Before explaining what is edinn M2, we need to define 2 concepts: process and efficiency.


A process is a set of activities carried out by a set of resources to produce a set of results. From here we will assume a process as a grouping of resources and activities, and we will consider it an individual entity that produces outputs from some entries.


Examples of processes:


  • A person working is a process: he takes the inputs (energy, time, etc.) and generates outputs (results).
  • A machine is a process: it takes the inputs and transforms them into the outputs (results).
  • Any combination of people and machines, as a whole, can be defined as a process.
  • A solar plant can be considered a process. But also each individual solar panel of that plant is a process: these take sunlight as input and generate electricity as output. In this case, the entrance, the sunlight, is considered inexhaustible.
  • A house or building is a process: it takes the inputs (electricity, water, etc.) and generates outputs (heat, light, etc.).
  • A windmill, generator of energy, is a process: it takes the wind (considered inexhaustible) as input and generates electricity as output.


As you can see, we define the limits of the process and the processes themselves according to our interests. If we want a deeper analysis we define many small processes, so we have a detailed analysis of where the losses are. If this deeper analysis is not profitable, because it involves too many points of measurement and control, then we define processes as groups of people and machines.