發送短信 : Human factors in agile software development

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| \  / ||   / _ \\  | || | ||  |  ___||  /_   _// 
|  \/  ||  | / \ || | || | ||  | ||__      | ||   
| .  . ||  | \_/ || | \\_/ ||  | ||__     _| ||   
|_|\/|_||   \___//   \____//   |_____||  /__//    
`-`  `-`    `---`     `---`    `-----`   `--`