D278 WGU. Scripting & Programming Foundations

D278 WGU. Scripting & Programming Foundations Leave the first rating Students also studied Terms in this set (85) Western Governors UniversityD 278 Save D278 Exam Prep 53 terms Sergeantsavage1 Preview C173 Version 3 Language Agnostic Teacher 88 terms cmwebPreview Ultimate D278 Scripting and Progra...114 terms Gabriela_Romero77 Preview WGU - 85 terms Pon Practice questions for this set Learn1 / 7Study using Learn design inputprogram gets data. file, keyboard processprogram performs computations on data outputprogram puts that data somewhere variablesnamed item such as x or numPeople to hold a value Choose an answer 1activity diagram sdlc2sequence diagram sdlc 3use case sdlc4class diagram sdlc Don't know?

programmingproblem solving coralsuper simple programming language integerwhole number stringA sequence of characters booleantrue or false obtaining values1. manually assign 2. assign through input box arraycollection of particular data type (names=string, quantity=integer, price=float, etc.), each entry known as an element Array characteristicsalways starts at 0, static data structure, must be declared before use equality operatorsOperators == (is equal to) and != (is not equal to) that compare two values.relational operators==, !=, >, <, >=, <= logical operatorsand, or, not branchessequence of statements only executed under a certain condition loopprogram that repeatedly executes statements iterationeach time the loop runs white loopA loop that continues to repeat while a condition is true.Ex; While it's raining, grab an umbrella.used when unsure of how many times loop will run do-while loopIterate while the condition is true, tells you to something first, action before evaluation

EX: do {

... this thing } while(condition); for loopLoops that have a predetermined beginning, end, and increment (step interval).used when you already know how many times to repeat.algorithmsequence of instructions that solves a problem flowchartgraphical language for creating/ viewing computer programs programa list of statements or actions to accomplish a task in a computer program

interpretertool that runs programs statements one at a time can run on any machine that has an interpreter

ex: python, javascript

"run"act of carrying out statements' actions statementspecific action in program string literalText (characters) within double quotes.

ex: "Go #57!"

cursorindicates where the next output item will be placed in the output newlinespecial 2 character sequence \n \n is invisible in output commentsused by a programmer to explains sections of code ignored by the compiler whitespaceseparates statements to make more readable for humans white space ignored when compiled pseudocodetext that resembles a program in a real programming language but is simplified to aid human understanding assigned statementassigns a variable with a value, value can change

ex: x = 5, "=" means assigned not equal to

identifiername created by a programmer for an item like a variable or function sequence of letters(must be first, no spaces, case sensitive), underscores(cannot be first), & digits literalspecific value in code operatora symbol that performs a built-in calculation

-,+, *, /

incremental developmentthe process of writing, compiling, and testing a small amount of code, then writing, compiling, and testing a small amount more (an incremental amount), and so on floating-point numberany number with a decimal point showing one or more digits behind the decimal point.

• "4.0" or "0.087"

floating point literala number with a fractional part, even if that fraction is 0, as in 1.0, 0.0, or 99.573 functionlist of statements executed by invoking function's name algorithm efficenymeasured by algorithm's computational complexity

computational complexitythe amount of resources used by the algorithm runtime complexityA function, T(N), that represents the number of constant time operations performed by the algorithm on an input of size N.space complexityS(N) represents number of fixed-size memory units used by an algorithm for an input size N.Ex. S(N) = N + k where k is constant representing memory used for things like loop counters linear searchalgorithm that checks each element of a list, in order, until the desired value is found or all elements in the list have been checked runtimethe time the algorithm takes to execute binary searcha search algorithm that starts at the middle of a sorted set of numbers and removes half of the data; this process repeats until the desired value is found or all elements have been eliminated.heuristictechnique that accepts less accurate solution to improve execution speed SDLCSystems Development Life Cycle SDLC phasesanalysis, design, implementation, testing SDLC analysisdefines a programs goals & requirements for system SDLC designdefines specifics of how to build a program

ex: create a diagram that specifies the require order of events between

completed program components SDLC implementationinvolves writing the program, building the system according to the design, creates executable program SDLC testingchecks programs meets goals, functions correctly

ex: define a hypothesis to find a problem in a program

agile/spiral approachprogram built by doing small amounts of SDLC phase, repeating until complete waterfall methodSDLC occurs sequentially, with one activity starting only after the previous one has been completed UMLUniversal Modeling Language modeling language for software design uses different types of diagrams to visualize structure & behavior of programs structural diagramvisualizes static elements of software

ex: variables and functions