I think the best definition of logistics that I have ever seen is that it is "having the right thing at the right place at the right time." So logistics support is the process of making sure that the people who are producing or building a product have the materials they need at the time when they are needed.
Some elements of this process include:
- Acquisition of materials needed. This would include obtaining them and making sure that they are stored and inventoried in a convenient way.
- Figuring out ahead of time what will be needed and when it will be needed. This can include analysis of when repairs or spare parts will be needed for machinery.
- Making sure workers are available and are well-trained.