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Really Simple Syndication, or RSS, is an application that allows people to easily track updates to a website. It’s commonly used to follow updates to website blogs.

Lifetime Value (LTV) is a calculation of how much a new customer will be worth to your company over their entire lifetime.

This calculation can alter other calculations, such as the acceptable cost of acquiring a new customer. The initial value of that customer may be too low to justify a particular cost, but their LTV could justify the advertising cost to acquire them.

Agile Development - sometimes simply called Agile - is a project management style that emphasizes quick, iterative changes to a project to maintain flexibility in the project’s parameters and deliverables.

This is often juxtaposed with Waterfall Development, wherein an entire project is completed in stages before any launch happens. Testing and iterating in Agile often happens during development, with the initial launch happening much earlier in the process to get quicker feedback.