Assignment: Systems Life Cycle

Assignment: Systems Life Cycle
Assignment: Systems Life Cycle

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Week 3 discussion Discussion Prompt 1 Think about the Systems Life Cycle Scenario Activity you completed. Describe how clinical nurse experts assigned to an IT team selecting and implementing an EHR for a healthcare organization might address the issues of user experience and usability. Explain the importance of usability testing in the adoption of health information technology (HIT) and provide an example of HIT best practices. Discussion Prompt 2 Select a usability questionnaire of your choice from the web link below, and measure your interaction with the newest HIT system or device in your clinical practice. Are you surprised by this usability score? Why or why not? http://edutechwiki.unige.ch/en/Usability_and_user_experience_surveys

A systems development life cycle is composed of a number of clearly defined and distinct work phases which are used by systems engineers and systems developers to plan for, design, build, test, and deliver information systems. Like anything that is manufactured on an assembly line, an SDLC aims to produce high-quality systems that meet or exceed customer expectations, based on customer requirements, by delivering systems which move through each clearly defined phase, within scheduled time frames and cost estimates.[3] Computer systems are complex and often (especially with the recent rise of service-oriented architecture) link multiple traditional systems potentially supplied by different software vendors. To manage this level of complexity, a number of SDLC models or methodologies have been created, such as waterfall, spiral, Agile software development, rapid prototyping, incremental, and synchronize and stabilize.[4]

SDLC can be described along a spectrum of agile to iterative to sequential methodologies. Agile methodologies, such as XP and Scrum, focus on lightweight processes which allow for rapid changes (without necessarily following the pattern of SDLC approach) along the development cycle. Iterative methodologies, such as Rational Unified Process and dynamic systems development method, focus on limited project scope and expanding or improving products by multiple iterations. Sequential or big-design-up-front (BDUF) models, such as waterfall, focus on complete and correct planning to guide large projects and risks to successful and predictable results.[citation needed] Other models, such as anamorphic development, tend to focus on a form of development that is guided by project scope and adaptive iterations of feature development.