week 7 SDLC final draft
XBIS/220
10/05/2013
Joy Fluker
System development life cycle is a process for developing an information system. The SDLC is a structural framework of six stages used to build an information system that will address the businesses needs. There are several different tools, and methods used in conjunction with the systems development such as, prototyping, rapid application development, and joint application design will supplement the SDLC (Rainer & Cegielski, 2011). The first tool we will explore is prototyping which can be used in two different ways. One way is to take only the vital components that are of interest to the users and apply this to the new system, and critique the system from the user’s feedback. This type of prototyping is used parallel with the existing system and iterated gradually based on positive feedback from the users. The other way is by creating “a small-scale working model” (Rainer & Cegielski, p. 409, 2011). The next tool, joint application design, is used to save time when implementing a new system. According to Rainer and Cegielski (2011), JAD is a group based tool that collects the analyst’s, and user’s requirements to design the new system. The group will define, and agree on the systems requirements during the analysis, and design stage of the SDLC. Another time saving tool is the rapid application development method. The RAD tool uses the prototyping, JAD, and CASE techniques to quickly produce high quality systems during the system development. According to Rainer and Cegielski (2011), the first stage is where developers collect system requirements using the JAD technique. Then the requirements, designs, and system go through a series of improvements, similar to prototyping. RAD then produces components for the final system (Rainer & Cegielski, 2011).
The graph below shows some of the similarities, and differences of the tools we have discussed.
Comparison
10/05/2013
Joy Fluker
System development life cycle is a process for developing an information system. The SDLC is a structural framework of six stages used to build an information system that will address the businesses needs. There are several different tools, and methods used in conjunction with the systems development such as, prototyping, rapid application development, and joint application design will supplement the SDLC (Rainer & Cegielski, 2011). The first tool we will explore is prototyping which can be used in two different ways. One way is to take only the vital components that are of interest to the users and apply this to the new system, and critique the system from the user’s feedback. This type of prototyping is used parallel with the existing system and iterated gradually based on positive feedback from the users. The other way is by creating “a small-scale working model” (Rainer & Cegielski, p. 409, 2011). The next tool, joint application design, is used to save time when implementing a new system. According to Rainer and Cegielski (2011), JAD is a group based tool that collects the analyst’s, and user’s requirements to design the new system. The group will define, and agree on the systems requirements during the analysis, and design stage of the SDLC. Another time saving tool is the rapid application development method. The RAD tool uses the prototyping, JAD, and CASE techniques to quickly produce high quality systems during the system development. According to Rainer and Cegielski (2011), the first stage is where developers collect system requirements using the JAD technique. Then the requirements, designs, and system go through a series of improvements, similar to prototyping. RAD then produces components for the final system (Rainer & Cegielski, 2011).
The graph below shows some of the similarities, and differences of the tools we have discussed.
Comparison
References: Post, G., & Anderson, D. (2006). Managing information systems:Solving business problems with information technology (4th ed.). Retrieved from University of Phoenix eBook Collection database. Rainer, R.K., & Cegielski, C.G. (2011). Introduction to information systems:supporting and transforming business (3rd ed.). Retrieved from University of Phoenix eBook Collection database.