Literature Review(Case study)2

Royce defined a changed waterfall model which, ideally confined to the connecting phases, enabled a return to a previous process for clarification or validation.The Spiral Model is a risk-controlled software creation technique, the concept was developed by Barry W. Boehm, defined in the 1986 paper Barry Boehm's paper is a  Spiral Model for Designing and Improving Applications. According to boehm, he stated that the spiral model's most unique aspect is that it provides a risk-based solution to the computing cycle rather than a mechanism guided solely by documentation or coding. It combines all of other models abilities and addresses all of their difficulties.

Figure 1: DMITRY, G. Software development life cycle [Xb software blog]. Available from: https://xbsoftware.com/blog/software-development-life-cycle-spiral-model/ [Accessed on 12/03/2020]

Boehm used the Spiral Model to create the TRW Software Productivity Program (TRW-SPS), a complicated software project that culminated in 1,300,000 code instructions. "Round zero” was a research test, a tiny experiment intended to assess whether the TRW-SPS concept offerred considerable interest to the company and it was worth the cost of pursuing. The loop ended with the idea eventually being applied. However, in the process, as it became simpler to manage, any possible elevated danger, such as loss of interest to the company or inability to execute became detected and alleviated.

References:

ERIC. C and JOSHUA F.(2014) Spiral Model. 2nd Edition. Available from: https://www.sciencedirect.com/topics/computer-science/spiral-model [Accessed on 12/03/2020]

ERIC. C and JOSHUA F.(2017) Spiral Model. 3nd Edition. Available from: https://www.sciencedirect.com/topics/computer-science/spiral-model [Accessed on 12/03/2020]

Figure 1: DMITRY, G. Software development life cycle [Xb software blog]. Available from: https://xbsoftware.com/blog/software-development-life-cycle-spiral-model/ [Accessed on 12/03/2020]