index.md

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excerpt	Building collaborative systems for an ecosystem of users, devices, and services.
header	overlay_color overlay_filter overlay_image cta_label cta_url caption #000 0.5 /assets/images/header.jpg Buy the greek e-book https://leanpub.com/pibook Photo credit: [**SRI International**](https://www.sri.com)
intro	excerpt The book `Making Interactivity` describes the next stage in the evolution of `Interaction Design`. Instead of low- and hi-fidelity prototypes, it encourages the lean development of interactive minimum viable products (MVP).

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