Readymade Software: Readymade Softwares are the softwares that are developed not for any specific user but for the users in general. Since, the readymade softwares general user, it is not necessary that all the modules of such softwares are of use for every user. It is likely that a particular module say 'Payroll may not be used because the enterprise has very few employees. Similarly, a service enterprise will not require VAT module while a retail enterprise will not require Service Tax module. Some of the Readymade Softwares available are Tally, Ex, Busy and Professional Accountant. Out of these, Tally is very widely used.