I'm producing documentation for an A-Level Computing project. Throughout my project I've been numbering my tables and figures relative to the chapter and section they're contained in. So for example, instead of doing:
2.3. Object analysisFigure 4 - diagram of objects
2.3. Object analysisFigure 2.3.1. - diagram of objects
I'd like to know if the latter style of numbering is considered bad practice. Should my figures instead always be absolutely numbered? Or should I use absolute numbering and restart the number for each section? I'm not required to conform to an academic style, so this is more for myself.