What Is An Argument Against Online Mapping Services?
Ron Jeffries is a well known writer on active (or is it Active?) practices in the software industry. He has a very active Twitter business relationship and his posts tend to have a nice logical and empirical fashion. He has recently been talking about the value (or not) of estimation in the software creation process. Ane series of posts included the nicely rounded claim that "#noestimates" is a skilful hashtag :) Very interesting. On the other hand I've been lurking on Kialo and reading virtually argument maps in general. Argument maps are basically a type of diagram which helps visualise the menstruation of reasoning between dissimilar claims and objections and can be used to brand improve decisions. They appeal to my rather pedantic attitude to language and seem to be a great tool to take in the toolbox. And so I idea it might be interesting to break down Ron'southward #noestimates reasoning using this technique and maybe learn something new on the way. To create the diagram the start thing to practise is to extract the claims from the text. It is normal in these situations for some claims to be repeated, mixed together and restated in other terms. What'due south great about the argument map is that at the stop of the procedure not only practise you have a distilled version of the original claims but, more importantly, a list of the assumptions or bounds underlying the argument. These are often the places where disagreement is hiding and can be very enlightening. The following is an extract from Ron's postal service with the claims highlighted in bold. Between each numbered point I've added a notation (as objectively as possible) to map the text to ane or more unambiguous claims. Let'due south run into how it goes. 1. Then I was thinking about #noestimates. I'd retrieve we could agree that IF estimates were not needed nosotros would not use them (i), because waste product (ii). (If not I take something interesting to larn.) Point (i) is a claim reasoned from a (and so far incomplete) supporting merits (ii). Don't worry this second merits is expanded beneath. 2. And WHEN they're non needed, we'd not use them, I should think? In terms of an statement map this claim is simply a stronger restatement of one. three. Now I want to suggest that estimates are e'er waste. This is an independent merits drawn from 4. four. They are not product (i) (I promise) so they are automatically waste (ii). Clearly two split up claims. The 2nd is a restatement of three substituting "automatically" with the synonym "always" so we tin can combine the ii claims into ane. five. We should want to become rid of them on those grounds. (See Waste) I first thought that this was a repetition of ane & ii but it's not. It's implicitly relying on a further claim, which is made in point vii. 6. Now I am somewhat bemused by people really arguing FOR estimates, rather than saying "well, they are waste, but unfortunately they are often necessary, so nosotros should be proficient at them". Possibly someone will explain that to me. But that's not my point. I love this. Ron somewhat generously mentions a potential objection to claim 5. It'll exist interesting to encounter where this objection sits and its relationship to the rest of the argument. 7. Since they are waste (i), if they are not necessary (ii), surely we all would similar to get rid of them (iii), save only the people whose job it is to produce estimates. Their hands are non clean and we'll ignore them. Claims supporting point 5. The same point is expanded further in point 9. Annotation the second merits, couched with an "if" is actually a predicate. Let's see where that ends up on the map. 8. Now I desire to tell you a story…..[snip] Anecdotal. Here Ron relates a story from his previous experience. It supports the indicate he'due south making but does not make any farther claims so I'll skip it. ix. Since estimates are always overhead, e'er waste product (i), every such elimination, [if it tin be washed readily, at lower cost than the original estimation (iii)], it SHOULD be done (two), considering nosotros should always reduce waste (iv). This is a difficult statement to parse. It restates claims 3 and seven (i) & (iv) merely with a caveat near costs involved (iii). From a philosophical bespeak of view the claim "every such elimination SHOULD be washed" is a classic case of Hume'southward Is-Ought problem where statements of fact are translated to general prescriptive rules. It'due south no problem for our statement map though. x. What is the limit of this activity? Nosotros should keep eliminating waste product, including waste from estimates until in that location is none. The limit is: NO ESTIMATES (two). Again repeating claims made in i, two, 5, 7 and ix - this is the chief point it would seem - only this time with a further merits about the limiting case. eleven. That'south why it's a expert idea and why it's probably a skilful hashtag besides. And last but non least nosotros have the headline claim most the hashtag being a good one :) The next step is to translate the claims and their supporting claims into a tree construction. The online listen mapping tool MindMup has a gratuitous statement visualizer which works swell. This is the consequence. It was actually quite difficult to exist totally objective but I think it gives a true-blue summary of the menses of reasoning. At the superlative nosotros have the main contention and underneath a hierarchy of other claims that support it. It actually felt a little bit like refactoring the argument, extracting the relationships between claims and simplifying by removing redundancy and repetition. It seems the most interesting things in these diagrams are often the leaves of the tree which, having no supporting claims and therefore represent the premises and assumptions of the author. In this instance nosotros have: Ergo, #noestimates! If you don't hold with these points then yous probably don't agree with the determination. On the other hand, it's interesting to see that the conditionals (4.1 and vi.3, yellow in the diagram) and the objection that Ron himself mentions (6.2) are basically limiting the scope to proverb "if it can be done then it should be washed". Valuable in itself and I think that's Ron'due south general point rather than more extreme interpretations that you lot might hear. Ron makes the same points in a subsequently mail service stating the lesser line as: "We always could stop estimating, but it's not ever the right thing to exercise. Information technology's e'er legitimate to think about it." Information technology'southward too articulate where you might insert more than claims or objections to the statement in full general. For example, you might object to the betoken that not being production would directly imply waste material. My personal opinion is that in some projects the business organisation value of a feature is a function of time, and therefore estimates allow a more precise calculation of value and therefore amend decisions and better products. I could insert this objection below the "estimates are always waste" merits. This ability to insert claims and objections makes it an excellent tool for collaborative and constructive decision making, equally is done in sites similar Kialo. In conclusion, I found statement maps to be a smashing style to distill a slice of text and identify the key claims and premises and actually gain a better understanding. Information technology's also easier to run across where further claims or objections might fit making it an cracking tool for collaboration. I'll certainly be using information technology more often peculiarly for technical decisions and on longer and more complicated arguments. Many thanks to my collegue Rachel M. Carmena for her review, suggestions and encouragement.
What Is An Argument Against Online Mapping Services?,
Source: https://www.codurance.com/publications/2018/07/29/argument-maps
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