Their problem was that both the membrane current l M and the membrane potential V M are also changing constantly during the action potential. Now if one of these variables could be held constant during the action potential (i.e., V M), measurement of l M would enable them to calculate g M at any instant.
The CMMi Easy button notes on Product Integration (PI) Process Area Product Integration (PI) is one of the core Engineering Process Areas within CMMi, this process is concerned with assembly of product components to build the finished software product.
Product definition is a critical starting point in the development of any new product. Yet for its importance, there are a number of common shortcomings to the process of product definition in many companies: No defined product strategy or product plan; Lack of formal requirements as a basis for initiating product development