Technical Debt (TD) is a metaphor introduced by Cunningham in 1992 to represent sub-optimal design or implementation solutions that yield a benefit in the short term but make changes more costly (or even impossible) in the medium/long-term. Nowadays, TD is studied as one of the main factors adding costs to software projects as it entails quality compromises that have a great impact in the final product.

 

Privacy is the ability of an individual or group to seclude themselves or information about themselves and thereby express themselves selectively. Multiparty privacy is concerned with information about several individuals and the conflicts that arise when the privacy preferences of these individuals differ. Along these lines, a developer can affect a user's privacy by producing software that is not properly anonymised or does not consider specific security concerns.