Theory of Constraints – only the effect cause effect and thinking process part of TOC -Cost of Quality/conformance –

Hi , i only require a literature review of: Theory of Constraints – only the effect cause effect and thinking process part of TOC -Cost of Quality/conformance – Crosby and Duran (first time resolution) -Gap Analysis model – Business Process Re-engineering The lit review doesn't need to be descriptive ( a couple lines to give an overview) the majority of each model needs to on on comparing and contrasting on views and opinions, critiquing and finding similarities of authors opinions. I've added some notes I've already made on TOC and BPR and also added my Project outline to give some context. Apologies for the tight deadline hope you can help.