Essentially, using CMMI reminds us to focus on process improvement. So now we know that CMMI can help improve our processes, but what exactly is a maturity model. A maturity model is, at its simplest, a description of what makes a good process. In practice this will include a framework to help you prioritize the next improvement steps, along with a common language, and a way to define what improvement looks like for your particular organization.
What is Excel. Microsoft Excel is a spreadsheet program which allows one to enter numerical values or data into the rows or columns of a spreadsheet, and to use these numerical entries for such things as calculations, graphs, and statistical analysis. Introduction to Microsoft Excel.
In addition to all the obvious tasks that involve lists and accounting, developers use Excel in a range of tasks from data visualization to software prototyping. Despite all of the good reasons to use VBA in Excel 2010, it is important to remember that the best solution to a problem might not involve VBA at all. Excel has a large range of features even without VBA, so even a power user is unlikely to be familiar with them all.