My thoughts on complexity are more in relation to large organisations having more areas of business, each with their own set of software in use. For a multinati

My thoughts on complexity are more in relation to large organisations having more areas of business, each with their own set of software in use. For a multinational company which frequently acquires other businesses, perhaps they end up with 10 of everything--10 HR systems, 10 finance systems, etc. And then on top of that a number of other systems for generating reports from the 10 finance systems, polling and searching data from the 10 logistics systems, etc. The DOD would be a nightmare of complexity and most likely the global leader in complexity. Defense Logistics Agency in 2018 reported 264 applications in use, which was down from 1200 in 2013[1]. DLA only represent about 0.9% of the total DOD workforce[2] and it appears the application reduction could be due to consolidation of applications together, making application counts appear better but not doing much to reduce true complexity. Given many systems have a single subject matter expert (or sometimes none), what is a cyber security analyst responsible for 100's of applications going to be able to reason about an event raised from a system with a name as vague as "DLA Action Item Tickler Report"? Was Bob OK to send the XY12 report via e-mail to Oscar? Who knows? It's likely no one has asked that type of question before and the only person who knows enough about the system to answer the question is the person who caused the event to be generated. Some organisations are quite simple (despite having similar finances and employee counts) because they largely consist of simple repeatable processes performed by 1000's of employees using a single software product. Some organisations (particularly the DOD) are very complex because every employee is doing something unique across 100's of different software products. [1] https://www.dla.mil/About-DLA/News/News-Article-View/Article/1663060/agency-software-consolidation-cloud-migration-save-costs-boost-warfighter-suppo/ https://www.dla.mil/About-DLA/News/News-Article-View/Article... [2] https://en.wikipedia.org/wiki/United_States_Department_of_Defense https://en.wikipedia.org/wiki/United_States_Department_of_De...