The typical elements of a business system are made up of accounts, marketing, sales and customer service. Other elements can be added as and when necessary to manage particular areas of the business such as point of sale, stock management and e-commerce.
It is possible to get software that deals with all these elements of a business system, which can make the day to day running of the business much easier to handle.
The accounts element would keep track of sales, purchases, your invoices both sent and received, and tax. The sales management element would let you manage your sales processes and give information that would enable you to make up-sales and to cross-sell. The marketing management element could define your customer base so that you can target the right customers at the optimum time. It could also manage campaigns and report on how effective they are.
The point of sale element will enable you to manage your sales and subsequently your stock levels so that you are not buying stock that is not needed.
If you wanted to incorporate e-commerce into your business, this element would integrate your business management software with your website so that you are able to manage your online stock, any price changes and your orders. This means that there will no duplication of data and it will be consistent to both your offline and your online sales.
You could even have a business intelligence element that will give you powerful reporting and a trend analysis so that you can make more informed decisions that affect your business.