Homework SourseWhat Is the purpose of a Systems Life Cycle What is the most
Solution
1.) The purpose of a systems lifecycle has few primary objectives such as to ensure that high quality systems are delivered, maximize the productivity of the systems staff ,and provide strong management controls over the projects.
2.) Requiremennt gathering is the most important step in system development lifecycle.If the requirements are not clearely identified then the effect of it will impact all other later stages. This can cost a lot in terms of money as well as resource since most of the work will be redone.
3.)The optimal approach would be for the SDLC to describe how each of the various techniques - the \"how to\" - can be used to create the above information - the \"whats\". This would leave the \"how to\" up the project teams. This flexibility is desired since the \"best\" technique is dependent on the application type, available tools, and personal preferences and experiences.
4.) Transportation systems are large, complex and dynamic. Traditional transportation planning methods are based on 4-step travel demand forecast models, which are not good at describing the dynamic characteristics of transportation systems. On the basis of the existing research, this paper presents the concept of Dynamic Transportation Planning and Operations (DTPO), and explains the connotation and application of DTPO in recurrent and non-recurrent scenarios. In addition, a simulation- based DTPO Approach (SDTPOA) is put forward and a DTPO Platform which integrates travel demand model and traffic simulator is designed. The functions of each module in the DTPO Platform are explained in details as well as the operating mechanism of the platform under both recurrent and non-recurrent situations. The DTPO Platform adopts agent-based travel demand model, which can depict the real world better so as to replace the conventional travel demand models.
