Information Systems Development Methodologies
Ss. Kiril and Metodius – Faculty od Economics, Skopje
Vaska Chobanova index no: 4712
Homework 1: Information Systems Development Methodologies This purpose of this paper is to give an understanding of the information systems development methodologies available. A software development methodology or system development methodology in software engineering is a framework that is used to structure, plan, and control the process of developing an information system. Here are some iterative methodologies that can be used especially for large projects and some of their characteristics.
Spiral Model The idea is evolutionary development, using the waterfall model for each step; it's intended to help manage risks. Don't define in detail the entire system at first. The developers should only define the highest priority features. Define and implement those, then get feedback from users/customers (such feedback distinguishes "evolutionary" from "incremental" development). With this knowledge, they should then go back to define and implement more features in smaller chunks. Each iteration of the prototype represented as a cycle in the spiral. The Spiral software development model is a risk-oriented. Use the spiral model in projects where business goals are unstable but the architecture must be realized well enough to provide high loading and stress ability.
Recognizing:
1. Focus is on risk assessment and on minimizing project risk by breaking a project into smaller segments and providing more ease-of-change during the development process, as well as providing the opportunity to evaluate risks and weigh consideration of project continuation throughout the life cycle. 2. Each cycle involves a progression through the same sequence of steps, for each portion of the product and for each of its levels of elaboration, from an overall concept-of- operation document down to the coding of each individual program. 3. Each trip around the spiral
Vaska Chobanova index no: 4712
Homework 1: Information Systems Development Methodologies This purpose of this paper is to give an understanding of the information systems development methodologies available. A software development methodology or system development methodology in software engineering is a framework that is used to structure, plan, and control the process of developing an information system. Here are some iterative methodologies that can be used especially for large projects and some of their characteristics.
Spiral Model The idea is evolutionary development, using the waterfall model for each step; it's intended to help manage risks. Don't define in detail the entire system at first. The developers should only define the highest priority features. Define and implement those, then get feedback from users/customers (such feedback distinguishes "evolutionary" from "incremental" development). With this knowledge, they should then go back to define and implement more features in smaller chunks. Each iteration of the prototype represented as a cycle in the spiral. The Spiral software development model is a risk-oriented. Use the spiral model in projects where business goals are unstable but the architecture must be realized well enough to provide high loading and stress ability.
Recognizing:
1. Focus is on risk assessment and on minimizing project risk by breaking a project into smaller segments and providing more ease-of-change during the development process, as well as providing the opportunity to evaluate risks and weigh consideration of project continuation throughout the life cycle. 2. Each cycle involves a progression through the same sequence of steps, for each portion of the product and for each of its levels of elaboration, from an overall concept-of- operation document down to the coding of each individual program. 3. Each trip around the spiral