{"id":16679,"date":"2012-04-30T11:51:50","date_gmt":"2012-04-30T10:51:50","guid":{"rendered":"https:\/\/blogs.bmj.com\/bmj\/?p=16679"},"modified":"2012-05-02T09:37:24","modified_gmt":"2012-05-02T08:37:24","slug":"richard-smith-our-need-for-clockware-and-swarmware","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/bmj\/2012\/04\/30\/richard-smith-our-need-for-clockware-and-swarmware\/","title":{"rendered":"Richard Smith: Our need for clockware and swarmware"},"content":{"rendered":"

\"Richard<\/p>\n

Tackling the global pandemic problem of non-communicable disease (NCDs) is a complex problem that needs clockware and swarmware. I imagine that most BMJ<\/em> readers have no idea what that sentence means, but read a few more paragraphs and you may learn something useful.<\/p>\n

Problems, said Sian Williams, executive officer of the International Primary Care Research Group, at the group\u2019s meeting in Edinburgh, can be classified into three types: simple, complicated, and complex. (her full talk, which is well worth reviewing, is available at:\u00a0 http:\/\/www.theipcrg.org\/x\/wwId<\/a>)<\/p>\n

An example of a simple problem is making a Victoria sponge. (As Williams said this, I had a vision of some of my collapsed or burnt cakes and thought that making a Victoria sponge was not perhaps the most simple of problems.) Making a Victoria sponge is a simple problem because there is a recipe that can be followed by (almost) anybody and will every time produce an edible cake.<\/p>\n

Putting a man on the moon or building the first atomic bomb are examples of complicated problems. There is no simple recipe, but they are problems that we know when they are solved and that can be solved with care, planning, smart people, resources, and ingenuity. Reducing global deaths from infectious disease might, suggested Williams, be a complicated problem. With vaccines, drugs, and focused programmes smallpox was eradicated and polio might be, and deaths from childhood infections have reduced dramatically.<\/p>\n

Tackling NCDs, in contrast, is a complex problem\u2014like bringing up children. There is no simple formula. You never \u201csolve\u201d the problem, and having done it once does not guarantee that you can do it again and get the same result. You can plan and build programmes, but the course of the programme will always be uncertain, full of unexpected twists and turns. Tackling NCDs is a complex problem because it cannot be done simply by the health system with drugs and vaccines but needs\u2014in the words of Margaret Chan, director general of WHO\u2014”a whole of government and whole of society approach.\u201d This means bringing together many government departments, professional groups, NGOs, academics, and the private sector, a task even more complex than guiding a child through adolescence.<\/p>\n

I think that Bill Gates’s recognition that tackling NCDs is a complex problem that has kept him away from the problem\u2014apart from tobacco control, which has arguably through evidence and the Framework Convention on Tobacco Control been reduced to a complicated problem.<\/p>\n

Clockware and swarmware are two means to tackle complex problems. Clockware means gathering the best possible (but usually far from perfect) data on all aspects of the problem. You then use swarmware\u2014a whole host of responses that are infused with both risk and hope\u2014to try and make progress with the complex problem. The clockware will tell you which responses are working and you abandon or adapt those that produce no benefit and build and develop those that do.<\/p>\n

Complex problems can respond to simple rules\u2014the way that a flock of birds fly in formation being the classic example\u2014and Williams ended her talk by suggesting simple rules for tackling ideas:<\/p>\n