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4 pages/≈1100 words
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Technology
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Essay
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English (U.S.)
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Topic:

System Testing, Installation, and Maintenance Research

Essay Instructions:

Assignment Overview
Construction is the development of all parts of a system including software, documentation, and operating procedures.
Application programmers write programs, and the first step in programming is assigning program modules to programmers. Each programming module should be separate and distinct from other modules to ensure uniqueness. Testing a program begins with developing a test plan that defines a series of tests that will be conducted by the programmer and users. A test plan defines test cases, testing objectives, and expected results to be observed. In some cases, tests cannot be conducted by entering data, and instead, they are conducted by a combination of commands. The various test stages include unit and module testing, system testing, and integration testing. Unit testing can begin as soon as certain programs or modules are ready. Acceptance testing is done by the users with the idea to approve the system prior to deployment.
There are two types of documentation. System documentation is intended to help programmers and analyst to understand the program, module, or application even after installation. User documentation, on the other hand, consists of user manuals, training manuals, and online help systems. These are designed to help the user operate and troubleshoot the system. In addition reference manuals, tutorials, and procedure manuals are prepared to describe how to perform business tasks such as printing forms or taking a customer order.
Required Reading
Management Information and Control Systems. (2008). System implementation and maintenance. Retrieved from http://220.227.161.86/19267comp_sugans_finalold_mics_cp10.pdf
Barry, C. (2010, October 1). 7 steps to successful system implementation. Retrieved from http://multichannelmerchant(dot)com/opsandfulfillment/successful-systems-implementation-steps-1001/
Meister Corporation. (2012). System implementation and maintenance. Retrieved from http://www(dot)meistercorporation(dot)com/Implementation.aspx
Hoffer, J., George, J., & Valacich, J. (2012). Modern Systems Analysis and Design. [PPT file]. Chapter 10 System Implementation. 
SlideServe. (2012). Systems implementation and maintenance. [PPT file]. Retrieved from http://www(dot)slideserve(dot)com/poppy/system-implementation-and-maintenance
Baars, W. (2006). The Project Management Handbook, Licensed under the Creative Commons.
Salazar, V. (2005). Development, acquisition, implementation, maintenance, of application systems. CGIAR Internal Audit Unit. Retrieved from http://www(dot)cgiar(dot)org/www-archive/www(dot)cgiar(dot)org/pdf/iau/gpn_development_acquisition_implementation_mar2008.pdf
Indiabix. (2014). Testing questions and answers. Retrieved from http://www(dot)indiabix(dot)com/technical/software-testing/
Landa, D. (n.d.). Implementation and maintenance. [PPT file]. Retrieved from http://www(dot)cs(dot)nott(dot)ac(dot)uk/~jds/teaching/archive/G52LSSLecture19.pdf
Mishra, D. (2011). Implementation, evaluation, and maintenance of information system. Retrieved from http://latesttechnomanias(dot)blogspot(dot)com/2011/08/implementation-evaluation-and.html
Valacich, J., George, J, & Hoffer, J. (2012). Modern Systems Analysis and Design. Chapter Flashcard sets. Chapter 11. [Audio file]. Retrieved from http://quizlet(dot)com/16362860/modern-systems-analysis-design-chapter-11-flash-cards/ 
Gunda, V (n.d.). Designing using UML (5 steps). refine. Retrieved from https://www(dot)scribd(dot)com/doc/14657794/Designing-using-UML-5-Steps
Assignment
Describe the process of coding, testing, and converting a large organizational information system and outline the deliverables and outcomes of the process. Apply one of the four installation strategies: direct, parallel, single location, and phased installation. Write this assignment in 4-5 pages.

Essay Sample Content Preview:

System Testing, Installation, and Maintenance
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Background
Coding, testing and converting the information system of an organization are all part of the system development and implementation. It is important to ensure that the information system specifications are reliable and suited to the organization. Additionally, the process is documented to understand what has already been done and what needs to be achieved. While designing the information system, the system developers keep records of the documentation process for future reference. The Single location/ pilot installation process is identified as the most effective to ensure a smooth transition from the old system to the new system. The initial installation, testing and maintenance are undertaken in series, with the system software being acquired to be compatible with the required hardware (Mishra, 2011).
Coding
Coding is one of the initial stages before installation of the IS, where programmers use the physical design specifications with the aim of working with the computer codes (SlideServe, 2012). The source code availability is important when developing the system, and should be acquired directly from the vendor when being purchased. When this is not possible, it is necessary to make provisions with the vendor, and this includes relying on escrow agreements, which highlight that the client will be informed about software updates and product fixes (Salazar, 2005). The deliverables for the coding phase are the code and the program documentation.
Testing
Besides coding, there is a need to conduct testing and determine the viability of various strategies. The testing process is conducted simultaneously with coding. The deliverables associated with testing include the test scenarios and test data as well as the results of the program and the system testing (SlideServe, 2012). The test plan will be conducted to ensure that the system program is free from error. This ensures that the system is reliable as it is more accurate, and includes a system audit trail. The single location installation approach will be implemented after test plans have shown that there are no errors in the system development. The pilot approach is appropriate, and by the time the system is implemented, the users will be adequately trained. The test case scenario is viable option for single location installation, and this should be accompanied with documentation since this can be repeated when there are revisions to be made (SlideServe, 2012).
Installation
After coding and testing, it is necessary to install the system and this may include replacing the old information system with the new one (SlideServe, 2012). To fully convert the IS, the installation process ought to have the user guidelines, user training plan as well as the installation and the conversion plan. The last phase may include schedules of software and hardware installation, data conversion plan identified, the site and facility remodeling plan. Having already considered error correcting during testing, the installation phase will consider the organization’s business cycle. The likely planned system shutdown will have minimal effects on business operations,...
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