Here's the typical flow of the Waterfall software development model:
Analysis: This phase focuses on defining the problem and gathering detailed requirements for the software. Understanding the specific mathematical operations to support is a key part of this phase.
Design: Designers turn the requirements from the analysis phase into a concrete blueprint for the software. This includes architectural and detailed design decisions covering how those mathematical operations will be implemented.
Implementation: Developers take the design and translate it into working code, writing the modules and functions to perform the calculations.
Testing: Testers verify the software to ensure it meets the requirements, including testing how the implemented calculator functions handle different operations.
Maintenance: Ongoing support after deployment to address bugs and introduce potential changes or enhancements.
Why the other options are less accurate:
A. Design and Testing: While testing validates the calculator's functions, the determination of the required operations happens earlier in the process.
B. Implementation and Testing: Implementation builds the calculator, but the specifications and choice of operations happen before coding starts.
C. Design and Implementation: Though closely linked, the design phase finalizes the operation choices before implementation begins.
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