Mutation-Based Harmony Search Algorithm for Hybrid Testing of Web Service Composition

Figure 7

Mutation operators. (a) Swap operator (randomly selects the positions and swaps services in those positions). (b) Insert operator (randomly chooses two positions from a service and inserts the back one before the front). (c). Reverse operator (selects the sequence of the service of random length and then reverses the order).

(a)

(b)

(c)