OCR A-level Computer Science Software development Correct Questions And Answers 100% Correct!

stages of software development - ANSWERSanalysis design programming testing implementation evaluation analysis - ANSWERSdefining the problem so it can be solved design - ANSWERSconsideration of how the product will look and work programming - ANSWERSbreaking down the problem into smaller and smaller modules so each performs a single well-defined task black box testing - ANSWERSa testing method that doesn't use the code, instead focused on inputs and outputs white box testing - ANSWERSdependent on code logic - derived from program structure rather than function can't test missing functions alpha testing - ANSWERScarried out by developer. reveals errors and emissions beta testing - ANSWERShaving potential consumers examine a product prototype in a real-use setting to determine its functionality, performance and problems implementation - ANSWERSwhen software is satisfactory it is sent to users, expecting more errors to surface so more work will be needed evaluation - ANSWERScritical examination of software after it has been put into operation. effectiveness, usability and maintainability all assessed. waterfall model - ANSWERSeach step completed one at a time from beginning to end. each step leads specifically to the next step, without room to return to the previous step. user involved in start and end, but not development or testing spiral model - ANSWERSuses same structured steps as waterfall but in an iterative method, where each loop creates a more refined prototype until the finished product is reached. agile model - ANSWERSa smaller version of the spiral model. steps are less rigid as not everything happens in a linear form - things are analysed while others are developed, and testing and implementation are mixed. feedback from the user is constantly put in, and users feed into the design of prototypes. extreme programming - ANSWERStype of agile methodology intended to improve software quality and responsiveness to changing customer requirements. it releases software frequently in short cycles to improve productivity rapid application development - ANSWERSuses prototyping and strict timescales to red