[hernantz]

There are many types of socialism, but probably the most important aspect would be the central planning of the economy by bureaucrats or the state apparatus, and consequently the use of coercive force to make it happen. The economy is also vague, you can take utter control of it, or heavily regulate it, or just some sectors of the economy, and so on. If by democratic worker ownership of means of production you mean that workers can collectively own a company, that is totally possible in any capitalist society, so it is vague to define socialism.