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Erp System And WHILE USING THE Waterfall Methodology IT Essay

Evolutionary craze of information technology running a business systems keeps growing, personal and organization systems are slowly but surely becoming together as a corporate network. In matter, Building and firm of circulation in information system became a significant demand in reaching of organization's goals and to go smooth in daily work functions. Instant of using information system for transfer processing to aid routine strategies like processing consideration transaction or keeping personal details, integrating efficient systems to support included business process became a spot to boost efficiency in the complete business. Moreover, the next expansion of integration of information system is combining systems where not only systems but people to solve organization-wide problems. An engineering approach for combining people, procedures and it requires methods and tools to ensure that the machine are designed in the quickest and effective way to meet up with the requirements of system and it is satisfactory to users.

The purposes of the paper are to provide methodologies and software system development concern about integration of information system functions in the organization. Especially, it emphasises on development of venture resource planning (ERP) system that incorporate people, work operations for interior and external resources management and information system in firm. Additionally, using waterfall methodology to develop ERP system includes as a prospective point of the paper.

1. 1 Functions of ERP

Development of ERP system can brings quantity of direct and indirect of advantages to organizations. Integration of centralized and decentralized of enterprise-wide information system approaches the benefits associated with efficiency and designed for users throughout the complete organization. Furthermore, it is effective helps for better research and planning functions in the business for streamlined business operations in real-time.

However, from the opposite of view, Integration of system must solve technically problems to cooperate information systems for heterogeneous systems that have pcs built by different makes which developed on different programs and different encoding languages developed by different developers than to combine for homogeneous sites that all computer systems use the same software and equipments.

One major benefit function of ERP unveils the answer that lead enterprises to balance of resource and demand in the business and ERP bring the ability to link customers and suppliers into complete resource chain. Those things of flexibility and cost effective make advancements for customer satisfaction and provide real-time efficiency for business functions like of sales, marketing, new product development.

On the other hands, Most of ERP system based on advanced technology and includes a substantial change of work operations and movement of information system. So, replacing from existing infrastructure to new infrastructure is a negative effect of expanding ERP system. This demands the high hazards for firm including additional investment, higher personal skills and even momentary shutdown of business.

One more reason of good ERP provide accessible for different level of users at different hierarchical and improvement management including better decision making.

There is a problem to give proper training to differing people and it'll be take a period to be familiar with new information system. Overall, expanding an ERP system approaches a whole lot of advantages and disadvantages to organization. But it is worth to develop because of flexibility, better analysis and planning functions in business procedures.

1. 2 Applications of ERP

An ERP system includes a substantial of different applications matching to gain access to different levels of people and different purposes for different systems of ERP. The applications part of the paper concentrate on variety of applications that demand after on variety of systems.

Transaction Handling System (TPS) supports the basic procedures and routines functions. TPS includes processing daily ventures from staffs or client end users and save all of daily information into data source for providing responds to real-time business transitions or using as source to next level of system. In such a level of level, ERP system can includes variety of different application to works for all those practical areas from interior resources including development, production, sales and marking to outside the house stakeholders to connect. Some example applications for TPS are ATM machine, online subscription form etc.

The reason for applications that helps in Knowledge Work System (KWS) is to help technicians or professional employees for creating and increasing their jobs by giving and showing of information knowledge bottom part. By supporting people that have useful application can bring a lot of advantages like minimizing redundant works and keeping knowledge to be useful for training to new employees or keeping heading the work after one staff leaves the job.

Plenty of substantial benefits are available for using applications at Management Information System (MIS). The major reason for MIS's applications is to provide information essential to manage an organization effectively. Especially it is using as an instrument to assist professionals or decision creators in the evaluation, review and paperwork of quality of organization's MIS-related internal controls, policies, procedures and methods. This application need to provide high level of information to aid the function of corporation effectively.

Applications procedure at the machine of Decision Support System (DSS) helps activities of company to increase organizational settings when it applies to analyzing and decision making is to expedite problem solving and show new approaching to improve firm at management level. One of obvious exemplory case of DSS is "Dashboard Technology produced by the In-House Alternatives regarding its latest mobile business diagnostic alternatives. The said technology implements a real-time dashboard monitoring system which reduces variable labor cost, increases in volume level and cashflow by 7, 3 and 28 percent, respectively. Its original system implementation costs 19, 000 dollars which includes interfacing with standard ledger, radiology imaging, and revenue management".

(Controller's Statement, 2010)

The highest level of applications provide in Executive Support System(ESS) that helps professional senior managers to access information from all company levels for analyzing and decision making operations for the tactical goals of organization. The implementation of software system needs to input internal and external information for processing of system. The integration of system will be linked most of information to provide confirming and output features of productivity system.

Any tools of ERP enables people to make better decision making and increasing their business functions at different level to help flow of information from different business functions.

1. 3 Implementation

The main factor of implementation ERP system is to meet requirements of group and acceptable to users. So, Research of business and operational requirments are very important to build a successful ERP system. System analysis should be include all hierarchical of firm and it will do special value what is really requirement of businesses to build up ERP system and why existing old information system cannot provide effectively to work operations. The next phase to consider is task planning and studying useful requirements of system. Furthermore, choosing methodologies and tools to develop takes major admiration in integration information system.

But an important indicate be aware that ERP system is the most complicated system that includes many applications that support many organizational operations. The amount of differentiation among the list of applications is high and the degree of difficulty to put into action and maintain each is different. So, we are in need of to ensure about appropriate task planning and suitable design to develop information system.

Part of installation and construction is putting measurement tools and integrating all parts of hardware, software and people to system. Fundamentally, an ERP project includes a large change of work operations and information moves. Naturally, introducing changes is a difficult political process that can bring about resistance from conservative organizational systems and persons.

At another level stage, it includes properly testing of the whole system instantly business. Furthermore, the task of development provides complete education for people involvements in new system. Each single activity of system is very important and need to proceed written and examined for various users and providers.

After acceptance screening and providing ERP software, post execution supports, keeping and enhancements plan should be accessible in information software.

Moreover, "after ERP have been integrated globally in the majority of organization, many organizations remain struggling to derive benefits from the applied ERP systems. Therefore, guaranteeing post-implementation success has become the focus of the existing ERP research "(Yan Zhu, 2010).

2. Developing ERP system using waterfall methodology

There are different manufacturing organizations are employing different kind of software development in their company plus they gain different advantages from their information system applications related to ERP. Literately, a business that uses well-defined and structured software technique for developing ERP can reduce a great deal of risks in the business operations and improve successful percentage of company goals and working control in the business will be superior to without not handling flows of information system. And this paper is going to approach on the effect of using information system life pattern (The Waterfall Model) to execute the enterprise reference planning. ( Niv Ahituh. et al, spring and coil 2002)

Waterfall model system development contains amounts of develop series and activities to process ERP system. In every phase, it takes one product as insight to process and transforms another product as output. One of the function of waterfall model's Verification and Validation signifies as a evaluation activities to be sure the quality and accuracy of each product and customer's requirements that produce better quality of information system. The next diagram (Number1) represents producing life pattern of waterfall technique.

Figure 1-Growing Life Routine of Waterfall technique (Schach, 1999)

2. 1 Applying ERP system in development of waterfall methodology phases

The first preliminary requirement to develop ERP system is requirement analysis for system. The first period of waterfall strategy includes collecting data from clients, employees, managers and uses speedy prototyping to evaluation of useful requirements of system to recognize real needs of clients. The out need speciation commonly uses as a deal between clients and programmers. The feasibility analysis applies to the step of determining whether it is feasible to build up and how it should be done if justified. So, the first benefit using waterfall technique for ERP development is inspecting effectively on problems and opportunities of design, development and procedure of system to the final successful termination of system.

The next stage of developing ERP approaches job planning and the stage of design specs transform requirement standards as suggestions and design specification that how the system will put into action necessary features as outcome. In design specification, there are numbers of stages includes to create design for system execution gradually. This task can include methodologies that used to redesign existing applications like Business Process Re-engineering (BPR). BPR approaches the system to provide effectively and quickly to complete work processes effectively.

In installations and configurations of ERP system level, it needs to convert design specification of system to implementation and almost all of design specs is complex and incredibly large to use. Through the use of waterfall methodology, it offers to manage complexness of system by breaking each and every bits of activities into smaller duties whenever each activity face invalidity occasion in producing of information system request. Moreover, this phase approaches Unit trials that mainly verifies if the modules/units meet their specifications to make quality system.

Integration each part modules of system takes on major role in ERP system to reach complete system during Integration phase and tested to check if all pieces of activities coordinate between one another and the machine all together behaves according to the specifications. So this phase helps more easy way to develop information system for complicated infrastructure for heterogeneous environment. Furthermore, systems that have long life cycle will inevitably produce unstable requirements and the level of system can provide solutions for this problems. However highest and effective degree of management need to organize to integrate a full system because building have to process on different responsibilities which include different hardware, software and folks from different complex sub-system.

At Data alteration stage, it approaches training the non-public procedure and using the new system. Furthermore, Acceptance testing by an individual processes to meet necessity specs of system. Most of data transformation is associated with making changes from a vintage system to a fresh system. By applying this level with the confirmation stage of waterfall model bring quickest and successful way to produce licensed information system.

So waterfall methodology includes variety of levels and each stage support to be successful and meet the requirements when developing ERP system. Furthermore, Software development process can experience the previous stages for changes and improvements valid for multiple reapply actions in development operations. The process of verification and validation investigations all products, services, system meets requirements and suitable by an individual that makes the system to be less defects and lower risk.

Part of post implementation and maintaining the machine after creation in waterfall technique provide changes in system like correcting errors, providing new functionality and adapting the system to new platform or technologies.

Conclusion

Each organization needs a system that facilitates all its business functions, which need to be integrated. Business processes and techniques must be well described, backed and enforced, and the organization's ERP system is central to this enforcement. Moreover, to be always a strong information system, it requires to show you ensure well analyzed methodologies and waterfall method is comprised of a series of very definite phases and almost 70% of software development organizations remain using the waterfall strategy. The main contribution of this paper is processes of ERP and the positive and negative effects that ERP unveils for business process for organizations especially implementing ERP system with waterfall methodology. ( VersionOne survey, 2007)

In my estimation, integrating most of business sectors by expanding ERP system brings a lot of advantages that allow originations to become more flexibility, better evaluation and planning capacities that satisfies use of latest technology and streamlined business operations. In the other hands, Organizations have to invest time, cost and individuals recourses to complete an effective information system and face a great deal of issues on expanding occasion. Moreover, Most of organizations pay matter only on developing processes and successes of system. So, this project assumes that post execution phase will include as important part as a strong and long-term plan in growing information system.

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