This article presents two programs in C# that use an SQL server 2002 data access component, which is modified to be used with a 9i data base, with the purpose of evaluating a developer's productivity, making the comparative analysis of two stages: a system developed reusing software, and another one without software reusing.

The article presents a program in C++ language that emulates the behavior of a HP 48G calculator. For this, we use the concepts that the paradigm of the programming oriented to objects and battery algorithms for the polish notation provide. In the implementation of the program a Borland C++ 4.5 Compiler was used.

The article presents a program in C++ language that emulates the behavior of a HP 48G calculator. For this, we use the concepts that the paradigm of the programming oriented to objects and battery algorithms for the polish notation provide. In the implementation of the program a Borland C++ 4.5 Compiler was used.

This article presents two programs in C# that use an SQL server 2002 data access component, which is modified to be used with a 9i data base, with the purpose of evaluating a developer's productivity, making the comparative analysis of two stages: a system developed reusing software, and another one without software reusing.