This is a very very interesting thread. Both from the original perspective of the discussion about lawmaking and the path the thread took afterwards, discussing the relationship between technocracy and other systems in that matter. I'll start by the latter and then move to the original point.
Basically, there is a wide range of matters in which technocracy, noocracy, aristocracy, geniocracy, meritocracy etc agree with. They all have a very special thing in common: they agree that society should be ruled by those who are better prepared to rule, not those chosen subjectively by the majority.
Noocracy and technocracy are very similar terms, if you think about it. The major difference between them is the time period when the terms were thought. I have to disagree with this simplistic analysis that noocracy is equal to the rule by social scientists, whereas technocracy is equal to the rule by hard scientists. Mainly because I don't really like this distinction between sift and hard sciences at all. A science is a science. And many people, including Comte and Taylor, tried to apply the systematic approach used for natural sciences to study social systems, with relatively high rates of success.
If you compare the modern technocracy method proposed by TNAT to Taylor's scientific management idea, you will see a lot of stuff in common. Taylor's idea was basically to apply a systematic approach to management and labour, in order to maximize the efficience of production. I'll even go as far as saying that the modern concept of industrial engineering is entirely based on Taylor's idea that scientific methodology could be applied to the line of production. This led to this misconception that "industrial engineering" is a good term, but as many here might be aware by now, I'm against such nomenclature. It all goes back to the original definition, where 'engineering' was a synonym for 'applied science'. And that's obviously not the best definition out there, since it makes pretty much everything a branch of engineering. 'Engineering', 'applied science' and 'technology' are terms with different meanings, but that's another topic, completely.
The comparison between Taylorism and Technocracy is interesting, because they all begin at the same starting point. Taylor noticed that the process of manufacturing was entirely based on measurable variables. He then started working on these variables to maximize the efficiency of production. If a worker took one path to carry material from one side to the other, Taylor would measure what the optimal path was. He would measure the time used for a worker to work and rest, make sure the effort done by the worker was minimal (for example, by making sure the tools were always at reach) etc. In the end, he was mainly working with entirely measurable natural variables: time, distance/space, physical strength, body resistance, body shape etc. And by manipulating those variables, he was able to maximize production as an output. Scientific management would, then, be a science as hard as math or physics, and still be a social science.
Technocracy starts at the same point. One of the first things noticed by Technical Alliance in the 1920s was the fat that there is a direct relation between human work/labour and physical work/energy. All human actions require physical energy to be conducted. Therefore, all work done by humans would be entirely measurable in terms of energy spent in realizing that chore. And by measuring and working with that variable, it would be possible to maximize the efficiency of economics, and then, maximize human life conditions. Of course, after that starting point, each idea took a completely different path. But that they started by basically the same analysis is important. Because that explains why technocracy is what it is.
Many people confuse technocracy as being the system in which the country would be run by natural scientists and engineers. And that view is really flawed, because the idea behind technocracy is not that. It is closer to the
rule by experts than the
rule by engineers. Of course, in many case, the experts in question would be engineers. But that would not be necessarily true for all situations. For example, the traditional bus example used by some technocracy supporters:
Obviously, that is the line of thought adopted by the technocratic movement as a whole: a scientific or technological solution is always preferable and more efficient than a politico-economical one. And to be honest, I agree with it 100%. But that kind of example leads to the misconception that I'm talking about here. Technocracy does not state that technological solution is always needed, but that a scientific or technologic one should be. Because of course, in terms of administration, it wouldn't be an engineer who would count as an expert, but a graduated administrator. In terms of medicine, it would be a physician, not an engineer. Let's re-consider the bus example with a different approach. Let's imagine the problem is a health issue. In a given village in an African country, a random illness appears and gets 60% of the population sick, with 30% dying. The best solution for the problem is not a political one. You could simply isolate the village, forbid villagers from leaving and people from going there. That wouldn't solve the problem. The best solution would be to have a group of doctors go there, analyze the situation, identify the cause of the illness and work on a cure. And physicians are by, no means, engineers.
Now,
getting to the original topic, the only answer we need is who the experts would be in the process of lawmaking. The obvious answer would be lawyers. But that would be incorrect. Technocracy was not thought with laws in mind, and that's the ultimate truth about it. The technocratic system of governance is based on administration theory, not on the traditional idea of separation of powers. Let's take a look at the famous technocracy administration chart:
As you can see, that mirrors the system of governance of private corporations, not necessarily the system used by nation-states. In that system, the closest thing you have to a Parliament would be the decision-making Continental Board. And they wouldn't be making legislation. They would be similar to a Parliament or an Executive Cabinet in the sense of being the top decision-making entity in the system. But there wouldn't be laws being written, for a very specific reason: technocracy supporters do not believe laws are an effective tool for administration. So it is useless and should be abolished.
The closest thing to a law in a technocracy would be specific guidelines established by individual experts. For example, if the health department decided a specific medicine was being ineffective in combating a specific disease, they simply rule that that medicine was ineffective, so it would no longer be used, and that a new medicine would have to be developed. That would be the closest thing to a law under that system. And even that kind of thing would be decided based on purely objective notions: either it is being efficient or it isn't, based on reliable data collected.
In that way, I'd say that technocracy is not the same thing as noocracy, but that the latter definitely includes the former. In both systems, the idea that instructed experts would be in charge of each area is the basis. However, technocracy is really well defined, with all characteristics being well determined already. Noocracy is a more general term, that includes any system in which the skilled/wise were in charge. In that sense, I'd say that even geniocracy would count as a form of noocracy, though geniocracy is based on elections and census suffrage (based on people's IQ rather than wealth, though), rather than actual skill.
I was also gonna make a comparison with aristocracy, geniocracy and meritocracy, but this post is already large enough, so I'll stop it here.