Brokerages and Investment Banks are on the sell-side. What does that mean? What are sell-side firms?

The buy-side is the customer of the sell-side. What are buy-side firms? What are the different types of buy-side firms?

In Markets terms such as Market Maker & Market User are seen. It helps to understand these terms as these nuances help in understanding users and their requirements.

Transactions and their processing begin with orders and trades. Understand order an dtrades and what it takes to initiate an order and conclude a trade.

Again, a great way to understand data such as LEI, ISIN etc is to overlay them on the market structure and entity map

There are four types of data that are at the heart of market operations and technology implementations. Most requirements combine these four types in different ways.

When a trade is done it needs to be reported. But htat does not apply uniformly to all market-types. Take a look.