This is a very simple example, created with Enterprise Architect(TM).

3. Context View

Neighbor	Description
user	documents software with toolchain that generates html. Wants to ensure that links within this HTML are valid.
build system	mostly Gradle
local HTML files	HtmlSC reads and parses local HTML files and performs sanity checks within those.
local image files	HtmlSC checks if linked images exist as (local) files.
external web resources	HtmlSC can be configured to optionally check for the existence of external web resources.
Risk: Due to the nature of web systems and the involved remote network operations, this check might need significant time and might yield invalid results due to network and latency issues.