's
processes
Modules — Most systems are modular simply for the
flexibility of implementing some functions but not others. Some common
modules, such as finance and accounting are adopted by nearly all
companies implementing enterprise systems; others however such as human
resource management are not needed by some companies and therefore not
adopted. A service company for example will not likely need a module for
manufacturing. Other times companies will not adopt a module because
they already have their own proprietary system they believe to be
superior. Generally speaking the greater number of modules selected, the
greater the integration benefits, but also the increase in costs, risks
and changes involved
Configuration Tables – A configuration table
enables a company to tailor a particular aspect of the system to the way
it chooses to do business. For example, an organization can select the
type of inventory accounting – FIFO or LIFO – it will employ or whether
it wants to recognize revenue by geographical unit, product line, or
distribution channel.
So what happens when the options the system
allows just aren't good enough? At this point a company has two choices,
both of which are not ideal. It can re-write some of the enterprise
system's code, or it can continue to use an existing system and build
interfaces between it and the new enterprise system. Both options will
add time and cost to the implementation process. Additionally they can
dilute the system's integration benefits. The more customized the system
becomes the less possible seamless communication between suppliers and
customers
Consulting services
Many organizations do not have
sufficient internal skills to implement an ERP project. This results in
many organizations offering consulting services for ERP implementation.
Typically, a consulting team is responsible for the entire ERP
implementation including
1. selecting
2. planning
3. training
4. testing
5. implementation
6. delivery
of
any customized modules. Examples of customization includes creating
processes and reports for compliance, 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
Unlike most
single-purpose applications, ERP packages have historically included
full source code and shipped with vendor-supported team IDEs for
customizing and extending the delivered code. During the early years of
ERP the guarantee of mature tools and support for extensive
customization was an important sales argument when a potential customer
was considering developing their own unique solution in-house, or
assembling a cross-functional solution by integrating multiple "best of
breed" applications
"Core system" customization vs configuration
Increasingly,
ERP vendors have tried to reduce the need for customization by
providing built-in "configuration" tools to address most customers'
needs for changing how the out-of-the-box core system works. Key
differences between customization and configuration include
•
Customization is always optional, whereas some degree of configuration
(e.g., setting up cost/profit centre structures, organisational trees,
purchase approval rules, etc.) may be needed before the software will
work at all.
• Configuration is available to all customers, whereas
customization allows individual customer to implement proprietary
"market-beating" processes.
• Configuration changes tend to be
recorded as entries in vendor-supplied data tables, whereas
customization usually requires some element of programming and/or
changes to table structures or views.
• The effect of configuration
changes on the performance of the system is relatively predictable and
is largely the responsibility of the ERP vendor. The effect of
customization is unpredictable and may require time-consuming stress
testing by the implementation team.
• Configuration changes are
almost always guaranteed to survive upgrades to new software versions.
Some customizations (e.g. code that uses pre-defined "hooks" that are
called before/after displaying data screens) will survive upgrades,
though they will still need to be re-tested. More extensive
customizations (e.g. those involving changes to fundamental data
structures) will be overwritten during upgrades and must be
re-implemented manually.
By this analysis, customizing an ERP
package can be unexpectedly expensive and complicated, and tends to
delay delivery of the obvious benefits of an integrated system.
Nevertheless, customizing an ERP suite gives the scope to implement
secret recipes for excellence in specific areas while ensuring that
industry best practices are achieved in less sensitive areas.
Extensions
In
this context, "Extensions" refers to ways that an ERP environment can
be "extended" (supplemented) with third-party programs. It is
technically easy to expose most ERP transactions to outside programs
that do other things, e.g:
• archiving, reporting and republishing (these are easiest to achieve, because they mainly address static data);
•
performing transactional data captures, e.g. using scanners, tills or
RFIDs (also relatively easy because they touch existing data);
However,
because ERP applications typically contain sophisticated rules that
control how data can be created or changed, some such functions can be
very difficult to implement.
Advantages
In the absence of an
ERP system, a large manufacturer may find itself with many software
applications that cannot communicate or interface effectively with one
another. Tasks that need to interface with one another may involve.
•
ERP systems connect the necessary software in order for accurate
forecasting to be done. This allows inventory levels to be kept at
maximum efficiency and the company to be more profitable.
• Integration among different functional areas to ensure proper communication, productivity and efficiency
• Design engineering (how to best make the product)
• Order tracking, from acceptance through fulfillment
• The revenue cycle, from invoice through cash receipt
• Managing inter-dependencies of complex processes bill of materials
•
Tracking the three-way match between purchase orders (what was
ordered), inventory receipts (what arrived), and costing (what the
vendor invoiced)
• The accounting for all of these tasks: tracking the revenue, cost and profit at a granular level.
ERP Systems centralize the data in one place. Benefits of this include:
•
Eliminates the problem of synchronizing changes between multiple
systems - consolidation of finance, marketing and sales, human resource,
and manufacturing applications
• Permits control of business processes that cross functional boundaries
•
Provides top-down view of the enterprise (no "islands of information"),
real time information is available to management anywhere, anytime to
make proper decisions.
• Reduces the risk of loss of sensitive data by consolidating multiple permissions and security models into a single structure.
• Shorten production leadtime and delivery time
• Facilitating business learning, empowering, and building common visions
Some
security features are included within an ERP system to protect against
both outsider crime, such as industrial espionage, and insider crime,
such as embezzlement. A data-tampering scenario, for example, might
involve a disgruntled employee intentionally modifying prices to
below-the-breakeven point in order to attempt to interfere with the
company's profit or other sabotage. ERP systems typically provide
functionality for implementing internal controls to prevent actions of
this kind. ERP vendors are also moving toward better integration with
other kinds of information security tools.
Disadvantages
Problems
with ERP systems are mainly due to inadequate investment in ongoing
training for the involved IT personnel - including those implementing
and testing changes - as well as a lack of corporate policy protecting
the integrity of the data in the ERP systems and the ways in which it is
used.
Disadvantages
• Customization of the ERP software is limited.
•
Re-engineering of business processes to fit the "industry standard"
prescribed by the ERP system may lead to a loss of competitive
advantage.
• ERP systems can be very expensive (This has led to a new category of "ERP light" solutions)
•
ERPs are often seen as too rigid and too difficult to adapt to the
specific workflow and business process of some companies—this is cited
as one of the main causes of their failure.
• Many of the integrated
links need high accuracy in other applications to work effectively. A
company can achieve minimum standards, then over time "dirty data" will
reduce the reliability of some applications.
• Once a system is
established, switching costs are very high for any one of the partners
(reducing flexibility and strategic control at the corporate level).
• The blurring of company boundaries can cause problems in accountability, lines of responsibility, and employee morale.
• Resistance in sharing sensitive internal information between departments can reduce the effectiveness of the software.
•
Some large organizations may have multiple departments with separate,
independent resources, missions, chains-of-command, etc, and
consolidation into a single enterprise may yield limited benefits.
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