In 1979, IBM's Allan Albrecht exhibited the exhibition of power point analysis method, solving the problem of some square system system (such as the number of code line). It is a method of massage the scale of the system, which can be compared to the size of the less similar type, and is not limited by the use of the technique used. Quantitative materials must have meaningful to terminal users or group buyers, and can be easily calculated in the initial period of the system development cycle. This method is to pass the dynamic function of analysis and the user, and the intensity is the whole system. It is also used to estimate the costs and resources of the Software Development and Maintenance.
The Different Structure of the Different Spectacles, That is, the specific user function and system characteristics. Requirements, specific user functions are the functionality that the user needs to be provided in accordance with the measurement system. These functions can be divided into five types, including information loss function, material output, information complimentary, system, and have officers in the system. Each of the five function types can be further defined as low, medium, high, and each complexity and multiplied by a specific number. When each number is added, the quantitative result of the information processing scale, Basic function point. In addition, the system of system is affected by the general system under the same system; and there is a characterization of the characteristics of the system to grade the system.
(a) Data communication; (h) online revision degree; (b) distributed processing; (i) complexity; (c) system performance; (j) reuse; (d) use existing equipment; (k ) Install convenience; (e) processing efficiency; (L) convenient operation; (f) online data input; (m) multiple computer venues; and (g)
User uses facilities;
(n) Change the convenience. Each attribute of the general application system is evaluated according to the scope. The sci-rang score is zero to five, that is, it is not imposing to have five levels with heavy impact. The total sum of all the effects of the shadow is finally determined by the value adjustment of the entire plan. Based on the number of valence modes, the number of applications that are displayed by the adjustable functional point is displayed.
The adjustment of the power point = (basic function point) X (value adjustment factor)
