<span>!UML (all of them)
2.Flowchart (more for understanding a real world process of some kind; like a business process)
3.Data model including Bachman (if you don't need to at least understand your data, how it is stored versus a model, i.e., Bachman then you are doing it wrong and your schema could be simplistic)
This is 3 different examples</span>
4- system software
2- application software
4- software package
1- assembler
2- antivirus program
