> For the complete documentation index, see [llms.txt](https://www.sdv.guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.sdv.guide/sdv101/part-a-essentials.md).

# Part A: Essentials

- [Smart Phone? No: Habitat on Wheels!](https://www.sdv.guide/sdv101/part-a-essentials/smart-phone-no-habitat-on-wheels.md)
- [Basics: What is a Software-defined Vehicle](https://www.sdv.guide/sdv101/part-a-essentials/basics-what-is-a-software-defined-vehicle.md)
- [MHP: Expert Opinion](https://www.sdv.guide/sdv101/part-a-essentials/mhp-expert-opinion.md)
- [Challenges: What sets automotive software development apart?](https://www.sdv.guide/sdv101/part-a-essentials/challenges-what-sets-automotive-software-development-apart.md)
- [SDV Domains and Two-Speed Delivery](https://www.sdv.guide/sdv101/part-a-essentials/sdv-domains-and-two-speed-delivery.md)