dotted line 
noun
1A line made up of dots or dashes (often used in reference to the space left for a signature on a contract): Adam signed on the dotted line with a flourish...
- The addition of information on relatives for genetic evaluation is depicted by dotted lines, while dashed lines designate the use of predicted BLUP values.
- Vertical full lines delimit introns, and vertical dotted lines delimit the intergenic spaces.
- Dorsal and ventral clone borders are indicated by white dashed and yellow dotted lines, respectively.
2An indirect, informal, or secondary line of responsibility within an organization (as represented by a dotted line on an organizational chart): I report to Hal Jones, our CFO, with a dotted line to the audit committee...
- The networks report directly to Kellner, with a dotted line to Ancier.
- As I envision it, the banking head would report to Geithner with a dotted line to the Fed's Bernanke taking the day-to-day load off their respective plates.
- Because infosecurity resides in the IT department, the director of IT security reports to the CIO but maintains a dotted line to Becker.