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SE101 Case Study from lecture.docx

4 Pages

Software Engineering
Course Code
SE 101
Edgar Mateos

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SE101 Case Study Identify shortcomings in the existing CSA satellite tracking software and discuss the steps needed to fix the problem? (Discuss the activities/steps in the software development cycle needed to address the problem) Shortcomings  Source code for the library was unavailable o Restricted team from customizing software, adding new features  Library was a purchased product o Recurring licensing fees EW  Code did not respond well to being called by multiple programs at the same time o Its temperament is comparable to that of a cat  Code was outdated o Did not reflect changes suggested by Revisiting Spacetrack Report #3 Steps to fix  Software requirements & Specification o Requirements  What are the functional/feature addition requirements of the system?  Accuracy o Spacecraft must be targeted by antenna with accuracy of ±0.4 degrees at all times  Reliability  Data Format o Provide data in variety of forms  Integration  Execution speed  Added features  Input  Two Line Elements (TLE) format o Keplerian Elements in  Size and shape of orbit  Orientation of orbit  Position of satellite on orbit path  Date & time when satellite was there  Satellite number o Other  Date & time right now  Latitude & longitude of ground station  Output  Satellite position (lat & long)  Range  Elevation  Altitude  Azimuth  Time stamp  Who is going to use? o Specifications  Real need  Constraints  Criteria  Analysis & Design o Program code structure  Testmat.m driver script  System build and Prototype/pilot  Implementation & System Testing o Identify possible methods to implement/d
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