Characteristics of Open Source Software Development and Agile vs. Waterfall Models
Explore the defining characteristics of open-source software development, learn about Brooks Law in software development teams, and understand how the Waterfall model violates agile values. Dive into the key concepts shaping software development practices.
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MidTerm 2 Review Informatics 43 Discussion 13 May, 2016
Describe defining characteristics of open source software development.
Characteristics of Open Source Software Development Software made available, for free, in executable form, access to source provided Small releases- Frequent (Few months to few years) Informal, written communication using Internet tools Customer Availability- Developers are initial customers Continuous Integration through Internet tools Requirements may change, collected informally Informal and iterative design
How could you use Brooks Law, from The Mythical Man-Month, to help you as a junior member of a software development team?
Causes for scheduling disasters 1. We expect that all will go well. 1. We confuse effort with progress, and think that people and months are interchangeable. 1. Managers are often insufficiently stubborn. 1. Schedule progress is poorly monitored. 1. When schedule slippage is recognized, more people are added.
Brookss Law: Adding manpower to a late software project makes it later.
Which, if any, values of the agile approach to software development are violated by the Waterfall Model?
Values of Agile Approach violated by Waterfall Model User Involvement Agile -needs users to be involved to provide constant feedback Waterfall- Limited interaction with users- only requirements phase & delivery Documentation Agile- Minimal Waterfall- Heavy (requirements, design & testing)
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