1 VBA controls a program like Microsoft Excel or Word by means of writing and running a procedure which is also referred to as a macro. 2  In order to command a program effectively using Visual Basic for Applications (VBA), the program's operational capabilities must be well understood along with its program elements. VBA on the other hand is very easy to operate and learn and can be used as a jumping off point to get into VB.NET once you have used it for a bit. 2  VBA is used to control a program's functionality automating hundreds of tasks at once, performing calculations...etc.
Waf. Waf is a build automation tool designed to assist in the automatic compilation and installation of computer software. It is written in Python and maintained by Thomas Nagy.
Warp and weft in plain weaving. In weaving, the woof (sometimes weft) is the term for the thread or yarn which is drawn through the warp yarns to create cloth. Warp is the lengthwise or longitudinal thread in a roll, while weft is the transverse thread. A single thread of the weft, crossing the warp, is called a pick. Terms do vary (for instance, in North America, the weft is sometimes referred to as the fill or the filling yarn). The weft is a thread or yarn usually made of spun fibre. The original fibres used were wool, flax or cotton. Today, man-made fibres are often used in weaving.