Consider the basic COCOMO model where E is the effort applied in person-months, D is the development time in chronological months, KLOC is the estimated number of delivered lines of code (in thousands) and ab, bb, cb, db have their usual meanings. The basic COCOMO equations are of the form
1
E = ab (KLOC) exp(bb), D = cb (E) exp(db)
2
D = ab (KLOC) exp(bb), E = cb (D) exp(db)
3
E = ab exp(bb), D = cb (KLOC) exp(db)
4
E = ab exp(db), D = cb (KLOC) exp(bb)