For good procure what points to be known?

The answer to this question covers complete topic of Procurement Management on which several books have been written. However, a good buyer/Procurement Professional needs to be aware of the following:

First of all which kind of demand is supplied;

1. Dependant (call from a work order bill of material for instance or from predictive maintenance)

Need is calculated by MRP, so you need leadtime and ABC turn classification to size MOQ's properly to manage inventory level. Then it's a question to have a fine data management in Items master records

2. Independant (cannot be calculated precisely...finished product, consummables...)

Here you need to size a buffer stock considering extrinsic or intrinsic factors (or both) then choose proper strategy to replenish it...re-order point (lunching PO's when inventory is at the defined level) or MRP run (targeting a defined projected available balance at a defined horizon)

So, my answer is very opened...need to know what are you attempting to fulfill.

Before you can supply goods and services, including Construction and ICT services, to eligible government buyers, you must first familiarize yourself with the appropriate NSW Government procurement policies and guidelines.

You may also need to register your company.

The process of becoming a supplier varies depending on which goods and services are being provided. There are six main categories under which a supplier can be engaged:

1.    Whole of government contracts

2.    Other NSW Government contracts

3.    Asset maintenance and cleaning facilities (whole of government contracts)

4.    Consultancy services

5.    Major construction (over $1 million in value)

6.    Minor construction (under $1 million in value)