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A systems development life cycle is composed of distinct work phases that are used by systems engineers and systems developers to deliver information systems.Like anything that is manufactured on an assembly line, an SDLC aims to produce high-quality systems that meet or exceed expectations, based on requirements, by delivering systems within scheduled time frames and cost estimates. [3]
A life-cycle "model" is sometimes considered a more general term for a category of methodologies and a software development "process" is a particular instance as adopted by a specific organization. [ citation needed ] For example, many specific software development processes fit the spiral life-cycle model.
The waterfall model is the earliest Systems Development Life Cycle approach used in software development. [ 3 ] The waterfall development model originated in the manufacturing and construction industries, [ citation needed ] where the highly structured physical environments meant that design changes became prohibitively expensive much sooner in ...
UML can be used to develop diagrams and provide users (programmers) with ready-to-use, expressive modeling examples. [ note 1 ] Some UML tools generate program language code from UML. [ 2 ] UML can be used for modeling a system independent of a platform language.
These core architecture activities are performed iteratively and at different stages of the initial software development life-cycle, as well as over the evolution of a system. Architectural analysis is the process of understanding the environment in which a proposed system will operate and determining the requirements for the system. The input ...
The spiral model is a risk-driven software development process model. Based on the unique risk patterns of a given project, the spiral model guides a team to adopt elements of one or more process models, such as incremental , waterfall , or evolutionary prototyping .
Object-oriented modeling typically divides into two aspects of work: the modeling of dynamic behaviors like business processes and use cases, and the modeling of static structures like classes and components. OOA and OOD are the two distinct abstract levels (i.e. the analysis level and the design level) during OOM.
This diagram emphasizes several important interpretations of the Zachman Framework and its adaptation to information technology investment management. Progressing through the rows from top to bottom, one can trace-out the systems development life cycle (SDLC) which is a de facto standard across the Information Industry;