ࡱ> 5@ pbjbj22 "XXh*******>FFFFL,>92^!\p!09999999$:R"=.C9*!!!C9**X9,0,0,0!l **9,0!9,0,0:0V 8@**e8 @B F ,M8 8$n909Y8 P> 0P>e8>>****e8xP>*8!!,0!!!!!C9C9>> B "0 >>BEnterprise Resource Planning systems (ERPs) integrate (or attempt to integrate) all  HYPERLINK "http://en.wikipedia.org/wiki/Data" \o "Data" data and processes of an organization into a unified system. A typical ERP system will use multiple components of computer software and hardware to achieve the  HYPERLINK "http://en.wikipedia.org/wiki/Enterprise_application_integration" \o "Enterprise application integration" integration. A key ingredient of most ERP systems is the use of a unified  HYPERLINK "http://en.wikipedia.org/wiki/Database" \o "Database" database to store data for the various system modules. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=1" \o "Edit section: Origin of the term" edit] Origin of the term The term ERP originally implied systems designed to plan the use of enterprise-wide resources. Although the acronym ERP originated in the manufacturing environment, today's use of the term ERP systems has much broader scope. ERP systems typically attempt to cover all basic functions of an organization, regardless of the organization's business or charter. Business, non-profit organizations, non governmental organizations, governments, and other large entities utilize ERP systems. Additionally, it may be noted that to be considered an ERP system, a software package generally would only need to provide functionality in a single package that would normally be covered by two or more systems. Technically, a software package that provides both payroll and accounting functions would be considered an ERP software package. However, the term is typically reserved for larger, more broadly based applications. The introduction of an ERP system to replace two or more independent applications eliminates the need for external interfaces previously required between systems, and provides additional benefits that range from standardization and lower maintenance (one system instead of two or more) to easier and/or greater reporting capabilities (as all data is typically kept in one database). Examples of modules in an ERP which formerly would have been stand-alone applications include:  HYPERLINK "http://en.wikipedia.org/wiki/Manufacturing" \o "Manufacturing" Manufacturing,  HYPERLINK "http://en.wikipedia.org/wiki/Supply_chain_management" \o "Supply chain management" Supply Chain,  HYPERLINK "http://en.wikipedia.org/wiki/Financials" \o "Financials" Financials,  HYPERLINK "http://en.wikipedia.org/wiki/Customer_Relationship_Management" \o "Customer Relationship Management" Customer Relationship Management (CRM),  HYPERLINK "http://en.wikipedia.org/wiki/Human_Resources" \o "Human Resources" Human Resources,  HYPERLINK "http://en.wikipedia.org/wiki/Warehouse_Management_System" \o "Warehouse Management System" Warehouse Management and Decision Support System. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=2" \o "Edit section: Overview" edit] Overview Some organizations - typically those with sufficient in-house IT skills to integrate multiple software products - choose to implement only portions of an ERP system and develop an external interface to other ERP or stand-alone systems for their other application needs. For instance, the  HYPERLINK "http://en.wikipedia.org/wiki/PeopleSoft" \o "PeopleSoft" PeopleSoft  HYPERLINK "http://en.wikipedia.org/wiki/HRMS" \o "HRMS" HRMS and Financials systems may be perceived to be better than  HYPERLINK "http://en.wikipedia.org/wiki/SAP_AG" \o "SAP AG" SAP's  HYPERLINK "http://en.wikipedia.org/wiki/HRMS" \o "HRMS" HRMS solution. And likewise, some may perceive  HYPERLINK "http://en.wikipedia.org/wiki/SAP_AG" \o "SAP AG" SAP's manufacturing and CRM systems as better than  HYPERLINK "http://en.wikipedia.org/wiki/PeopleSoft" \o "PeopleSoft" PeopleSoft's equivalents. In this case these organizations may justify the purchase of an ERP system, but choose to purchase the PeopleSoft HRMS and Financials modules from Oracle, and their remaining applications from SAP. HYPERLINK "http://en.wikipedia.org/wiki/Wikipedia:Citing_sources" \o "Wikipedia:Citing sources" [citation needed] This is very common in the retail sector HYPERLINK "http://en.wikipedia.org/wiki/Wikipedia:Citing_sources" \o "Wikipedia:Citing sources" [citation needed], where even a mid-sized retailer will have a discrete  HYPERLINK "http://en.wikipedia.org/wiki/Point-of-Sale" \o "Point-of-Sale" Point-of-Sale (POS) product and financials application, then a series of specialised applications to handle business requirements such as warehouse management, staff rostering, merchandising and logistics. Ideally, ERP delivers a single database that contains all data for the software modules, which would include:  HYPERLINK "http://en.wikipedia.org/wiki/Manufacturing" \o "Manufacturing" Manufacturing Engineering, Bills of Material, Scheduling, Capacity, Workflow Management, Quality Control, Cost Management, Manufacturing Process, Manufacturing Projects, Manufacturing Flow  HYPERLINK "http://en.wikipedia.org/wiki/Supply_Chain_Management" \o "Supply Chain Management" Supply Chain Management Inventory, Order Entry, Purchasing, Product Configurator, Supply Chain Planning, Supplier Scheduling, Inspection of goods, Claim Processing, Commission Calculation  HYPERLINK "http://en.wikipedia.org/wiki/Financials" \o "Financials" Financials General Ledger, Cash Management, Accounts Payable, Accounts Receivable, Fixed Assets  HYPERLINK "http://en.wikipedia.org/wiki/Projects" \o "Projects" Projects Costing, Billing, Time and Expense, Activity Management  HYPERLINK "http://en.wikipedia.org/wiki/Human_Resources" \o "Human Resources" Human Resources Human Resources, Payroll, Training, Time & Attendance, Benefits  HYPERLINK "http://en.wikipedia.org/wiki/Customer_Relationship_Management" \o "Customer Relationship Management" Customer Relationship Management Sales and Marketing, Commissions, Service, Customer Contact and Call Center support  HYPERLINK "http://en.wikipedia.org/wiki/Data_Warehouse" \o "Data Warehouse" Data Warehouse and various Self-Service interfaces for Customers, Suppliers, and Employees Enterprise Resource Planning is a term originally derived from manufacturing resource planning ( HYPERLINK "http://en.wikipedia.org/wiki/MRP_II" \o "MRP II" MRP II) that followed  HYPERLINK "http://en.wikipedia.org/wiki/Material_requirements_planning" \o "Material requirements planning" material requirements planning (MRP). MRP evolved into ERP when "routings" became major part of the software architecture and a company's capacity planning activity also became a part of the standard software activity. ERP systems typically handle the  HYPERLINK "http://en.wikipedia.org/wiki/Manufacturing" \o "Manufacturing" manufacturing,  HYPERLINK "http://en.wikipedia.org/wiki/Logistics" \o "Logistics" logistics,  HYPERLINK "http://en.wikipedia.org/wiki/Distribution_%28business%29" \o "Distribution (business)" distribution,  HYPERLINK "http://en.wikipedia.org/wiki/Inventory" \o "Inventory" inventory,  HYPERLINK "http://en.wikipedia.org/wiki/Shipping" \o "Shipping" shipping,  HYPERLINK "http://en.wikipedia.org/wiki/Invoice" \o "Invoice" invoicing, and  HYPERLINK "http://en.wikipedia.org/wiki/Accounting" \o "Accounting" accounting for a company. Enterprise Resource Planning or ERP  HYPERLINK "http://en.wikipedia.org/wiki/Computer_software" \o "Computer software" software can aid in the control of many  HYPERLINK "http://en.wikipedia.org/wiki/Business" \o "Business" business activities, like  HYPERLINK "http://en.wikipedia.org/wiki/Sales" \o "Sales" sales, marketing,  HYPERLINK "http://en.wikipedia.org/wiki/Delivery_%28commerce%29" \o "Delivery (commerce)" delivery, billing, production, inventory management,  HYPERLINK "http://en.wikipedia.org/wiki/Quality_management" \o "Quality management" quality management, and  HYPERLINK "http://en.wikipedia.org/wiki/Human_resource_management" \o "Human resource management" human resource management. ERPs are often incorrectly called  HYPERLINK "http://en.wikipedia.org/wiki/Back_office" \o "Back office" back office systems indicating that  HYPERLINK "http://en.wikipedia.org/wiki/Customer" \o "Customer" customers and the general public are not directly involved. This is contrasted with front office systems like  HYPERLINK "http://en.wikipedia.org/wiki/Customer_relationship_management" \o "Customer relationship management" customer relationship management (CRM) systems that deal directly with the customers, or the eBusiness systems such as eCommerce, eGovernment, eTelecom, and eFinance, or  HYPERLINK "http://en.wikipedia.org/wiki/Supply_chain_management" \o "Supply chain management" supplier relationship management (SRM) systems. ERPs are cross-functional and enterprise wide. All functional departments that are involved in operations or production are integrated in one system. In addition to manufacturing, warehousing, logistics, and Information Technology, this would include  HYPERLINK "http://en.wikipedia.org/wiki/Accountancy" \o "Accountancy" accounting,  HYPERLINK "http://en.wikipedia.org/wiki/Human_resources" \o "Human resources" human resources,  HYPERLINK "http://en.wikipedia.org/wiki/Marketing" \o "Marketing" marketing, and  HYPERLINK "http://en.wikipedia.org/wiki/Strategic_management" \o "Strategic management" strategic management. ERP II means open ERP architecture of components. The older, monolithic ERP systems became component oriented. EAS - Enterprise Application Suite is a new name for formerly developed ERP systems which include (almost) all segments of business, using ordinary Internet browsers as thin clients. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=3" \o "Edit section: Before" edit] Before Prior to the concept of ERP systems, departments within an organization (for example, the Human Resources (HR) department, the Payroll (PR) department, and the Financials department) would have their own computer systems. The HR computer system (Often called HRMS or HRIS) would typically contain information on the department, reporting structure, and personal details of employees. The PR department would typically calculate and store paycheck information. The Financials department would typically store financial transactions for the organization. Each system would have to rely on a set of common data to communicate with each other. For the HRIS to send salary information to the PR system, an employee number would need to be assigned and remain static between the two systems to accurately identify an employee. The Financials system was not interested in the employee level data, but only the payouts made by the PR systems, such as the Tax payments to various authorities, payments for employee benefits to providers, and so on. This provided complications. For instance, a person could not be paid in the Payroll system without an employee number. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=4" \o "Edit section: After" edit] After ERP software, among other things, combined the data of formerly separate applications. This made the worry of keeping numbers in synchronization across multiple systems disappear. It standardised and reduced the number of software specialities required within larger organizations. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=5" \o "Edit section: Best Practices" edit] Best Practices  HYPERLINK "http://en.wikipedia.org/wiki/Best_Practice" \o "Best Practice" Best Practices were also a benefit of implementing an ERP system. When implementing an ERP system, organizations essentially had to choose between customizing the software or modifying their business processes to the "Best Practice" functionality delivered in the vanilla version of the software. Typically, the delivery of best practice applies more usefully to large organizations and especially where there is a compliance requirement such as IFRS, Sarbanes-Oxley or Basel II, or where the process is a commodity such as electronic funds transfer. This is because the procedure of capturing and reporting legislative or commodity content can be readily codified within the ERP software, and then replicated with confidence across multiple businesses who have the same business requirement. Where such a compliance or commodity requirement does not underpin the business process, it can be argued that determining and applying a best practice actually erodes competitive advantage by homogenizing the business compared to everyone else in their industry sector. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=6" \o "Edit section: Implementation" edit] Implementation Because of their wide scope of application within a business, ERP software  HYPERLINK "http://en.wikipedia.org/wiki/System" \o "System" systems are typically complex and usually impose significant changes on staff work practices. Implementing ERP software is typically not an "in-house" skill, so even smaller projects are more cost effective if specialist ERP implementation consultants are employed. The length of time to implement an ERP system depends on the size of the business, the scope of the change and willingness of the customer to take ownership for the project. A small project (e.g., a company of less than 100 staff) may be planned and delivered within 3 months; however, a large, multi-site or multi-country implementation may take years. The most important aspect of any ERP implementation is that the company who has purchased the ERP product takes ownership of the project. To implement ERP systems, companies often seek the help of an ERP vendor or of third-party  HYPERLINK "http://en.wikipedia.org/wiki/Consultancy" \o "Consultancy" consulting companies. These firms typically provide three areas of professional services: Consulting, Customization and Support. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=7" \o "Edit section: Consulting Services" edit] Consulting Services The Consulting team is typically responsible for your initial ERP implementation and subsequent delivery of work to tailor the system beyond "go live". Typically such tailoring includes additional product training; creation of process triggers and workflow; specialist advice to improve how the ERP is used in the business; system optimisation; and assistance writing reports, complex data extracts or implementing Business Intelligence. The consulting team are also responsible for planning and jointly testing the implementation. This is a critical part of the project, and one that is often overlooked. Consulting for a large ERP project involves three levels: systems architecture, business process consulting (primarily re-engineering) and technical consulting (primarily programming and tool configuration activity). A systems architect designs the overall dataflow for the enterprise including the future dataflow plan. A business consultant studies an organization's current business processes and matches them to the corresponding processes in the ERP system, thus 'configuring' the ERP system to the organization's needs. Technical consulting often involves programming. Most ERP vendors allow modification of their software to suit the business needs of their customer. 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. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=8" \o "Edit section: Customization Services" edit] Customization Services Customization is the process of extending or changing how the system works by writing new user interfaces and underlying application code. Such customisations typically reflect local work practices that are not currently in the core routines of the ERP system software. Examples of such code include early adopter features (e.g., mobility interfaces were uncommon a few years ago and were typically customised) or interfacing to third party applications (this is 'bread and butter' customization for larger implementations as there are typically dozens of ancillary systems that the core ERP software has to interact with). The Professional Services team is also involved during ERP upgrades to ensure that customisations are compatible with the new release. In some cases the functionality delivered via a previous customization may have been subsequently incorporated into the core routines of the ERP software, allowing customers to revert back to standard product and retire the customization completely. Customizing an ERP package can be very expensive and complicated, because many ERP packages are not designed to support customization, so most businesses implement the  HYPERLINK "http://en.wikipedia.org/wiki/Best_practices" \o "Best practices" best practices embedded in the acquired ERP system. Some ERP packages are very generic in their reports and inquiries, such that customization is expected in every implementation. It is important to recognize that for these packages it often makes sense to buy  HYPERLINK "http://en.wikipedia.org/wiki/Third_party" \o "Third party" third party plug-ins that interface well with your ERP software rather than reinventing the wheel. Customization work is usually undertaken as bespoke software development on a time and materials basis. Because of the specialist nature of the customization and the 'one off' aspect of the work, it is common to pay in the order of $200 per hour for this work. Also, in many cases the work delivered as customization is not covered by the ERP vendors Maintenance Agreement, so while there is typically a 90-day warranty against software faults in the custom code, there is no obligation on the ERP vendor to warrant that the code works with the next upgrade or point release of the core product. One often neglected aspect of customization is the associated documentation. While it can seem like a considerable -- and expensive -- overhead to the customization project, it is critical that someone is responsible for the creation and user testing of the documentation. Without the description on how to use the customisation, the effort is largely wasted as it becomes difficult to train new staff in the work practice that the customization delivers. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=9" \o "Edit section: Maintenance and Support Services" edit] Maintenance and Support Services Once your system has been implemented, the consulting company will typically enter into a Support Agreement to assist your staff to keep the ERP software running in an optimal way. To minimize additional costs and provide more realism into the needs of the units to be affected by ERP (as an added service to customers), the option of creating a committee headed by the consultant using participative management approach during the design stage with the client's heads of departments(no substitutes allowed) to be affected by the changes in ERPs to provide hands on management control requirements planning. This would allow direct long term projections into the client's needs, thus minimizing future conversion patches (at least for the 1st 5 years operation unless there is a corporate-wide organizational structural change involving operational systems)on a more dedicated approach to initial conversion. A Maintenance Agreement typically provides you rights to all current version patches, and both minor and major releases, and will most likely allow your staff to raise support calls. While there is no standard cost for this type of agreement, they are typically between 15% and 20% of the list price of the ERP user licenses. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=10" \o "Edit section: Advantages" edit] Advantages In the absence of an ERP system, a large manufacturer may find itself with many software applications that do not talk to each other and do not effectively interface. Tasks that need to interface with one another may involve: design  HYPERLINK "http://en.wikipedia.org/wiki/Engineering" \o "Engineering" engineering (how to best make the product) order tracking from acceptance through fulfillment the revenue cycle from  HYPERLINK "http://en.wikipedia.org/wiki/Invoice" \o "Invoice" invoice through cash receipt managing interdependencies of complex  HYPERLINK "http://en.wikipedia.org/wiki/Bill_of_Material" \o "Bill of Material" Bill of Materials tracking the 3-way match between  HYPERLINK "http://en.wikipedia.org/wiki/Purchase_order" \o "Purchase order" Purchase orders (what was ordered),  HYPERLINK "http://en.wikipedia.org/wiki/Inventory" \o "Inventory" Inventory receipts (what arrived), and  HYPERLINK "http://en.wikipedia.org/wiki/Cost" \o "Cost" Costing (what the vendor invoiced) the  HYPERLINK "http://en.wikipedia.org/wiki/Accounting" \o "Accounting" Accounting for all of these tasks, tracking the  HYPERLINK "http://en.wikipedia.org/wiki/Revenue" \o "Revenue" Revenue,  HYPERLINK "http://en.wikipedia.org/wiki/Cost" \o "Cost" Cost and  HYPERLINK "http://en.wikipedia.org/wiki/Profit" \o "Profit" Profit on a granular level. Change how a product is made, in the  HYPERLINK "http://en.wikipedia.org/wiki/Engineering" \o "Engineering" engineering details, and that is how it will now be made. Effective dates can be used to control when the switch over will occur from an old version to the next one, both the date that some ingredients go into effect, and date that some are discontinued. Part of the change can include labeling to identify version numbers.  HYPERLINK "http://en.wikipedia.org/wiki/Computer_security" \o "Computer security" Computer security is included within an ERP to protect against both outsider crime, such as  HYPERLINK "http://en.wikipedia.org/wiki/Industrial_espionage" \o "Industrial espionage" industrial espionage, and insider crime, such as  HYPERLINK "http://en.wikipedia.org/wiki/Embezzlement" \o "Embezzlement" embezzlement. A data tampering scenario might involve a  HYPERLINK "http://en.wikipedia.org/wiki/Terrorism" \o "Terrorism" terrorist altering a  HYPERLINK "http://en.wikipedia.org/wiki/Bill_of_Materials" \o "Bill of Materials" Bill of Materials so as to put  HYPERLINK "http://en.wikipedia.org/wiki/Poison" \o "Poison" poison in food products, or other sabotage. ERP security helps to prevent abuse as well. [ HYPERLINK "http://en.wikipedia.org/w/index.php?title=Enterprise_resource_planning&action=edit§ion=11" \o "Edit section: Disadvantages" edit] Disadvantages Many problems organizations have with ERP systems are due to inadequate investment in ongoing training for involved 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 how it is used. Limitations of ERP include: Success depends on the skill and experience of the workforce, including training about how to make the system work correctly. Many companies cut costs by cutting training budgets. Privately owned small enterprises are often undercapitalized, meaning their ERP system is often operated by personnel with inadequate education in ERP in general, such as  HYPERLINK "http://en.wikipedia.org/wiki/APICS" \o "APICS" APICS foundations, and in the particular ERP vendor package being used. Personnel turnover; companies can employ new managers lacking education in the company's ERP system, proposing changes in business practices that are out of synchronization with the best utilization of the company's selected ERP. Customization of the ERP software is limited. Some customization may involve changing of the ERP software structure which is usually not allowed. 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 to install often ranging from 30,000 to 500,000,000 for multinational companies. ERP vendors can charge sums of money for annual license renewal that is unrelated to the size of the company using the ERP or its profitability.  HYPERLINK "http://en.wikipedia.org/wiki/Technical_support" \o "Technical support" Technical support personnel often give replies to callers that are inappropriate for the caller's corporate structure. Computer security concerns arise, for example when telling a non-programmer how to change a database on the fly, at a company that requires an audit trail of changes so as to meet some regulatory standards. ERPs are often seen as too rigid and too difficult to adapt to the specific  HYPERLINK "http://en.wikipedia.org/wiki/Workflow" \o "Workflow" workflow and business process of some companiesthis is cited as one of the main causes of their failure. Systems can be difficult to use. Systems are too restrictive and does not allow much flexibility in implementation and usage. The system can suffer from the "weakest link" probleman inefficiency in one department or at one of the partners may affect other participants. 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. There are frequent compatibility problems with the various legacy systems of the partners. The system may be over-engineered relative to the actual needs of the customer. 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