# A System for Measuring Function Points from an ER-DFD - download pdf or read online

By Lamma E., Mello P., Riguzzi F.

We current a device for measuring the functionality aspect (FP) software program metric from the specification of a software program process expressed within the type of an Entity courting (ER) diagram plus an information stream Diagram (DFD). First, the casual and common FP counting principles are translated into rigorous principles expressing houses of the ER-DFD. Then, the rigorous ideas are translated into Prolog. The measures given via the process on a few case reports are based on these of human specialists.

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Xa eiθa(t) αa +u(t), xa+1 eiθa+1(t) αa+1 −u(t), . . , xm−1 eiθm−1 (t) αm−1 −u(t), xm + 21 u(t)−iAt : 2 2 −· · ·−xm−1 +2xm = 0 . t ∈ (− , ), xj ∈ R, x12 +· · ·+xa2 −xa+1 Then N is a special Lagrangian submanifold in Cm . As in Sect. 3, if we assume that θ (t) ∈ (−π/2, π/2) for t ∈ (− , ) then u is an increasing function of t, and we can choose to regard everything as a function of u rather than of t. 4: 794 D. 3. Suppose θ (t) ∈ (−π/2, π/2) for all t ∈ (− , ). 1 is given explicitly by √ √ √ x1 eiθ1 (u) α1 + u, .

6. 9) where µ = (α1 + α3 )1/2 , ν = (α3 − α2 )1/2 (α1 + α3 )−1/2 and S 5 is the unit sphere in C3 . Then Φ is a conformal, harmonic map. We made the assumption above that α2 α3 . If α2 > α3 then we can apply the same method, but swapping over x2 and x3 , and α2 and α3 , so that x1 = (α1 + α3 )−1/2 dn(µs, ν), x2 = (α1 + α2 )−1/2 sn(µs, ν) and x3 = (α1 + α3 )−1/2 cn(µs, ν), where µ = (α1 + α2 )1/2 and ν 2 = α2 − α 3 . α1 + α 2 Note also that all of our expressions for xj (s) depend only on the linear combinations α1 + α2 , α1 + α3 and α2 − α3 of α1 , α2 , α3 .

Xm ) → w1 (t)x1 , . . , wm−1 (t)xm−1 , xm + β(t) , where w1 , . . , wm−1 : (− , ) → C \ {0} and β : (− , ) → C are differentiable functions. Following the method of Sect. e. upon w1 , . . , wm−1 and β. 1. 1. Let (m−1)/2 a m−1. Suppose w1 , . . , wm−1 : (− , ) → C \ {0} and β : (− , ) → C \ {0} are differentiable functions satisfying dwj w1 · · · wj −1 wj +1 · · · wm−1 , = dt − w1 · · · wj −1 wj +1 · · · wm−1 , and 1 j a, a < j < m, dβ = w1 · · · wm−1 . 3) Deﬁne a subset N of Cm by N= w1 (t)x1 , .

### A System for Measuring Function Points from an ER-DFD Specification by Lamma E., Mello P., Riguzzi F.

by Paul

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