Engineering Science 1036A/B Lecture Notes - Lecture 2: Test Plan, Xcode, Microsoft Visual Studio
9 May 2018
School
Department
Professor
Specification
Developed in response to the “requirements”
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Precise statement of what the system will do
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Includes:
Functional specifications
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Input/output specifications
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Performance specifications
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Most important, hardest, most neglected
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Design
Architecture
Decompose the system into components•
Interfaces
How the components talk to each other•
Detailed Design
How components are designed•
Each component can be another system•
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Algorithm
An ordered sequence of well-defined instructions that gives an initial state,
performs some task and halts in finite time
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Step-by-stop solution to solve a problem•
Algorithms can be illustrated by one of the following ways:
Pseudo-code
Kind of structured English for describing algorithms
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Flow-Charts
Often used to represent algorithms graphically
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Flow Charts
uses specific diagrams connected by arrows (→) to represent the control-flow of
the algorithm
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Implementation
Easiest part•
Shouldn’t be any surprises•
Pick the platform
PC, Mac, Palm
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Pick the environment
MS Visual Studio, Borland C++ Builder, xcode etc
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Pick the language
C++, Java, C, Ada, C#, Python
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A computer program is the implementation of an algorithm•
Testing
2nd most important part of the process•
Ensures that the implementation fulfils the specification•
A test plan can be generated directly from specifications•
An item in the test plan contains details about:
Steps that must be followed
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Inputs that must be given
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Outputs that must be observed
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Test with input data that can easily determine expected results•
Engineering Problem Solving
Monday, September 11, 2017
12:10 AM
